Pentberthy Direct Reading Liquid Level Gages and · PDF fileFlat Glass Gages Overview Flat...

Section 2000Bulletin 2100Issued 10/07Replaces 10/05

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Table of Contents

Gagecocks

Flat Glass Gages

Offshore Gage Glasses

Tubular Glass Gages

Accessories

Gagecocks Overview........................................................................................24-25Flat Glass Gagecocks: Series 100, 200..................................................................26Flat Glass Gagecocks: Series 300, 400..................................................................27Flat Glass Gagecocks: Series 500..........................................................................28Flat Glass Gagecocks: Series 700..........................................................................29OS&Y Fugitive Emission Gagecocks: Series 550, 750 ............................................30Flat Glass Gagecocks: Series 600..........................................................................31Tubular Glass Gagecocks: Series N2, K2................................................................32Tubular Glass Gagecocks: Series K3 ......................................................................33Tubular Glass Gagecocks: Series N6......................................................................34Tubular Glass Gagecocks: Series N7......................................................................35

Flat Glass Gages Overview ..................................................................................4-7Low Pressure Flat Glass Gages: Models RL & TL ..................................................10Medium Pressure Flat Glass Gages: Models RM & TM, RMR & TMR ......................11High Pressure Flat Glass Gages: Models RH & TH, RHR & THR ..............................12Large Chamber Flat Glass Gages: Models RLC & TLC ............................................13Weld Pad Flat Glass Gages: Models RMW & TMW..................................................14Dimensions for Process Glass................................................................................15Ultra High Pressure Flat Glass Gages: Model TU ....................................................16Steam/Water Flat Glass Gages: Models TSL, TSL-F, TSM, TSM-F ..........................17

Offshore Glass Gages Overview ......................................................................18-19

Tubular Glass Gages Overview ........................................................................20-21

Graph-a-BondTM Gaskets ......................................................................................22Flat Glass Frost-Proof Illuminators........................................................................8-9Protectors, Illuminators, Extensions,Heating & Cooling Devices, Valves & Fittings ........................................................36Gasketed Union Tailpipes ......................................................................................23

TABLE OF CONTENTS3

© 2007 Tyco Valves & Controls, L.P. Prophetstown, All Rights Reserved

Flat

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Flat glass gages provide direct observation of liquid level in a processvessel. The process liquid level and liquid characteristics can be observedthrough the glass as it rises and falls inthe gage chamber.

The six basic components of flat glassgages are as follows:

ChamberPressure retaining element which provides rigidity to the gage assemblyand a means to connect the gage toisolation gagecocks or other vessel connections.

Penberthy’s standard chambers have aflat gasket seat to allow for easyremoval of gasket residue and fragments. Because the chamber doesnot have a recessed face, the gasketmay be removed quickly with a flatblade.

Penberthy has an optional chamber witha recessed gasket seating surface tomeet customer requirements.

Slots are machined into Penberthy’stransparent gage chambers rather thancontinuous vision slots. These crossties between vision slots increase the

mechanical integrity along the length ofthe chamber.

The cross tie provides a higher strengthchamber due to the reduction of unsupported beam length. Chambers areavailable with PFA (Teflon®), PECTFE(Halar®), and PETFE (Tefzel®) lining.

ArmoredFlat GlassGages

GasketSeals the gap and prevents leakingbetween the glass and the chamber.

GlassContains the process liquid and providesthe viewing window to the process liquidlevel.

CushionProtects the glass from mechanical stresspoints by acting as a buffer between theglass and cover.

CoverProtects the glass from mechanicalimpact along the sides of the chamberand provides a compression surface forthe bolts/studs/nuts to hold the gasketand glass tightly against the chamber.

Bolts/Studs/NutsProperly torqued gage bolting applies auniform compressive load to the gageassembly for pressure retaining purposes.

4

Gasket

Glass

Cushion

Bolts

Cover

StandardGasketChamber

RecessedGasketChamber

Reflex Transparent© 2007 Tyco Valves & Controls, L.P. Prophetstown, All Rights Reserved

Multiple SectionGagesTo meet visible glass lengths greaterthan Size 9 glass (12.625” [321 mm]),Penberthy stacks covers along thelength of the single chamber. Themaximum operating pressure andtemperature ordinarily determine thelargest glass size that can be used.

Vision slots are cut according to thesize of the glass used and thenumber of sections necessary tomeet the desired vision length orminimum center to center (vesselconnections). Support bracketsshould be attached to larger gages tosupport the weight of the gageassembly.

The maximum number of sections(covers) that can be used on a singlegage chamber is ten. If the requiredliquid level vision length extendsbeyond 139.750” [3550 mm], multiplesection gages may be bridled to astandpipe or alternately top-bottomside connected.

Gage ConnectionsEnd, side and back (typically reflexonly) connections can be machinedinto the gage chamber to provide endusers with desired center to center

distance and/or the optimum visionposition for liquid level viewing.Connections include NPT, BSP, ANSIflanged, DIN flanged and socketweld.

Gage Connections

Flat Glass G

ages Overview

5

3-section gageon continuous

chamber

Continuous visionsingle-section gages

on standpipe

Multiplesection gageson standpipe

Back ConnectSideConnect

EndConnect


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Reflex andTransparent GagesReflex gages have a single vision slotin which light can enter the gagechamber to determine liquid level.Above the liquid level, glass prismsreflect the surrounding light. Belowthe liquid level the liquid fills theprisms causing the glass to becomerelatively transparent.

Light striking the area of glass covered by transparent liquid isallowed to pass through to the interior of the gage along the entirelength of the covered prism. The lightis reflected from the back of thechamber to the observer. Typicallythe chamber appears dark. Anopaque liquid such as milk woulddirectly reflect the light at the surface of the prisms, where itappears as a solid column of white.

Light striking the area of the glassabove the liquid level experiencesinternal reflection. Internal reflectionwill occur when light attempts tomove from a medium having a givenindex of refraction to one having alower index of refraction.

When the light attempts to movefrom a higher index of refraction(glass – 1.47 index of refraction)to a lower index of refraction(air – 1.00 index of refraction

through the prism angle), it reflects ratherthan passes through to the back of thechamber. Except for a focused line of lightalong the apex of the prism, the surrounding light reflects back to theobserver appearing silvery.

The interface between the liquid andgas occurs where the silvery anddark/opaque area intersect.

Transparent gages have a vision slot onboth sides of the chamber. Light entersthe gage from the side opposite theobserver so that both the level of aliquid and its characteristics can be seen.For easier liquid observation in darkenvironments, illuminators are availablefor use with transparent gages.

Transparent gages may be used for interface applications.

Transparent

Reflex


Borosilicate glass is the most common type of optic material usedin Penberthy gages. Borosilicateglass offers good resistance to mostchemicals at temperatures at orbelow 600˚F [316˚C].

Penberthy uses tempered borosilicate glass in its gages toimprove thermal shock resistance.The tempering process involvesheating the glass to a glassy transition point and rapidly coolingthe glass to create compressivestress in the outer 1/6 of thickness.

Aluminosilicate glass has a higherviscosity and a lower thermalexpansion coefficient compared toborosilicate glass. Aluminosilicateglass is commonly used whereprocess temperatures are greaterthan 600˚F [316˚C] but are at orbelow 800˚F [427˚C].

Fused quartz is made from crystalline silica with few impurities(50 ppm by weight). The highesttemperature rating, 1000ºF [538ºC],is achieved by using quartz.

Materials other than quartz limita gage assembly’s maximumoperating temperature.

Penberthy offers quartz in its modelTH only. The physical properties ofquartz require an extremely flatseating surface. Flatness toleranceof gasket and cushion seating surfaces on chambers and coversmust be maintained to avoid torsional or point stresses on thequartz.

Shields (e.g., PCTFE, Mica) can beinstalled to prolong the life of transparent flat glass in corrosive orerosive environments such ashydrofluoric acid, sodium hydroxideor steam.

Flat Glass G

ages Overview

7

Borosilicate Glass, AluminosilicateGlass and Quartz

Armored GagesArmored flat glass gages give usersthe ability to visually inspect liquidcharacteristics (color, particulate,striations, turbulence) and monitor relative fill or drain rates in a variety ofapplications where vibration,temperature and/or pressure extremesrule out level technologies.

End users interested in establishing areliable, easy-to-understand level reference often use flat glass gages toverify electronic level device output atplant start-up or routine maintenance(especially pressure vessels).

Other distinct advantages:

• They require no electrical power.Level can be monitored in remotelocations where no power isavailable. In event of a power failure,the flat glass gage is not effected.

• They are not dependent on mostliquid properties. Multiple liquids canbe processed through the samevessel without concerns for density,surface turbulence, di-electric,conductivity, etc.

• They’re suitable for vacuumapplication.

• They provide a near-unlimited lengthof measure.

• They’re non-intrusive.

Temperature Ranges for Commonly Used Optical Material

Illuminator Assembly(see pages 8 & 9 for more information)


Incandescent Illuminators

S = single section flat glass (incandescent)D = double section flat glass (incandescent)W = LED white light single section flat glassM = magnetic gage (inch increment)N = LED white light magnetic gageT = LED tri-color single section flat glass

8


CSA certified Ex dDivision 1 and 2

Class I, Grp B,C,DClass II,Grp E,F,GClass III, Type 4, T4

GLASS SIZE (1,2,3,4,5,6,7,8 or 9,); MAG GAGE INDICATOR LENGTH (tens digit of inches; e.g., 24 inches use “2”, max. 48 inches)

Flat Glass Illuminators for Explosion-Proof applications - indoor or outdoor!The absence of a watertight seal onconventional gage illuminators has beenan ongoing problems for users seeking illumination in XP or cryogenic applicationsin an outdoor environment. Now,Penberthy has introduced the first standardlamp illuminator with a watertight seal,enabling users to get flat glass gage illumination outdoors with a product that’simpervious to the elements and can operate maintenance free and reliably foryears.

These new flat glass gage illuminators are available in single sectionunits, double section units and in combinations for three or more sectiongages.

ApprovalsThe standard illuminator rating is 60 wattsat 115Vac. Other illuminators are listed inthe Optional Models Structure table below.

UNITS ARE EXPLOSION-PROOF!

Optional Model StructureEXAMPLE: Standard illuminator for double section size 7 flat glass gage (2TM7) with 60 watt lamp and 115 volt service

I D S N 7

L = for TL gage (LED flat glass units only)M = for TM, TMR, TH, THR, TLC, and TSL gages (LED flat glass units only)U = for TU gage (LED flat glass units only)S = for TSM gage (LED flat glass units only)2, 4, 6, 8, A(10), C(12), or N (Not applicable -standard extention) = WEDGE DEPTH (inch) (Magnetic Gage Only)

Flat

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FM approved XPDivision 1 and 2

Class I, Grp B,C,DClass II, Grp E,F,GClass III, Type 4, T4

CENELECEExd IIB + H2 T4, IP66

I = Illuminator

S = standard extentionF = frost extensionR = reflex gage mount

9


Flat Glass G

ages Illuminators

FM approved I.S.Division 1 and 2

Class I, Grp A,B,C,DClass II, Grp E,F,GClass III, Type 4X, T6

N (not applicable-if flat glass); MAG GAGE INDICATOR LENGTH (unit digit of inches; e.g., 24 inches use “4”, max. 48 inches)

N 1 6

CSA certified Ex iaDivision 1 and 2

Class I, Grp A,B,C,DClass II, Grp E,F,GClass III, Type 4X, T6

LED Illuminators (pending)

2 = 25w - pigta i l leads3 = 25w - termina l b lock6 = 60w - pigta i l leads7 = 60w - termina l b lock9 = termina l b lock

nominal current @ 6 VDC 0.092Anominal current @ > 9 VDC 0.038A

1 = 115 Vac s tandard thread 1” NPTFA = 115 Vac ISO thread2 = 230 Vac s tandard thread 1” NPTFB = 230 Vac ISO thread4 = 24 VDC standard thread 1” NPTFD = 24 VDC ISO thread5 = 6-9 VDC standard thread 1/2” NPTME = 6-9 VDC ISO thread6 = 9-24 VDC standard thread 1/2” NPTMF = 9-24 VDC ISO thread

Tired of changing light bulbs in traditional gage illuminators? How about a nominal MTBF of ten (10 years?Penberthy now offers LED illuminator in two styles, both designed intrinsically safe, weather tight and either is useableon reflex or transparent gages. A white light version for standard illumination. A fast reading, jumper programmable(field or factory set) red / amber / green / black for those wishing to indicate danger / caution / safe / optimal operatingzones just like aircraft and race cars use.

for less demandingprocess conditions...Penberthy’s low pressure gages aredesigned to maximize the mechanicaland economical advantages of ductileiron covers.

All materials in low pressure gagesconform to ASTM specifications.RL gages can achieve pressures to2400 psig [16550 kPa] @ 100ºF[38ºC] and TL gages can achievepressures to 2000 psig [13790 kPa]@ 100ºF [38ºC] when manufacturedwith size 1 glass – see ratingstable below.

Penberthy does not recommendlow pressure gages forsteam/water applications.

Threaded1/2” NPTF3/4” NPTF

Socketweld1/2” female3/4” female

Flanged



Flanged

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End Connections

Side or Back (typically reflex only) Connections

CONNECTION TYPE STANDARD OPTIONAL

XX

XXX

XXX

XX

Low Pressure Flat Glass Gages

Standard/Optional Features

Model RL –Reflex Low Pressure

Model TL –Transparent Low Pressure

Model RLPressure/Temperature

Model TLPressure/Temperature

NOTE: Pressure/Temperature ratings shown for standardgasket, otherwise see chart on page 15.


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Medium

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for most commonprocess conditions...Strength and versatility makePenberthy’s medium pressure gagesideal for most common processconditions. Offshore specification2600.1 is preferred with medium pressure gages in offshore and othercorrosive environments.

All materials in medium pressure gagesconform to ASTM specifications.RM gages can achieve pressures to3000 psig [20680 kPa] @ 100˚F [38˚C]and TM gages can achieve pressures to2500 psig [17240 kPa] @ 100˚F [38˚C]when manufactured with size 1 glass –see ratings table below.

Although not designed for thermalcycling, Penberthy allows use ofmedium pressure gages for steam/water applications due to historicalprecendence - see Application Report2781 in Penberthy Catalog.



Flanged



Flanged

For environmental Nace MR0175 &/or MR0103 gages, pressure de-rating is required

Medium Pressure Flat Glass Gages

End Connections




ChambersRecessed Gasket

XX

XXX

XXX

XX

X*Gages with recessed gaskets are designed with theletter R at the end of the Model Number (i.e. RMR)

Model RM –Relfex Medium Pressure

Model TM –Transparent Medium Pressure

Model RMPressure/Temperature

Model TMPressure/Temperature


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Heavy dutyconstruction for highpressure resistance...Penberthy engineers its high pressurecover to allow maximum ratedpressure regardless of glass size.High pressure gages resist torsionalstresses exceptionally well to providea process gage for the mostdemanding applications.

All materials in high pressure gagesconform to ASTM specifications.RH gages can achieve pressures to4000 psig [27580 kPa] @100˚F [38˚C]and TH gages can achieve pressuresto 3000 psig [20680 kPa] @ 100˚F[38˚C] for all glass sizes – see ratingstable below.

Penberthy does not recommend highpressure gages for steam/water applications. They are designed for highpressure, but low thermal cycle duty.



Flanged



Flanged


End Connections




ChambersRecessed Gasket*

XX

XXX

XXX

XX

X*Gages with recessed gaskets are designed with theletter R at the end of the Model Number (i.e. RHR)

High Pressure Flat Glass Gages

Model RH –Reflex High Pressure

Model TH –Transparent High Pressure

Model RHPressure/Temperature

Model THPressure/Temperature



Large Cham

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Flanged

for turbulent surfaceor extremelytransparent liquids...Combining high pressure covers and alarge cylindrical chamber, these gages canimprove accuracy in determining turbulentvessel liquid levels. In addition tosimulating the function of a stilling well andproviding a liquid column approximatelyfour times the diameter of standard gages,large chamber gages can provide endconnections up to 2” NPTF that canaccommodate various instrumentation.

All materials in large chamber gagesconform to ASTM specifications.RLC gages can achieve pressures to2400 psig [16550 kPa] @ 100˚F [38˚C]and TLC gages can achieve pressures to1580 psig [10890 kPa] @ 100˚ F [38˚C]for all glass sizes – see ratings table below.

Penberthy does not recommend largechamber gages for steam/waterapplications.

Threaded1/2” NPTF3/4”-2” NPTF

Socketweld1/2”-2” female

Flanged

End Connections




XX

XX

XXX

XX

Large Chamber Flat Glass Gages

Model RLC –Reflex Large Chamber

Model TLC –Transparent Large Chamber


Model RLCPressure/Temperature

Model TLCPressure/Temperature


for direct mounting tovessel wall...For application involving high vibration,highly viscous liquids or liquids withconsiderable amounts of solids,Penberthy offers end users a flat orradius weld pad gage. Because thereare no nipples through which theprocess liquid enters the gage,clogging potential is eliminated.

When welding the gage to a vessel, it isextremely important to take properprecautions to prevent warpage of thechamber. Penberthy stronglyrecommends the use of an optionalsteel spacer for welding.

After welding, it is important to checkthe flatness of all glass seating surfacesas described in Penberthy’s Installation,Operation, and Maintenance manual.

All materials in weld pad gages conformto ASTM specifications. RMW and TMWgages can achieve pressures to 2000 psig[13790 kPa] @ 100˚F [38˚C] – when manufactured with size 1 glass– see table below.

Flat PadRadius Pad

2” [51 mm] min. radius through12” [305 mm] max. radius

Isolable Gagecocks

Integral gagecocks can be added toPenberthy’s weld pad gages. Thesegagcocks allow the gage to be isolated formaintenance without lowering the liquidlevel below the gage.

Penberthy does not recommend weldpad gages for steam/water applications.

IsolableGagecocks –Weld PadGage

14Weld Pad Flat Glass Gages

FEATURE STANDARD OPTIONAL


X

XX

Model RMW –Reflex Medium Weld Pad

Model TMW –Transparent Medium Weld Pad


Model RMWPressure/Temperature

Model TMWPressure/Temperature

NOTE: Pressure/Temperature ratings shown for standard gasket, otherwise see chart on page 15.


Wel

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imensions for Process G

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Graphite ribbon (Grafoil®) and non-asbestos (Nobestos D-7301®) gasket ratingsare derived from performance curves.

GasketMaterial 100˚F [38˚C] 250˚F [121˚C] 300˚F [149˚C] 400˚F [204˚C] 500˚F [260˚C]

Buna-NEPDMNeopreneViton® (FKM)Daikin® (PCTFE)Teflon® (PTFE)

300 [2070]300 [2070]300 [2070]300 [2070]300 [2070]300 [2070]

225 [1550]225 [1550]225 [1550]225 [1550]225 [1550]225 [1550]

– –210 [1450]210 [1450]210 [1450]210 [1450]210 [1450]

– –– –– –

180 [1240]180 [1240]180 [1240]

– –– –– –– –– –

150 [1030]

Maximum Pressure at specified temperature psig [kPa]

Dimensions for Process Gages

Sections Model Glass Size Visible LengthEnd ConnectedOverall Length

inch inchmm mm

1111111112222223333444555667788991010

RL/TLRM(R)/TM(R)RMW/TMW

RLTLRM

RMRTM

TMRRH

RHRTH

THRRLCTLC

RMWTMW

12345678945678967897897898989898989

3.7504.7505.7506.7507.8759.125

10.25011.87512.62515.00017.25019.75022.00025.25026.75030.37533.75038.62540.87545.50052.00055.00057.25065.37569.12578.75083.25092.12597.375

105.500111.500118.875125.625132.250139.750

95121146171200232260302321381438502559641679772857981

10381156132113971454166117562000211523402473268028323019319133593550

5.2506.2507.2508.2509.375

10.62511.75013.37514.12516.50018.75021.25023.50026.75028.25031.87535.25040.12542.37547.00053.50056.50058.75066.87570.62580.25084.75093.62598.875

107.000113.000120.375127.125133.750141.250

133159184210238270298340359419476540597679718810895

101910761194135914351492169917942038215323782511271828703058322933973588

Pressure/TemperatureDe-Rating for MaterialOther Than Standard

5 Section GageSize 9 Glass

for extraordinarypressure and vaporrequirements...The method of clamping and sealingthe glass differs from other gages inthat the glass does not experiencestress concentrations imposed bybolting. The glass becomes afloating member between two solidlybolted blocks of rigid plate.

The pressure activated seal principleprovides a self adjusting means ofmaintaining a tight joint betweenglass and liquid chamber. Thegasket system compensates formachining variations.

Because glass can take atremendous amount of evenly loadedcompression, the gage can withstandextremely demanding pressurerequirements.

All materials in TU gages conform toASTM specifications. TU gages canachieve pressures to 6000 psig[41370 kPa] @ 250˚F [121˚C].Pressure rating is not glass sizedependent. A higher temperaturerating 400˚F [204˚C] @ 6000 psig[41370 kPa] can be achieved byusing Viton®. Teflon® can achieve500˚F [260˚C] @ 6000 psig[41370 kPa].

Penberthy does not recommendultra-high pressure gages forsteam/water applications.



Flanged



Flanged

11111222223333

TUTUTUTUTUTUTUTUTUTUTUTUTUTU

13457134573457

3.5315.5316.5317.656

10.0318.875

12.87514.87517.12521.87520.21923.21926.59433.719

90140166194255225327378435556514590675856

6.5008.5009.500

10.62513.00011.75015.75017.75020.00024.75023.09426.09429.46936.594

165216241270330298400451508629587663749929

End Connections

Side Connections

Sections ModelGlassSize

Visible Length End ConnectedOverall Length

inch mm inch mm

Ultra-High Pressure Flat Glass Gages16



XX

XX

XXX

XX

X

Model TU -Transparent Ultra HighPressure

Model TUPressure/Temperature


Dimensions


Ultr

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Pres

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17Steam

/Water Flat G

lass Gages

for dynamic thermalenvironments...Designed to expand and contractduring dynamic thermal conditions,these steam/water gages have extra-heavy construction incorporating awide chamber. Thermally inducedgage stresses are absorbed by thelinear expansion within the stuffingbox or the expansion loop.

TSL stuffing box or TSL-F flangedconfigurations can be used forsteam/water service at or below 650psig [4480 kPa]. TSM stuffing box orTSM-F flanged configurations can beused at or below 1500 psig[10340 kPa] steam/water service.

Mica shields and Belleville washersare standard to improve the long termsealing of the gage. All materialsconform to ASME/ASTM specifications.

The following gagecocks are suggestedfor use with steam/water gages:

Model 730 OS&Y - for Model TSLand TSM gage having flanged gageconnections;

Model 780 OS&Y - for Model TSLand TSM gage having stuffing boxconnections.

NOTE: Pressure/ Temperature ratings shown for standard gasket.

Model TSL, TSL-F, TSM, TSM-FPressure/Temperature

Connections

Stuffing box nipple 3/4” dia.

Flanged

Expansion Loop

Mica Shields

X

X

XXX

X

X

XXX

FEATURE TSL TSL-F TSM TSM-FStd Opt Std Opt Std Opt Std Opt

TSL Configurations

TSM Configurations

TSL1 section

TSL2 section

TSL3 section

TSL-F1 section

TSL-F2 section

TSL-F3 section

TSM1 section

TSM2 section

TSM3 section

TSM-F1 section

TSM-F2 section

TSM-F3 section

Steam/Water Flat Glass Gages


Sections Model GlassSize

Visible Length

inch mm

TSLTSL-FTSM

TSM-F

111222333

679679679

9.00010.12512.50017.00019.25024.00025.00028.37535.500

229257318432489610635721902

Stuffing BoxNipple

Dimensions

After experiencing a problem onone of their offshore rigs, amajor oil company requested thatTyco initiate a research programto develop better corrosion protectionfor offshore gage glass. To assessthe relative strengths andweaknesses of various coatings andmaterials commonly used as“offshore protection,” we subjected anumber of our own gages as well ascompetitive models to an acceleratedcorrosion/weathering test (ASTMB117). While the tests wereperformed in a controlled laboratoryenvironment, the exposure to over2500 hours of heat and salt sprayprovided a corrosive environment thatwas judged to be comparable to twoyears of actual offshore use.

Above left is a Penberthy gage(figure 1) which was used offshore fortwo years in the Gulf of Mexico. Itwas prepared according to anindustry-accepted specification whichthe oil company had established forits offshore equipment. Badlycorroded and potentially dangerous,this gage establishes a benchmarkfor the kind of corrosion anddeterioration that typically occurs

18Offshore Gage Glasses

1

4

2 3

5 6

1 Two years actualoffshore exposure

2&3 Two years offshore exposure simulated in lab

4 Flourocarbon and MolyDiSulfide coatings too easliypenetrated

5 Three-part coatingapplied to individual partsprior to gage assemblycontrols corrosion-excepton hardware

6 Three-part coating asapplied by Penberthyprovides true “offshoreprotection”

Competitive comparison shows the need for concernin selecting a gage with “offshore” design

As important as coatings are in makinga gage corrosion-resistant, their valuecan be rendered useless if the glass isleft vulnerable to other types of damage. The total protection of gageglass is critical in complementing theeffectiveness of offshore coatings.

The Penberthy offshore gage design isunique in its ability to completely isolate the gage glass from abrasiveforces. This complete protection isimportant because even seemingly

minor abrasions can cause thetempered gage glass to lose mostof its pressure containing ability.

The following diagrams illustrate therelative vulnerability of the glass oncompetitive models.

Exposed Glass Exposed Glass Exposed Glass Exposed Glass

Other U.S.Manufacturer

EuropeanManufacturer

JapaneseManufacturer

Latin AmericanManufacturer

Off

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19O

ffshore Gage G

lass Overview

during two years of actual offshoreuse. Corrosion on interior surfaceshas put stress on the glass, making itvulnerable to failure. Also, the heavilycorroded bolts cannot be retorqued inroutine maintenance.

As a result of these tests, Tycohas developed a unique three-partcoating, applied to the componentsbefore the gage is assembled, toprovide unprecedented gageprotection in offshore application.The Penberthy gage also includes avariety of unique design features tofurther extend gage life.

Durable coatings complement theeffectiveness of inorganic zinc

Polyurethane Top-Coat(2.5 to 3 mil)Its glossy tile-like finish dramatically upgradesthe weather resistance of the layered coatings.Provides excellent added protection fromchemicals and abrasion as well.

Epoxy Tie-Coat (4 to 8 mil)Epoxy polyamide complements the zinc primerby providing added abrasion resistance andprotection from weathering. Also provides aneffective base for the topcoat.

Inorganic Zinc Primer (2 to 3 mil)

This self-curing coating produces a tight bond toprepare surfaces and protects steel galvanically.Meets performance requirements ofANSI N 101.2-1972 and N 5.12-1974.

First, and prior to assembly, all metalparts are coated with a layer ofsacrificial inorganic zinc. Then, afterassembly, they are sprayed with anepoxy tie coat and urethane finish.

Nuts, bolts and washers are stainlesssteel to assure that they will never rustand that nuts can be periodicallyretorqued, as required. Washers,in turn, prevent the protectivecoatings on the cover from beingscraped off.

Attached with a durable silicone sealant,this strong clear polymethylmethacrylatepanel fully protects the glass front from flying sand and debris. Illuminators for offshore gages are always type 4x and thePMMA wedge is sealed the same as thePMMA gage glass protecting panel.

Gage cover extends the full depthof the glass and protects it laterally fromsandblasting and other abrasives fromnearby installation and maintenanceoperations.

Three Protective Coatings

Stainless Steel Hardware

Tough PMMA Panel

Deep Wall Cover

for cost effectivelevel indication...Penberthy Tubular Glass Gages areused to register liquid levels in low tomedium pressure applications. Theyare externally mounted to the vesseland use tubular glass to providedirect visual verification of the liquidlevel present. The transparent glassalso provides an excellent means tooptically inspect fluid characteristics.

Liquid enters the gage through thelower tank connection. The meniscuspresent in the glass tube correspondsto the liquid level in the tank.Available accessories allow you tocustomize each gage to your specificapplication requirements. Theseoptions can also provide enhancedlevel indication and protection for thetubular glass.

ProtectorsTubular glass is susceptible toaccidental breakage. To counteractthis condition, Penberthy offers avariety of protectors. Theseprotectors prevent damage to theglass, but do not restrict levelindication capability. In some casesthe protector actually enhances it.Protectors can be adapted to fit mostmajor manufacturers’ gagecocks.

Guard Rods – Two or four metallicrods placed next to the glass tube.

Plastic or Wire Glass – A transparentbox surrounding the tubular glassconstructed from either clear plastic orwire glass.

Sheet Metal – Two pieces of sheetmetal formed to protect both sides ofthe tubular glass. The front and backare left open to facilitate easy viewing.

Refractive – An extruded aluminumchannel with your choice of either apolymer or glass cover. The interioris a white anodized finish with 45ºangle red stripes on the back wall. As

Tubular Glass Gages

the gage fills, liquid passes in front ofthe stripes. The refractive nature ofthe liquid changes the stripe angleshowing the highly visible contrastbetween liquid presence andabsence.

If water is the liquid used, the stripesbecome horizontal. Liquids with arefractive index less than water willalter the angle less, higher indexeswill alter the angles more. Therefractive protector is designed for usewith standard tubular glass.

Internal TubesA stainless steel internal heating orcooling tube that passes through thelength of the tubular glass can be usedin conjunction with an offset patterngagecock and high pressure glass.

Glass UnionIntended for use in gages over 48” inheight. It allows you to join two piecesof glass within the same gage. Thisincreases the length of the gage, yetmaintains the same pressure/temperature rating as the individualpieces of glass. Glass unions shouldbe used in conjunction with therefractive protector to providemechanical stability.

Glass Union

Wire GlassProtector

PlasticProtector

RefractiveProtector

(Glass Union)

SheetMetal

Protector

RefractiveProtector

WireGuard Rod

Tubu

lar

Gla

ss G

ages

Ove

rvie

w20



Tubular Glass G

ages Overview

21

Hydraulic AdaptersHydraulic Adapters are used in placeof gagecocks for connecting the gage toyour vessel. They attach directly tothe ends of the tubular glass,providing a 1/2” NPT maleconnection. This allows you toincorporate most standard hydraulicconnections currently available.

Hydraulic Adapter

Using secured Glass Unions and multiple pieces of tubular glass will increase the pressure/temperature rating over that of anequivalent length of single glass.

310 [2140]280 [1930]265 [1830]250 [1720]

Pressure/Temperature Ratings for Gages with a Single Piece of Tubular Glass (Both 5/8” and 3/4”)

Center to CenterDistance For Vessel

Connections

No Corrosion up to 150ºF [66ºC] Steam Boiler Service Up to 425ºF [218ºC]

Inches [mm] Psig [kPa] Psig [kPa]

HighPressure

HeavyWall

RedLine

HighPressure

HeavyWall

RedLine

10 [ 254]15 [ 381]20 [ 508]25 [ 635]30 [ 762]35 [ 889]40 [1016]45 [1143]50 [1270]55 [1397]60 [1524]65 [1651]70 [1778]

410 [2830]385 [2650]355 [2450]300 [2070]275 [1900]240 [1650]210 [1450]200 [1380]180 [1240]150 [1030]140 [ 970]125 [ 860]100 [ 690]

600 [4140]600 [4140]600 [4140]580 [4000]550 [3790]500 [3450]420 [2890]360 [2480]340 [2340]

N/AN/AN/AN/A

340 [2340]310 [2140]285 [1960]260 [1790]230 [1590]200 [1380]180 [1240]170 [1170]160 [1100]140 [ 970]120 [ 830]100 [ 690]

90 [ 620]

275 [1900]265 [1830]260 [1790]250 [1720]

345 [2380]325 [2240]315 [2170]300 [2070]

NOT RECOMMENDED

Temperature Ratings for Typical Packing Material

Packing TypeMaximum Temperature

Rating ºF [ºC]Grafoil ® (Standard)

Teflon ®

Neoprene ®

Viton ®

425 [218]

425 [218]

300 [149]

400 [204]

Gagecocks Plastic or WireGlass Protector

PartMaterial Specifications for Glass Unions and Hydraulic Adapters

Glass Union

Hydraulic Adapters

Steel Brass 316 STS

X

X

X

X

X

X

OPTIONS

Options Available for the Different Types of Tubular Glass

HydraulicAdapters

GuardRods

SheetMetal

RefractiveProtector

InternalTube

Glass Type(Both 5/8” and 3/4”)

High Pressure

Heavy Wall

Red Line

Glass Union

XX

XX

XX

XX

XX

X

XX

X

XX

X

X

X

X

X

Gra

ph-A

-Bon

d G

aske

ts22


The Graph-a-BondTM

gasket: superior strength andbetter adhesion

Frustrated with GRAFOIL® gasket folding,flecking, denting and slipping? Penberthyhas the answer – a graphite compositegasket that provides both superior strengthto resist gasket deformation and better surface adhesion than commonly usedgraphite gaskets. (Concept is covered by US Pat# 5,895,058, otherpatents and proprietary data may pertain).

Penberthy has combined the grip of fibrousgasketing with the superior sealing andphysical attributes of graphite to create aGraph-a-BondTM gasket. It provides:

• Excellent chemical resistance• Efficient conduction of thermal energy• Stability at high temperatures• Extremely low microporosity (leakage)• “Springback” resilience to conform to

curved and flat surfaces• Reduced gasket blow-out

Penberthy has also attached a fibrous gasket (elastomeric binder) to the otherwise exposed graphite material tonegate its natural lubricity and difficulty inhandling. As a result, handling Penberthy’sGraph-a-Bond gasket is much easier thanconventional graphite gaskets, helping toeliminate the possibility of damage duringgage assembly. The fibrous laminate alsogives the graphite a higher degree ofstiffness to resist deformation or bendingbetter than graphite gaskets with polyesteror metal inserts.

The Penberthy gasket is also ideal to retrofit onto aged chambers that haveexperienced rebuilds over the years andmay leak if conventional graphite gaskets are used. Note that the Penberthygasket fits any manufacturer’s standard-size flat glass gage. Gasket material can bemanufactured for use with other fittingsincluding flanges.

Cross-section of gasket, showingfibrous laminate providingstiffness and better handlingcharacteristics

The laminate bonding is crucial tothe success of this gasket form. Itis a very thin combination of acrylonitrile and phenolic polymers.The acrylonitrile, a thermoplastic,provides the initial bonding at relatively low temperatures andduring the heated pressure rollerinitial laminating phase. As temperature is increased duringapplication, the acrylonitrile carbonizes and the phenolic, a thermosetting polymer, becomesthe bonding agent. At extreme temperatures, the entire seal(binders, adhesives, etc.) turns carbonaceous with high bondingstrength to the sealed members(the so-called “frying-on”). Oncecarbonaceous an effective seal canbe maintained until such time asexcessive mechanical shifting ofthe elements (due to pipe stresses,thermally induced movement, etc.)occurs.

TM


Gasketed U

nion Tailpipes23

NEW!

GAGE CONNECTION

Metal Union (Standard)

Metal Union

Gasketed Union

Gasketed Union

MODEL MATRIX

Gasketed Union Tailpipes

A Solution to UnionConnection Leakage . . . . . Penberthy now offers a metallic (AISI 304 stainless steel) spiralwound graphite gasket that fits in a precision machined groove inthe union face of the gagecock body.

This gasket will compensate for any small misaligned plumbingconnections and will provide a tight and effective seal. When experiencing larger misalignment problems, consider a sphericalunion connection.

This option will virtually eliminate leaks, reduce maintenance costand will add to the overall safety of the installation.

For periodic maintenance, simply replace the gasket pre-form.

If a gasket is needed on the gage connection only, use model number X22. For a vessel connection gasket only,use model nunber X21 or X31. For gasketed gage and vessel connections, use model number X23.

Examples:Model 423 = 400 series gagecock with gasketed union gage and vessel connections.

Model 331 = 300 series gagecock with a rigid gage connection and a gasketed union vessel connection.

X = 100, 200, 300, 400, 500, 700, series gagecocks

Rigid

Rigid

VESSEL CONNECTION


Gasketed Union

Metal Union

Gasketed Union


Gasketed Union

X20

X21

X22

X23

X30

X31

Gag

ecoc

ks O

verv

iew

24


Offset and straightpattern designs forflat glass and tubularglass gagesPenberthy offers offset and straightpattern gagecocks that isolate the gagechamber from the liquid contents ofthe vessel. Gagecock seat leakage isClass I per ISA RP39.6, FCI 70-2 (formerlyASME B16. 105) and/or IEC 60534-4.

Offset gagecocks have an advantageof permitting the inside of the gageglass to be cleaned easily with aminimum of disassembly. Byremoving the vent and drain plugs(or other connection), a straightpassage through the gage chamberis opened. A brush can be insertedthrough the gagecock vent and drainfor glass cleaning.

To prevent rapid loss of fluid in theevent of accidental glass breakage,Penberthy supplies its gagecocks withautomatic ball check shut-off. Shouldthe glass break, the pressure dropcauses the ball checks to seat toprevent loss of tank contents.

To unseat these ball checks duringthe liquid level readings, the tip of thegagecock stem has an extension thatpushes the ball away from its seatwhile allowing the gage column to fillas liquid contents pass around theball. Stainless steel retainers preventreverse seating of balls or loss ofballs during installation.

Both upper and lower gagecocks in eachset are equipped with horizontal ballchecks. Balls are located on the vesselside of the gagecock seats.

Gagecocks with ball checks omittedmeet ASME boiler requirements. As analternative method to ASME boilerrequirements, the lower gagecock isavailable with an optional vertical risingball check located in the offset portion ofthe gagecock body, and the uppergagecock has a leaky seat.

Gagecock Connections

Gagecock Bodies

DIMENSIONS (Flat Glass)To obtain the maximum length permissible for given vessel center-to-centerdimension using 1/2” nipples:

Maximum Gage Length =(Gagecock Center-to Center Dimension) - (Dimension X)

To determine the overall length of nipples needed to make up a gage set forfixed vessel center-to-center dimension using 1/2” nipples:

Combined Nipple Length =(Gagecock Center-to-Center Dimension) - (Gage Length + Dimension Y)

Overall nipple length can be divided between nipples to suit the application.Minimum length required for each nipple is: 1-1/8” for 1/2” NPT nipple;1-3/8” for 3/4” NPT nipple.

Penberthy Floating Shank union vessel connection permits gagecock center-to-center dimension to vary 3/8” [9.5 mm] total from actual vesselcenter-to-center dimension.

Gagecocks:Flat Glass and Tubular Glass

SphericalUnion

Flanged SolidShank

SocketWeld

UnionNPT-M

OFFSET STRAIGHT

(x)30 SeriesOffset Pattern

(x)20 Series Offsetand Straight Pattern


Series 100, 200, 300, 400and 600 GagecocksThese gagecocks have inside screwthreads that are wetted by the liquid.They are offered with a wide range offeatures in both straight and offsetpattern designs (600 Series - offset only).

Series 500 and 700Gagecocks - OS&YThese are outside screw and yokegagecocks that are used for hightemperature or corrosive-liquidapplications. The OS&Y designisolates the stem threads from theliquid. The stem seats in a reciprocativeinstead of a rotary fashion.

Series N2, K2, K3, N6 andN7 GagecocksPenberthy tubular glass gagecocksare for use in lower pressureapplications. They are available withmany of the same combinations offeatures described above for a rangeof uses, including union or solidshank vessel connections and achoice of stuffing box sizes forvarious glass diameters. All stuffingbox connections are designed forpositive seal with minimum radialcompression. Both straight andoffset pattern gagecocks are offered.

Vertically RisingBall Check

Standard Gagecock

Vacuum Seat

Backseating Stem(Union Bonnet Gagecocks only)

DIMENSIONS (Tubular Glass)To obtain the length of glass tubing needed to make up gage set for givenvessel center-to-center dimension:

Glass Tubing Length =(Vessel Center-to-Center Dimension) - (Dimension X)

To obtain the length of guard rods for given gagecock center-to-centerdimension:

Guard Rod Length =(Gagecock Center-to-Center Dimension) - (Dimension Y)

Gagecocks O

verview25

Stra

ight

Pat

tern

Fla

t G

lass

Gag

ecoc

ks26


1500 lb. ANSI rating – Pressures to4000 psi @ +100ºF [27580 kPa@ +38ºC]Temperature Ranges from-300ºF to +750ºF [-184ºC to +399ºC]

Design FeaturesThe 100 and 200 series includesmodels 120/220 and 130/230with these standard features:

• Straight pattern• Integral bonnet (100 series)• Union bonnet (200 series)• Union Vessel connection• Gage connection

Model 120/220 - UnionModel 130/230 - Rigid

• Ball Check Shutoff• Integral seat (100 series)

Threaded renewable seat (200 series)

A variety of optional features areavailable when specified.

Optional materials can be specified forthe gagecock body and trim. (Trim consistsof the stem, stem packing retainer, ballcheck, and seat (200 series only)). Standardand optional materials conform to ASTMSpecifications.

ASME Boiler CodeSeries 100 and 200 gagecock sets thatare acceptable for ASME Boiler Code aresupplied with ball check shut-offsomitted.

120/220

130/230

4000 [27580] 4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

3900 [26890]

3900 [26890]

3815 [26300]

3815 [26300]

3730 [25720]

3730 [25720]

3525 [24300]

3525 [24300]

3355 [23130]

3355 [23130]

2620 [18060]

2755 [18990]

FEATUREPattern

StraightBonnet

Gage Connection

Vessel Connection

Vent/Drain Connection

Ball Check Shut-Off

Seat

Handwheel

Lever

IntegralUnion

Union

Rigid

Socketweld

FlangedSpherical Union

Union

Solid Shank

Socketweld


1/2” NPTF3/4” NPTF

Horizontal Lower and Upper GagecocksOmitted *Vacuum - Horizontal Upper and Lower

IntegralThreaded (Renewable)Backseating Stem

w/ Standard Pitch Threadsw/ Quick Closing Thread

w/ Quick Closing Thread (1/4 turn)

Std Opt Std Opt Std Opt Std Opt

X X X X

XX

XX

X X

X X

1/2” NPTF1/2” NPTM3/4” NPTF3/4” NPTM1/2” NPTF3/4” NPTF1/2” Female1/2” Male3/4” Male3/4” Female

1/2” NPTF1/2” NPTM3/4” NPTM

1/2” NPTF1/2” NPTM3/4” NPTM1” NPTM (non floating)

1/2” NPTM3/4” NPTM1” NPTM1/2” Male3/4” Male1” Male

1/2” NPTF1/2” NPTM3/4”NPTM

X

X

X

X

XX

X

X

XX

X

X

X

X

XX

X

X

X

X

X

X

X

X

X X

X X

X

X XX X

X

XX X

XXXX

XXX

XX

X

X XX XX XX X X X

X X

X XXX

X X

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

XX

XX

X

XXX XX

XX

XX

XX

XX

* Acceptable for ASME Service

120 220 130 230

Straight Pattern Flat Glass Gagecocks


5-5/8 [14.9]

2-5/8 [7.3]

3-3/8 [9.2]

3/8 [1.6]

Model Dimension Xinches [cm]

Dimension Yinches [cm]

Center-to-CenterDimensions (see p. 24)

Construction -300ºF [-184ºC]psi [kPa]

-150ºF [-101ºC]psi [kPa]


100ºF [38ºC]psi [kPa]







Forged Steel

Stainless Steel

Pressure/TemperatureMaximum working pressure, psi [kPa] at temperatures to-

Series 100 Series 200

230130

X



Design FeaturesThe 300 and 400 series includesmodels 320/420 and 330/430with these standard features:

• Offset pattern• Integral bonnet (300 series)• Union bonnet (400 series)• Union vessel connection• Gage connection

Model 320/420 - UnionModel 330/430 - Rigid

• Ball Check Shutoff• Integral seat (300 series)

Threaded renewable seat (400 series)

A Variety of optional features areavailable when specified.

Optional materials can be specified forthe gagecock body and trim. (Trim consistsof the stem, stem packing retainer, ballcheck, and seat (400 series only)). Standardand optional materials conform to ASTMSpecifications.

ASME Boiler CodeSeries 300 and 400 gagecock sets that areacceptable for ASME Boiler Code are availableas an option. Model 320/420 gagecock setswith this option can be supplied either withball check shutoffs or with them omitted.Model 330/430 gagecock sets with this optionhave the ball check shutoffs omitted.

320 420 330 430FEATURE

Pattern

OffsetBonnet

Gage Connection

Vessel Connection


Ball Check Shut-Off

Seat

Handwheel

Lever

IntegralUnion

Union

Rigid

Socketweld


Union

Solid Shank

Socketweld



Horizontal Lower and Upper GagecocksVertical Lower/Horizontal Upper Gagecock *Omitted *Vacuum - Horizontal Upper and Upper

IntegralThreaded (Renewable)Backseating Stem

w/ Standard Pitch Threadsw/ Quick Closing Thread

w/ Quick Closing Thread (1/4 turn)

Std Opt Std Opt Std Opt Std Opt

X X X X

XX

XX

X X

X X



1/2” NPTF1/2” NPTM3/4” NPTM1” NPTM (non floating)


1/2” NPTF1/2” NPTM3/4”NPTM

X

X

X

X

XX

X

X

XX

X

X

X

X

XX

X

X

X

X

X

X

X

X

X X

X X

X

X XX X

X

XX X

XXXX

XXX

XX

X

X XX XX XX X X X

X X

X XXX

X X

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

X

XX

X

X

XX

XX

XX

XX

X

XXX XX

XX

XX

XX

XX


X

X X

Offset Pattern Flat G

lass Gagecocks

27Offset Pattern Flat Glass Gagecocks


320/420

330/430

5-5/8 [14.9]

2-5/8 [7.3]

3-3/8 [9.2]

3/8 [1.6]




4000 [27580] 4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

3900 [26890]

3900 [26890]

3815 [26300]

3815 [26300]

3730 [25720]

3730 [25720]

3525 [24300]

3525 [24300]

3355 [23130]

3355 [23130]

2620 [18060]

2755 [18990]

Construction -300ºF [-184ºC]psi [kPa]










Forged Steel

Stainless Steel

Pressure/TemperatureMaximum working pressure, psi [kPa] at temperatures to-

Series 300 Series 400

430330

Stra

ight

Pat

tern

/OS&

Y Fl

at G

lass

Gag

ecoc

ks28



Design FeaturesThe 500 series includes models520 and 530 with thesestandard features:

• Straight pattern• Outside screw and yoke• Solid shank vessel connection• Gage connection

Model 520 - UnionModel 530 - Rigid

• Ball Check Shutoff• Threaded renewable seat• Backseating stem


Optional materials can be specified forthe gagecock body and trim. (Trim consistsof the stem, stem packing retainer, ballcheck, and seat.) Standard and optionalmaterials conform to ASTM Specifications.

ASME Boiler CodeSeries 500 gagecock sets that areacceptable for ASME Boiler Code areavailable as an option. Gagecock setswith this option are supplied with ballcheck shut-offs omitted.

520 530FEATURE

Pattern

Straight

OS&Y

Gage Connection

Vessel Connection (Solid Shank)


Ball Check Shut-Off

Seat

Handwheel

Union

Rigid

Socketweld


Threaded

Socketweld

Flanged


Horizontal Lower and Upper GagecocksOmitted *

Threaded (Renewable)Backseating Stem

w/ Standard Pitch Threadsw/ Quick Closing Thread (1/4 turn)

Std Opt Std Opt

X





4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

3900 [26890]

3900 [26890]

3815 [26300]

3815 [26300]

3730 [25720]

3730 [25720]

3525 [24300]

3525 [24300]

3355 [23130]

3355 [23130]

2620 [18060]

2755 [18990]

OS&Y

X

XX

XXXX

XXXX

XX

XX

XXXX

XX

XX

XX

XX

XX

XX

XX

XX

X XX X

X XX XX X

X XX X

Construction

Forged Steel

Stainless Steel


100ºF[38ºC]psi [kPa]







Maximum working pressure, psi [kPa] at temperatures to-

Straight Pattern/OS&Y Flat Glass Gagecocks

520

530

6-3/8 [16.8]

4-3/8 [11.7]

4-1/8 [11.1]

2-1/8 [6.0]




Pressure/Temperature


Series 500

530


1500 lb. ANSI rating - Pressures to4000 psi @ +100ºF [27580 kPa@ +38ºC]Temperature Ranges from-20ºF to +750ºF [-29ºC to +399ºC]

Design FeaturesThe 700 series includes models720, 730 and 780 with thesestandard features:

• Offset pattern• Outside screw and yoke• Solid shank vessel connection• Gage connection

Model 720 - UnionModel 730 - RigidModel 780 - Stuffing Box

• Ball Check Shutoff• Threaded renewable seat• Backseating Stem


Optional materials can be specified forthe gagecock body and trim. (Trim consistsof the stem, stem packing retainer, ballcheck and seat.) Standard and optionalmaterials conform to ASTMSpecifications.

ASME Boiler CodeSeries 700 gagecock sets that areacceptable for ASME Boiler Code areavailable as an option. Ball checkshut-offs can be omitted; or the Model720 and 780 can have a verticalrising lower ball check and horizontal,leaky upper ball check.

720 730 780FEATURE

Pattern

Offset

OS&Y

Gage Connection



Ball Check Shut-Off

Seat

Handwheel

Union

Rigid

Socketweld


Stuffing Box

Threaded

Socketweld

Flanged


Horizontal Lower and Upper GagecocksVertical Lower/Horizontal Upper Gagecocks*Omitted *



Std Opt Std Opt Std Opt

1/2” NPTF1/2” NPTM3/4” NPTF3/4” NPTM1/2” NPTF3/4” NPTF1/2” Female1/2” Male3/4” Female3/4” Male

1/2” NPTF1/2” NPTM3/4” NPTM3/4”Adapter Diameter



OS&Y

X X X

X X X

X X XX X X

X X XX XX X X

X X XX X X

X X XX X X

X X XX X X

X X XX X X

X X X

X X X

X X X

X

X

X

XXX

XXX

XX

XXXXXX

4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

3900 [26890]

3900 [26890]

3815 [26300]

3815 [26300]

3730 [25720]

3730 [25720]

3525 [24300]

3525 [24300]

3355 [23130]

3355 [23130]

2620 [18060]

2755 [18990]

Construction

Forged Steel

Stainless Steel










Offset Pattern/O

S&Y Flat Glass G

agecocks29

Offset Pattern/OS&Y Flat Glass Gagecocks

720

730

6-3/8 [16.8]

4-3/8 [11.7]

4-1/8 [11.1]

2-1/8 [6.0]






Series 700

730

OS&

Y Fu

gitiv

e Em

issi

on G

agec

ocks

30



The “Arrestor” FugitiveEmission GagecockEnvironmental pollution is a globalissue. Environmental regulationsimpacting plant operations includegagecocks. The “ARRESTOR” OS&Ygagecock is utilized with gage glass,mag gage or other apparatus whenprocess fluid vapors or gases are considered to be environmentally harmful.

Penberthy’s “ARRESTOR” gagecocks areindividually serialized and tested tomeet EPA emission test requirements.Each (550/750 gagecock) is shippedwith its individual test reportthat certifies less than 5 ppm methaneequivalent leak rates using Kalrez®

packing. Kalrez®/Zymaxx™, API 607III Edition Fire Test qualified, is apacking material option.

Models 551/751 are available withtype-accepted packing, rated to leakrates of 500 ppm methane equivalent.

Optional materials of construction canbe specified for the gagecock body andtrim. (Trim consists of the stem, stempacking retainer, ball and seat.)Reference Penberthy MaterialSpecification sheets for optionalmaterials.

550/551 750/751FEATURE

PatternStraightOffset

OS&Y

Gage Connection



Ball Check Shut-Off

Seat

Handwheel

Socketweld

Rigid

Flanged

Socketweld

Threaded

Flanged

1/2” Female3/4” Female1/2” NPTF3/4” NPTF

Horizontal Lower and Upper GagecocksBall Checks Omitted



Std Opt Std Opt

X

1/2” Female3/4” Female1/2” NPTF3/4” NPTF

1/2” Male3/4” Male1” Male1/2” NPTM3/4” NPTM1” NPTM

OS&Y

Socketweld

Threaded

X

XX

XXXXXXXXXX

XXXX

XXXXXXXX

XX

XX

XXXXXX

XXXX

XXXX

XXXX

4000 [27580]

4000 [27580]

4000 [27580]

4000 [27580]

3900 [26890]

3900 [26890]

3815 [26300]

3815 [26300]

3730 [25720]

3730 [25720]

Construction

Forged Steel

Stainless Steel







OS&Y Fugitive Emission Gagecocks



Series 550/750

750


Offset Pattern Flat G

lass Gagecocks

31

Pressures to 6000 psi @ +250ºF[41370 kPa @ +121ºC]Temperature Ranges from-50ºF to +250ºF [-46ºC to +121ºC]

Design FeaturesThe 600 series includes model 630with these standard features:

• Offset pattern• Union bonnet• Union vessel connection• Rigid gage connection• Ball Check Shutoff• Threaded renewable seat• Backseating Stem


Optional materials can be specifiedfor the gagecock body and trim. (Trimconsists of the stem, stem packingretainer, ball check and seat.)Standard and optional materialsconform to ASTM Specifications.

Pressure/TemperatureRangeModel 630 gagecocks are rated forpressures up to 6000 psi [41370 kPa]over a temperature range of -50ºF to+250ºF [-46ºC to +121ºC]. Optionalo-ring materials for vessel tailpipecan be used to increase temperaturecapability.

630FEATURE

Pattern

Straight

Bonnet

Rigid Gage Connection

Vessel Connection


Ball Check Shut-Off

Seat

Lever

Threaded

Socketweld

Flanged

Union

Solid Shank

Socketweld

Flanged

3/8” NPTF1/2” NPTF3/4” NPTF

Horizontal Lower and Upper GagecocksOmitted *



Std Opt

X

1/2” NPTF3/4” NPTF1/2” Female3/4” Female

1/2” NPTM3/4” NPTM1” NPTM1/2” NPTM3/4” NPTM1” NPTM1/2” Male3/4” Male1” Male


Union X

XXXXX

XX

XX

XX

XXX

XXX

XX

XX

XXX

Offset Pattern Flat Glass Gagecocks

630


3-1/8 [8.6] 7/8 [2.9]




Series 600

Off

set

Patt

ern

Tubu

lar

Gla

ss G

agec

ocks

32


300 lb. ANSI rating - Pressures to750 psi @ +100ºF [5170 kPa@ +38ºC]Temperature Ranges from-300ºF to +750ºF [-184ºC to +399ºC]

Design FeaturesThe N2 and K2 series include modelsN2A/K2A, N2B/K2B and N2C/K2C withthese standard features:

• Offset Pattern• Integral bonnet (N2 series)

Union bonnet (K2 series)• Union vessel connection• Stuffing Box gage connection• Ball check shutoff• Integral seat (N2 series)

Threaded renewable seat (K2 series)


Optional materials can be specified forthe gagecock body and trim. (Trim con-sists of the stem, stem packing retainer,ball check, and seat (K2 series only)).Standard and optional materials conformto ASTM Specifications.

ASME Boiler CodeSeries N2 and K2 gagecock sets that areacceptable for ASME Boiler Code areavailable as an option.

For steam/water service in excess of 350psi [2400 kPa], transparent flat glassgages with tubular adapters and shieldsare recommended.

675 [4650]

750 [5170]

675 [4650]

750 [5170]

675 [4650]

750 [5170]

610 [4210]

675 [4650]

590 [4070]

655 [4520]

555 [3830]

610 [4210]

400 [2760]

450 [3100]

MODEL

N2A K2A N2B K2B N2C K2CStd Opt Std Opt Std Opt Std Opt Std Opt Std Opt

X X X X X X

X X XX X X

X XX X X X

X XX X

X XX X X X X XX X X X X XX X X X X XX X

X XX X

X X X X X XX X

X X

X X X X X X

X X X X X X

X X X X X XX X X X X XX X X X X XX X X X X X

X X XX X XX X X

X X X X X XX X X X X X

X X X X X X

X X X X X X

FEATUREPattern

Offset

Bonnet

Integral

Union

Gage Connection

Stuffing Box 5/8” Glass Diameter

3/4” Glass Diameter

Vessel Connection

Union 1/2” NPTM

3/4” NPTM

1” NPTM (non-floating)

Solid Shank 1/2” NPTM

3/4” NPTM

1”NPTM

Socketweld 1/2” Male

3/4” Male

1” Male

Flanged

Spherical Union 1/2” NPTM

3/4” NPTM

Vent Connection

3/4” NPTF

Drain Connection

1/2” NPTF

Ball Check Shut-Off

Horizontal Lower and Upper Gagecocks

Vertical Lower/Horizontal Upper Gagecocks*

Omitted*

Vacuum - Horizontal Upper and Lower

Seat

Integral

Threaded (Renewable)

Backseating

Handwheel

w/Standard Pitch Threads

w/Quick Closing Threads

Lever

w/Quick Closing Thread (1/4 turn)

Guard Rods (4 per gagecock set)

1/4” [6.4 mm] diameter


Steel & 316 STSN2A/K2A

Steel & 316 STSN2B/K2B, N2C/K2C

Maximum working pressure, psi [kPa] at temperatures to--300˚F [-184˚C] -20˚F [-29˚C] 100˚F [38˚C] 300˚F [149˚C] 400˚F [204˚C] 500˚F [260˚C] 750˚F [399˚C]

psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa]

Offset Pattern Tubular Glass Gagecocks

All Models 1-7/8 [4.8] 2-3/8 [6.0]



Center-to-Center andGuard Rod Dimensions(see p. 25)


Pressure/Temperature (Subject to limitations of tubular glass)

Series N2 Series K2


Std Opt Std Opt

X X

X X

X

X

X

X

X

X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

300 lb. ANSI rating – Pressures to500 psi @ +100ºF [3450 kPa @ +38ºC]Temperature Range from-20ºF to +550ºF [-29ºC to +288ºC]

Design FeaturesThe K3 series include models K3A (150 lb. ASA) and K3B (300 lb. ASA) withthese standard features:

• Offset pattern• Union bonnet• Rigid vessel connection• Stuffing box gage connection• Ball check shutoff• Backseating stem• Drain cock furnished

A variety of optional features are avail-able when specified.

Optional materials can be specified forthe gagecock trim. (Trim consists of thestem, stem packing retainer and ballcheck.) Standard and optional materialsconform to ASTM Specifications.

ASME Boiler CodeSeries K3 gagecock sets that are accept-able for ASME Boiler Code are availableas an option. These gagecock valve setshave a vertical rising ball check shut-offin the lower gagecock and a horizontalleaky ball seat in the upper gagecock.

K3A K3BFEATUREPattern

Offset

Bonnet

Union

Gage Connection

Stuffing Box 5/8” Glass Dia.

3/4” Glass Dia.


Threaded 1/2” NPTM

3/4” NPTM


3/4” Male

Flanged

Drain Connection

3/8” NPTF

Ball Check Shut-Off

Horizontal Lower and Upper Gagecocks

Vertical Lower/Horizontal Upper Gagecock*

Omitted*

Seat

Integral

Backseating Stem

Handwheel

w/Quick Closing Threads (1/4 turn)

Lever

Lever

Drain Cock

Furnished




225 [1550]

500 [3450]

225 [1550]

500 [3450]

215 [1480]

475 [3270]

190 [1310]

425 [2930]

170 [1170]

375 [2580]

150 [1030]

325 [2240] 300 [2070]

175 [1210]

360 [2480]

MODEL

K3A

K3B

Maximum working pressure, psi [kPa] at temperatures to--20˚F [-29˚C] 100˚F [38˚C] 200˚F [93˚C] 300˚F [149˚C] 400˚F [204˚C] 500˚F [260˚C] 550˚F[288ºC]

psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa] psi [kPa]Max. Steam Pressure

Offset Pattern Tubular Glass Gagecocks

Offset Pattern Tubular G

lass Gagecocks

33

All Models 2 [5.1] 2-1/8 [5.4]






Series K3

34


125 lb. ANSI rating – Pressures to200 psi @ +100ºF [1380 kPa @+38ºC]Temperature Range from-20ºF to +400ºF [-29ºC to +204ºC]

Design FeaturesThe N6 series consists of model N6A with these standard features:

• Straight pattern• Integral bonnet• Rigid vessel connection• Stuffing box gage connection• Ball check shutoff• Drain cock furnished

A variety of optional features are available when specified.

Optional materials can be specified for the gagecock trim. (Trim consists of thestem, stem packing retainer and ballcheck.) Standard and optional materialsconform to ASTM Specifications.

Steam ServiceSeries N6 gagecock sets for steam service are available as an option.

N6AStd Opt

X

X

X

X

X

X

X

X

X

X

X

X

X

X

FEATUREPattern

Straight

Bonnet

Intergral

Gage Connection (Solid Shank)


Vessel Connection



Flanged

Drain Connection

3/8” NPTF

Ball Check Shut-Off

Verticle Lower/Horizontal Upper Gagecock

Vertical Lower/Horizontal Upper (Steam service Seat)*

Omitted*

Seat

Integral

Handwheel

w/Standard Pitch thread

Drain Cock

Furnished


3/16” [4.8mm] diameter


200 [1380]200 [1380] 190 [1310] 165 [1100] 125 [860] 125 [860]

MODEL

N6A


Max. Steam Pressurepsi [kPa]

WITH STANDARD NEOPRENE GLASS PACKING WITH OPTIONAL TEFLON GLASS PACKING400˚F [204˚C]

psi [kPa]-20˚F [-29˚C]

psi [kPa]200˚F [93˚C]

psi [kPa]300˚F [149˚C]

psi [kPa]100˚F [38˚C]

psi [kPa]

Straight Pattern Tubular Glass Gagecocks

N6A 1-5/8 [4.1] + 1/2 [1.3]






Series N6

Stra

ight

Pat

tern

Tub

ular

Gla

ss G

agec

ocks


Pressures to 500 psi @ +100ºF[3450 kPa @ +38ºC]Temperature Range from-20ºF to +500ºF [-29ºC to +260ºC]Design FeaturesThe N7 series include models N7A andN7B with these design features:

• Straight pattern• Integral bonnet• Rigid vessel connection• Stuffing box gage connection• Ball check shutoff• Integral drain cock

A variety of optional features are availablewhen specified.

Combinations of optional features andmaterials are available. Each combinationis designated by the model number in theFeatures table. Optional materials can bespecified for the gagecock body and trim.(Trim consists of the stem, stem packingretainer and ball check.) Standard andoptional materials are available for serviceas described by ASTM Specifications.

ASME Boiler CodeSeries N7 gagecock sets that are accept-able for ASME Boiler Code are available asan option. These gagecock sets have avertical rising ball check shut-off in thelower gagecock and a horizontal ball inthe upper gagecock.

MODEL

BronzeN7A 200 [1380] 200 [1380] 190 [1310] 165 [1140] 125 [860] 125 [860]N7B 400 [2760] 400 [2760] 385 [2650] 335 [2310] 250 [1720] 250 [1720]

Ducille IronN7A, N7B 500 [3450] 500 [3450] 460 [3170] 375 [2580] 290 [2000] 250 [1720] 350 [2410]STL, STSN7A, N7B 500 [3450] 500 [3450] 500 [3450] 500 [3450] 500 [3450] 500 [3450] 500 [3450] 350 [2410]


Max. Steam Pressurepsi [kPa]

WITH STANDARD NEOPRENE GLASS PACKING WITH OPTIONAL TEFLON GLASS PACKING450˚F [232˚C]

psi [kPa]-20˚F [-29˚C]

psi [kPa]200˚F [93˚C]

psi [kPa]300˚F [149˚C]

psi [kPa]400˚F [204˚C]

psi [kPa]500˚F [204˚C]

psi [kPa]100˚F [38˚C]

psi [kPa]

Std Opt Std Opt

X X

X X

X

X

X

X

X

X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

FEATUREPattern

Straight

Bonnet

Intergral

Gage Connection


3/4” Glass Dia.

Vessel Connection ((Solid Shank)


3/4” NPTM


3/4” Male

Flanged

Drain Connection

3/8” NPTF

Ball Check Shut-Off

Horizontal Lower and Upper Gagecocks (Iron, STL, STS)

Vertical Lower/Horizontal Upper (Bronze)

Vertical Lower/Horizontal Upper *

Omitted*

Ball Inspection Plug**

Furnished

Omitted

Seat

Integral

Handwheel

w/Standard Pitch Thread (Iron, STL, STS)

w/Quick Closing Threads (Bronze)

Drain Cock

Integral

Polished Body

Bronze



* Acceptable for ASME Service **Required for ASME Service

N7A N7B

Straight Pattern Tubular Glass G

agecocks35

Straight Pattern Tubular Glass Gagecocks

All Models 2 [5.1] 3/4 [1.9]






Series N7

An internal heating or cooling tube isoffered for tubular and flat glass gages. Thetube passes through the inside of the gageand is in direct contact with the liquid.

Double-and single-sided external heatingand cooling chambers are offered for L andM series gages. External chambers do notcontact the liquid inside the gage.

Lightweight, flexible, silicon-impregnated,fiberglass insulation is available for a widevariety of gagecocks, gages and other instrumentation. Reduces heat or cold lossat temperatures from -65ºF to +1000ºF{-55ºC to +540ºC}. Penberthy insulatingcovers can also be used with frost proofextensions and illuminators.

Represented By:

Certification Number 30053ISO 9001:2000

TYCO VALVES & CONTROLS, L.P.320 Locust St. • Prophetstown, IL 61277Tel. (815) 537-2311 • Fax (815) 537-5764Email: [email protected]: www.penberthy-online.com

Frost-proof extensions are clear plasticwindows that fit over the visible part of the glass in flat glass gages. In low temperatureapplications, they prevent build-up of frostover the visible part of the gage resistingobstruction of the view of liquid level.

Drain valves, drain cocks and try cocksare used in the drain or vent connection offlat glass liquid level gages.

An extended packing nut is recommendedfor accommodating gagecocks with protectorsand gage scales for tubular gagecocks.

Gage scales are constructed of corrosion-resistant materials.

PENGAGETM Selection software allows for fast, accurate and simple gage/gagecock specification.

Many other accessories are available.See your representatives for details.

Frost-Free Sizing

Lowest Temperature Size

-30º F [-35º C] 2”-94º F [-70º C] 4”

-148º F [-100º C] 6”-211º F [-135º C] 8”-274º F [-170º C] 10”-328º F [-200º C] 12”

Tubular gages and end connect & side connect flat glass gages withoffset pattern gagecocks, internal tube and packing adapters

Reflex gage with external chambermounted to back and jacketed gagecocks

Transparent gage with singleexternal chamber

Insulation Blanket

Other Accessories . . .

36


Single maleMale/maleMale/femaleFemale/female

StyleNPT

1/8” 1/4” 3/8”

XXXX

XXXX

X

Frost-proof extensions Drain cocks

Try cock Extending Packing Nut

Drain valve Gage scale

www.arcoengineering.com

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