R4 · IN ROCKWELL.NORDSTROM AND DYNAMIC BALANCE VALVES ROCKWELL SEALANTS Rockwell Sealants are...

v-105 - R4

tl Rockwell

WWW.AUTHORIZEDPARTS.COM

WWW.AUTHORIZEDPARTS.COMWWW.AUTHORIZEDPARTS.COM

For more than fifty years, Rockwell has pioneeredin valve research, developing improved products tokeep pace with the increasingly demanding needsof industry. This background of valve experience,which has made Rockwell Nordstrom Valves thestandard of quality the world over, has led to thedevelopment of valve Sealants that work efficientlyover a wide range of service, pressure and tempera-ture conditions.

The heart of the Rockwell Nordstrom Valve is itsdry fi1m coated plug working hand in hand withthe proper Sealant to obtain the ultimate in valveperformance. In designing this valve, extensive

ALWAYS SPECIFY ROCKWELL SEALANTS FOR USE

development testing with modern materials led tothe selection of a facing material of exceptionallylow coefficient of friction that is thermally bondedto the metal surfaces of the plug. This coating nowgiues a permanent separation of metal surfaces of plugand body, minimizing sticking, and assists in easieroperation. However, to insure maximum shutoffperformance at ail times, it is best to provide thesevalves with a regular program of Rockwell Seaiantinjection. This combination of permanent dr5, fiImcoating plus Sealant gives Nordstrom all the opera-tional and shutoff features required by today'svalve users.

FUNCTIONS OF SEALANT1. PLUG JACKING

The fr,rndamental operating principle of the Rockwell Nold-strom Valve design Iies in the application of Pascal's Law. ThisIaw states that a uirit presstlre applied to the liquid contained in-asealed vessel is traiismitted tn et'e.y part of the liquid withundiminished force, thus multiplying the force many times,depending on the alea ofthe interior ofthe vessel. The Sealant,rt

^det p..I.rre developed by tulning the Rockwellfitting or by a

f'ew stiokes of a sealant g.,n. supplies the hydraulic means forlifting the plug from its tapered- ieat when and if that force isneeded to free the plug.

2. RENEWABLE SEAT-No need to tear down valve or removeit f rom the line.

The Sealant, really a stluctulal part of the valve, provides aflexible and renewable seat, eliminating necessity of force fitcontacts to effect a seal. Fol this pulpose, the Sealant not onlymust have proper plasticity, brtt also resistance to line fluidssuch as sol,renis an? chemicials. This forms a seal trround eachbody port even undel pressule.

3. DROP.TIGHT IMPERVIOUS SEAL.To secure an absolutely tight impervious seal, the film of

Sealant works hand in hand with the permanent dry film coatingto folm a seal between plug and body. This seal is formed bySealant transmitted in a "sealdport" system of grooves aroundeach part. With proper selection of Rockwell Sealant, for yourparticirlar selvic^e, this tight seal can lle letained ovel a widei'ange of temperatures and plessules.

@ Rockwell Manufacturing Company 1968 2

DRY FILM PLUGCOATING ANDSEALANT PREVENTMETAL.TO-METALCONTACT ev filmins over

bearing irregularities

Valve Plug <-

+ Valve BodY

Dry filmcoating

Sealantfilm

No matter how fine a metal surface may be

ground, the metal is a series of tiny peaks and

valleys. So, when one metal sur{ace rubs 'Yagainst another, friction is setup and adhesion,shearing or plowing may result,

Dry film plug coating and a protective fllmof sealant over the bearing area prevents thismetal-to-metal contact.

@ Rockwell International Corporation, 1974, 1975



IN ROCKWELL.NORDSTROM AND DYNAMIC BALANCE VALVES

ROCKWELL SEALANTS

Rockwell Sealants are products of years of research anddevelopment. Time tested by actual use in millions of RockwellNordstrom valves now in the field, Rockwell Sealants haveproven to be the best for the services for which they arerecommended.

The Sealants listed on pages 4 and 5 are adequate for.prac-tically all services except a relatively few special requirementsfor which we will be glad to make recommendations on request.Included in this listing are No. 234 Silicone Sealant for unusualor extreme service conditions; No. 281 Fluorosilicone Sealantfor low temperature service where chemical stability is required;and No. 660 Fluorocarbon Sealant of outstanding chemicalstability.

Rockwell Sealants are availably in Stick, Bulk and Gun Pakform. Not all Sealants are made in all three forms since in somecases to do so would mean reduction of solvent-resisting orchemical-resisting properties; in other cases satisfactory viscosityor temperature range could not be maintained. The tables onpage 4 and 5 show the forms in which each individual Sealantis supplied.

Stick Sealants are identified by letters "A", "B", "C", "D","G", "J" and "K" denoting size with a number indicating theformula. Sticks are packed in boxes of ?A each as listed hereinexcept for size "J" which is packed 6 sticks per box and size"K" which is packed 12 sticks per box. The dimension tablesin valve catalogs show the size of Sealant sticks required forevery valve listed.

For use in 400-D Handguns as described on page 11, mostSealants are available in size "J" sticks and Gun Paks whichare designed to fit the gun barrels. ("K" sticks are for the 400-AHandgun.)

234 sealant is available in bulk tubes. One tube fits all sizesand types of Rockwell Nordstrom valves and simplifies inven-tory problems. Sealant in tubes is always kept fresh with nochance for contamination by dirt or grit.

Bulk Sealants in five quart (4.7 liters) cans are for use inHypreguns where larger quantities of Sealant are required. Alsoavailable are bulk Sealants in five gallon (18.9 liters) pails, 30gallon (113.6 liters) drums and fifty-five gallon (208 liters)drums. This bulk form is regularly supplied in a soft consistencyfor normal use in pumping equipment. For extreme conditions,such as cold weather, where regular bulk Sealants might be tooviscous for ready use, bulk Sealants are available on specialorder in a special soft consistency for easier pumping. Thesespecial soft Sealants are indicated by the suffix letters "SS"following the formula number. The formulas in which this con-sistency is available are specified on pages 4 and 5.

ASSEM BLY SEALANT_ITS PURPOSERockwell plug valves, as received by the purchaser, unless

otherwise specified, are filled with what is termed an "assem-bly" Sealant. This assembly Sealant, made especially fortesting purposes, is suitable for certain types ofseivices but isnot intended to handle all line fluids and operating conditionssuch as may be encountered in actual service. It is essential,therefore, for proper performance that all valves be servicedbefore being installed with the proper Sealant recommendedfor the service conditions. This may be determined by refer-ence to Pages 4 through 9.

Where so specified on the order, standard price Sealantssuitable for actual operating conditions will be injected intovalves without disassembly at no extra charge. In such cases,either the Sealant formula number or full details of line fluidto be handled and the temperature must be specified.

Dismantling, cleaning out and complete packing of valveswith proper Sealant is sometimes necessary for satisfactoryuse ofspecial price Sealants such as the Silicone and Fluoro-carbon forrnulas or for hazardous applications such as nitrat-ing acids and oxygen, or for other special applications such asfood and pharmaceutical materials. This is an extra chargeservice and must be specified. An extra charge will be madefor any special price Sealants used in valves at the pur-chaser's request.

DYNAMIC BALANCETM PLUG VALVESRockwell's new Dynamic Balance plug valve is designed to provide predict-able low torque operation without requiring periodic maintenance.

The Dynamic Balance valve design provides metal-to-metal seating for tightshut-off. Dynamic Balance valves are equipped with a sealant back-up systemfor bubble-tight shut-off on hard-to-hold gases and liquids. Sealant must beinjected into the Dynamic Balance valve either by using Rockwell Gun Paksand a sealant hand gun or in bulk form using a Rockwell-Hypregun - theDynamic Balance valve will not accept sealant in stick form.



The sealants listed below are adequate to take care

of practically all service conditions and are available

from regular stock. When special conditions arise'

write direct or contact our nearest office.Oursealantresearch staff will give special attention to suchproblems,

CHARACTERISTICS

v

V

sEAlfitrIIUMBERS

GRAllES

AYAITABLE

IEMP. RANGE

FR|)M T(l C(lLOR PRIl{CIPAt SERYICES U1{SUIIABLE T()R

117 StickBulkSS BulkGun Pak

20(-6.1)

-50(-1020(-8.7)

- 50( - t6)

I 25(51.5)

l0(26.7)

l?5(51.E)l0(26.7)

White Acids (including nitrating), alcohols, alkalies, aqueous

solutions, glycerine, dyes (alcohol soluble), water.

Food and pharmaceutical applications as determined

suitable by the user.

Hvdrocarbon solvents.

107 StickBulkGun Pak

50fl0)20(-0.r)20(-6.r)

E50(3{3}

050(3t3)

650(3t3)

Gray Air and Gas Dryer service, High Temperature Hot

Water, hot oil, steam and hot oilisteam combinations

on burner front application.

Limit oxidizing services to 500'F.

Liquid light hydrocarbons,aromatic solvents, nitratingacids.

231 TubeGun Pak

Bulk

-r0(-{0}-10(-t0)-10 (-{0)

100(200

100(20t)

100(20{}

White A silicone sealant for hot air, hot water, steam, high

vacuum, acetic acid, acetic anhydride, ethyl alcohol

below 250' F., natural gas compressor discharge, food

and pharmaceutical applications as determinedsuitable by the user.

Gasoline and light liquid hydro-

carbons, strong mineral acids,aromatic and chlorinated sol-

venls.

zEr Bulk -8q-62) 400(204) White A fluorosilicone sealant for low temperature liquid hydro-

carbons, gaseous hydrocarbons, strong acids and alkalies.Ketones.

CAUTI0N: Not recommended lor

use in services above 400oIToxic vapors maY be evolved ai

temperatures above 500oF.

357 StickBulkSS BulkGun Pak

0(-17.E)0(-il.t)0(-r7.r)0(-il.t)

200(93)

rr509.f)200(s3)

175(7s.0

Light-Brown

Gasoline, kerosene, mineral oils, naphtha, oil soluble

dves.

Water and aqueous solutions,steam, alcohols, nitratingacids.

3E6 StickBu lkSS BulkGun Pak

- 20( - 29)

-10(-l0l- 20( - 23)

-|0(-r0)

250fl21)

250fl21)

250fl21)

250fl21)

Cream General gas and water sealant. Suitable for dry or wetgas, water works, and sewage services as determined

suitable by the user.

0rganic solvents, strongchemicals.

121 StickBu lkSS BulkGun Pak

l0( -0(-

l0 (-0(_

2.21

r.t)2.21

7.t)

350fl77)

3000{s)350(1 7t)300flfs)

Cream Acids, alkalies, alcohols, amines, asphalt, aqueous

solutions, fats, glycerine, glycols, soap, water, steam.

Food and pharmaceutical applications as determined

suitable by the user,

Hydrocarbon solvents.

555 StickBul k

SS BulkGun Pak

-10(-23)-20(-29)-10(-23)-20(-2Sl

500(200)

500(260)

500(200)

500(260)

Brown General purpose sealant for aliphatic hydrocarbon

liquids and gases including gasoline, kerosene, fuel

and lubricating oils, crude distillates, sweet or sour

natural and manufactured gas with water or organic

condensates, LPG systems; dilute acids and alkalies,

glycols, textile plants, aqueous solutions, water'

Aromatic solvents, strongchemicals, hot air.

555WG Stick(J onlY)

BulkGun Pak

-20(-23)

-10(-{0}- {0(-10}

300fi19)

300flf9)300fllgl

Brown Same as 555 but use only for extreme and prolonged

winter cold conditions.

Aromatic solvents, strongchemicals, hot air.

651 StickBu lkSS BulkGun Pak

50fl0)

0(-rr.t)50fl0)

0t- lt.t)

500(280)

500(260)

500(260t

500(260

Brown Solvent treating of lubricating oils, hot hydrocarbon

vapors and gases, general hot oil service, asphalt.Liquid light hYdrocarbonsaromatic solvents, stronEacids and chemicals.

Black numerals are'F.Blue numerals are 'C.

v



OF ROCKWELL SEALANTS

SEALAl{T

NUMBERSGRAOES

AYAITABTETEMP. RAI{GE

T()FR()M c0r0R PRINCIPAT SERYICES UI{SUITABTE F()R

060 1 Lb.

5 Lb.20 (-6.7) 100 (201) White A fluorocarbon sealant of outstanding chemical

stability. Useful for strong acids, alkalies, andoxidizing agents for which the resistance of thesehalogenated materials is known.

Note: Compatibility to specific environment or test(e.9. impact insensitivity, nonflammability, etc.), shouldbe determined by user.

Satisfies requirements of MIL-T-55428 "Thread Com-pound, Antisieze and Sealing, 0xygen Systems."

0rganic solvents, moltensodium, liquid fluorine, liquidchlorine trifluoride. Avoid usewith light metals (e.g, alu-minum, magnesium) especiallyunder conditions of rubbing.Caution: Like many other common-ly used natural and svntheticmaterials, thermal brdakdownproducts may be harmlul. Avoidinhalation and orovide ventilationfor work areas where these mate-rials are subiected totemperaturesin excess of 572'F. Avoid contam-ination oJ smoking tobacco, ciga-rettes. etc.

755 StickBul k

SS BulkGun Pak

30 (-r.r)20 (-6.7)30 (-r.r)20 (-6.7)

300 fl19)300 (us)

300 fll$300 fl19)

Pi nk Benzene, butane, solvent naphthas, toluene, gasolinecontaining benzene or large amount of aromatic hydro-carbons, carbon bisulfide, carbon tetrachloride, animaland vegetable oils.

Strong acids, nitrating acids,alcohols, water, aqueoussol utio ns.

833 BulkGun Pak

-10 (-10)

-40 (-10)r60 (7r)

160 (71)ClearYellow

Aviation gasoline, jet fuel, hydrocarbon and aromaticso lvents.

Aqueous solutions, mineralacids, nitrating acids, water.

852 Bu lk -150 (-l0l) -50 (-{t) Nea rlyColorlesr

Gas or oil lines at extremely low temperatures, lubeoil de-waxing.

Water, nitrating acids, alco-hols, aqueous solutions.

862 Bu lkGun Pak

Stick

-85 (-65)

-85 (-65)

-85 (-60

250 (12r)

250 (121)

250 02r)

LightBrown

Natural gas transmission lines under variable extremeclimatic temperatures. Air and inert gases at sub-zer0tem oeratu res.

Liquid hydrocarbon solvents,strong chemicals.

921 StickBulkGun Pak

30 (- l.l)0 (-r7.8)0 (- 17.8)

650 (313)

650 (313)

650 (313)

White Acids, alkalies, alcohols, amines, asphalt, aqueoussolutions, fats, glycerine, glycols, soap, water, steam.Food and pharmaceutical applications as determinedsuitable by the user.

Suitable for hot hydrocarbon gases and vapors, hightemperature cracking and reforming to 1000' F. in con-junction with hard faced valves. Recommendations willbe supplied on request.

Liquid light hydrocarbonsaromatic solvents, nitratingac ids.

s50 StickBul k

SS BulkGun Pak

t0 (*12.2)

- r0 (-231

- r0 (-23)

- r0 (-23)

350 fl77)350 fl77)350 (1 77)

350 fl77)

Cream Excellent dual resistance to petroleum products andwater. Particularly recommended for regular, premiumand high octane gasoline, kerosene, aviation and jetfuels, fuel blending ingredients, such as alkylate andplatformate, fuel and lubricating oils, mixtures of theseproducts and water in all proportions. Usable to400' F. in non-oxidizing atmospheres.

Approved under specification MIL-G-60328 "Grease,Plug Valve, Gasoline and 0il Resistant."

Strong acids and alkalies.

Black numerals are'F.Blue numerals are "C.



l"

THERE ARE 3 WAYS TO SERVICE ROCKWELL

SEALANT MAINTENANCE

Periodic application of sealant to Rockwell Nordstrom Valves is the only recommended maintenance neces-

sary under normal conditions. Sealant is essential to the proper operation of the valve. As the actual softbearing seat of the valve, it requires replacement when depleted due to conditions of temperature, pressure orfrequency of service.

Sealant maintenance means injecting enough sealant into a valve to provide a sealant film between taperedplug and body to minimize sticking.

MANUAL INJECTION

Stick sealants and tube sealants are used for manual injection. (Note: only Sealant No. 234 is available in tube form.)

Valve dimension pages in Rockwell Nordstrom catalogs show stick sizes required. Be sure to choose the proper Rockwell

Sealant for the service considering line product, pressure and temperature.

How to inject Sealant manually:

1. Remove Rockwell fitting or lubricant screw.

2. Insert Rockwell Sealant from the tube into the stem or choose the correct size of Rockwell Sealant stick and place it intothe stem.

3. Replace the fitting and screw down with a wrench until the sealant system is filled completely. This isdetermined by the resistance produced by the sealant pressure. Larger valves will require several sticksor tubes of sealant due to the capacity of their sealant systems.

4. Continue to add sealant until the plug lifts (sometimes with a hissing sound) indicating the sealant systemis full. When the plug lifts, efiort to turn the lubricating screw will be noticeably reduced.

5. If the plug fails to respond or continues to be difficult to turn, check "Valve Maintenance Procedures,"Catalog V-175.

ROCKWELL FITTING AS A SEALANT SCREW

The one piece Rockwell Fitting in Nordstrom Valves can also be used to maintain sealant pressure betweenmechanical injection periods if used as a sealant screw. After the valve is properly lubricated, remove the lubri-cant screw, insert another stick of sealant and screw the fitting down until the fitting threads are totally en-

gaged in the stem. The fitiing will then extend one or two inches, providing that much more sealant capacityin the stem. The additional sealant capacity can be used as an auxiliary reservoir for further lubrication. Thevalve can then be pressurized by screwing in the fitting as a sealant screw as explained under "Manual Injec-tion." When the fitting is finally turned into the valve as far as it will go, it indicates additional sealant shouldbe added.

IMPORTANT: EXTREME CAUTION SHOULD BE TAKEN TO PREVENT ANY FOREIGN MATTERFROM ENTERING THE ROCKWELL NORDSTROM VALVE'S SEALANT SYSTEM.

V/

v

Y.,



NORDSTROM VALVES

HAND GUNFor installations with.valv-es requiring frequent service, a hand oper-ated Rockwell400-D:.'.-^1 n;+;;";"d;"hc Hand Gun is recom_mended"This gun permits-speeai". .".tl"irg and also prevents waste ofseatant and over filling of valves. F;. ;;;:,.no"t*Jia06_; H:'" pressure Hr.,d G.rr.jils,

request catalog V-120

How to inject SEALANT with a Rockwell 4OOD hand gun:

3,:";"::::j::::j":..?i: ,l _,,J;,

,:,"u size orGun pak for the 400_D Hand Gun;f ffi;T : T i:l f :' 1':T :T t:' .il" Fii;;"'# ;[*# #:il$ll;il,l J?l;", tJ's

but ton hea d coupre. ",", rn"";;;;;ilrTffi ff ;i: ffi:t?,illustrated below).

;:;:ll; coupler should not be attached or detached whire gun is under

STEP #t: Start coupler onto the fitting until the fittrng headstops at the check valve (approx. half way).

end of

REASONABLE CARE of sealant equipment will pay dividends in maintaining performance.

3' rnject sealant by hand pumping the40O-Dgun as long as the needre on the pressure gauge climbs steadily. Thisshould be continued u: L";t;i;;;i;" *itt trt " o.".."." ""a,,:l,l-;. A; #;;;h pressure point on the gauge,the needle will "drop-bu"L';trt",.irrJft,rg.r.r-."uts

indicating.a fully p.;..;;i;'r-".r"-. This point can arso befelt when the pumping

"nott rtiit t?' iil*r"""irr-"8",r111

""1rr"ri'irr"l.-"J""i*ore and injecting shourd bestopped at this point'- The plug tiro,,ii ti,"n be turned to-check ;h;.+; ;iof,#il. Addirional sealant can thenbe injecred to purge the line pil;; Lfi.r,i.,utuliii""irr" ,i*_ if necessary.

' :iiH ;irl"XlltH:##JT:i::ifiT'E:1i:: $iiu:"'. .,' ;;. gun's gauge rarrs to rine pressure arter each stroke,

6)4n

\t

1.

2.3.

STEP #2:Lift up genfly on the backcou pler. STEP #3: pull coupler onto the fitting with a genile stiding movement.

TOPCONNECTIONFOR RECESSEDOR BURIEDVALVES

11



3 WAYS TO SERVICE ROCKWELL

ROCKWELL HYPREGUN

Where a large number of valves are in service, the Rockwell Hypregunis recommended. It is filled by using bulk 5 quart ('4.7 liters) sealant

cans which are loaded directly into the Hypregun. It is self-priming, airoperated and is designed to meet extensive field maintenance require-

ments. For in-formation, request Catalog V-118 "Rockwell Hypregunfor Servicing Rockwell Nordstrom Valves."

How to inject SEALANT with a Hypregun:

1. Choose the proper sealant in a 5 quart ( 4.7 liters) can and load it into the Hypregun'

2. Attach the button head coupler as illustrated in Step 2 Hand Gun (page 11) '

3. Note the same procedure as Step 3 under Hand Gun (page 11) '

NORDSTROM VALVES(continued)

Y

V/

eQJN

FREQUENCY OF SEALANT INJECTION

1. Service whenever opening or closing: valves on all hotservices, valves handling corrosive fluids or gases' gas

drips or sand drains and valves very infrequently used,

such as on domestic gas distribution systems,

2. Service each tour: valves on drilling-mud lines.

3. Service weekly: valves installed in refineries' gasolineplants, compressor plants and processing plants of anynature.

4. Service monthly: valves on gas, crude and productstransmission lines.

5. Valves on crude, lube oil or vegetable oils require less

frequent attention.

NOTES_GENERAL1. Sealant is essential to the proper operation of the valve.

2. Maximum valve performance in corrosive or erosive service is dependent upon the proper

selection of sealant and the material construction of the valve'

3. Consider only sealants 147 and 660 for nitrating acids or mixed acids.

4. On severe services, valves should be lubricated with proper sealant prior to shipment'

t2

v



\r/

\-

USE ROCKWELL STEM PACKINGFOR ROCKWELL-NORDSTROM HYPRESEAL VALVES

HYPRESEAL STEM PACKING --For seatins stem onty.

_. Hypre-seal stem packing is a plastic composition containing a

fibrous filler. It is used to seal the stems of Hypreseal valv;sand, is injected through the packing injection fittings on Hypre-seal valve bodies. Stem Packing 904 was developed for lowtemperature service. Stem Packing 901 is a general servicepacking and is used in all vaives unless a special packing isspecified due to a need for chemical resistance, low tempera-ture. etc.

Not a sealant,

Stem Packing 901 is available in sizes BB, CC, andDD and ispacked in boxes containing 24 sticks. Size AA is available in 24"length only. Data sheets in the valve catalogs show the sizestick needed for each valve confisuration and size.

*Very high temperatures will causethe gradual dissipation ofthe plastic base ofa stem packing. Addition of more packing will become necessary after prolongedexposure until enough fibrous material forms a permanent seal at elevated temperatures.

How to repack Hypreseal Valves with Plastic Stem packing:

1. Remove packing injector screw" In-sert a new stick of Rockwell stempacking into the fitting.

2. Replace packing injector screw Tighten the packing injector screwto inject packing around the stem.

WHAT STEM PACKING TO USE

PACKINGNUMBER

TEMPERATURE RANGEFROM TO COLOR PRINCIPAL SERVICES UNSUITABLE FOR

901-30oF, and up" Black Most services including petroleum products,

salt solutions, and alkalies'and acids withina PH range ol 2 to 10,

Ammonia, alcohols, amines,strong acids, and alkalies.

904 -85'F, 2500F. DarkBrown

Very low temperature natural gas and othergas phase services which are not chemicallyagg ressrve,

Ammonia, alcohols, aminesstrong acids, and alkalies.

\r-

13



R4 · IN ROCKWELL.NORDSTROM AND DYNAMIC BALANCE VALVES ROCKWELL SEALANTS Rockwell Sealants are...

Documents

Transcript of R4 · IN ROCKWELL.NORDSTROM AND DYNAMIC BALANCE VALVES ROCKWELL SEALANTS Rockwell Sealants are...