DIFFERENTIAL PRESSURE GAUGES · Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)...

DIFFERENTIALPRESSURE GAUGES

Where Growth with Excellence is a way of Life..!

Features

Specifications

n

n

n

n

n

n

n

Bellow type constructionReference Standard: EN - 837All SS internalsChemical seal unit (optional) for process suitabilityAccuracy ±1% FSD A set of two stainless steel bellows mounted on a force balance enables direct reading of the actual differential pressure.Each Bellow of the pressure Gauge can withstand the full static pressure without any damage or shifting being caused to the instrument.

Dial

Pointer Light weight, micrometer adjustable Sensing element BellowSensor Material & Wetted Parts SS316 / SS316L / Monel / Hastelloy-CMovement SS304 / SS316Connection ½" NPT (M) as standard (other on request)Range Minimum 0 to 1000 mm WC; Higher range as per

customer requirementStatic Pressure Upto 60 kg/cm2g, Higher Static Pressure on request Accuracy ±1% FSD Blow out disc Provided (top of the case) Temperature suitability Ambient (-)20°C to 60°C, Media 100°CTemperature Effect Within ±0.4% FSD/10°C, when temperature changes from

reference temperature of 20°COptional Chemical seal units with Capillary

Liquid filled case External Knob for zero settingCEAtex

150 mm, Aluminium, white background, black markings

Case SS304 / SS316 with bayonet bezel Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529) Window Safety glass (Shatter proof / Toughened glass)

MODEL : DPBL (Dry Case)LFDPBL (Liquid Filled Case)

Differential Pr. Gauges - Bellow Type

SFDPBL (Solid Front, Dry Case)

LSDPBL (Liquid Filled, Solid Front Case)

Under Technical Collaboration with M/s. Gauges Bourdon, France

The parameters mentioned here are the standard specifications / values generally used for most of the process applications. Any other specification not

appearing here also can be provided as per customer requirement. For higher temperature services above 100°C, we recommend to provide sufficient Impulse Tubing to bring down the fluid temperature .

DP Gauge with Diaphragm Seal& Capillary

www.generalinstruments.co.in www.general-gauges.com5210/1

7 R

EV.:

00

Ordering Information

MODEL

MOUNTING

DIAL SIZE

CASE

150 150 mm

S

Y

P

Bottom Entry, Surface Mounting

Bottom Entry, 2" Pipe Mounting

Back Entry, Flush Panel Mounting

SS 304

SS 316

S4S

S6S

UNIT

OPTIONATX

BOB

CLB

CEM

DC2

DUS

EXZ

GLY

NAC

OXY

VCP

L

CSU

ACC

XXX

Atex

Back blow out disc

Colour Band

CE marking

Silicone Oil filled Case

Dual Scale

External Knob for Zero Adjustment

Glycerine filled Case

NACE

O2 Cleaning

Vacuum Protection

Nil

Chemical Seal

Accessory

Other

KSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)

Other (Please specify)

RANGEPlease Specify

STATIC PRESSURE

Please Specify

MOVEMENTS4S

S6S

SS 304

SS 316

SENSOR

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C

Other (Please Specify)

WETTED PARTS

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C


e.g. For 1/2"NPT(M), Code: T15NTM For M20x1.5 (F), Code: TM20CF

CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: DPBL-Y-150-S4S-S6S-S6S-S4S-T15NTM-(0-2)-BAR-25bar.g-L

BASIC MODEL CODEDPBL

LFDPBL

SFDPBL

LSDPBL

Dry Case

Liquid Filled Case

Solid Front, Dry Case

Liquid Filled, Solid Front Case

www.generalinstruments.co.in www.general-gauges.com53 10/1

7 R

EV.:

00

Features

Differential Pr. Gauges Diaphragm type

n General purpose differential pressure measurement

n Sensing Element of Diaphragm

n Wetted Parts in SS316 / SS316L / Monel / Hastelloy-C

n Non-wetted parts & Case in Stainless Steel

n Accuracy

n Span of dial marking at 270 Deg Angle, even for very low ranges

(other on request)

±1.6% FSD

SpecificationsDial 100mm / 150 mm, Aluminium, white background, black markingsCase SS304 as standard (SS316 on request) with bayonet bezelProtection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)Window Safety glass (Shatter proof / Toughened glass)Pointer Pointer Light weight, micrometer adjustableSensing element DiaphragmWetted Parts SS316 / SS316L / Monel / Hastelloy-C (other on request)Movement SS304 as standard (SS316 on request)Connection ½" NPT (M) as standard (other on request)Range Any range between 0 to 160 mm WC & 0 to 4 kg/cm2(DP) / Higher Range on requestStatic Pressure Upto 60 kg/cm2g, Higher Static Pressure on requestAccuracy ±1.6% FSDBlow out disc Provided (top of the case)Temperature suitability Ambient (-) 20°C to 60°C, Media 100°CTemperature Effect Within ±0.5% FSD/10°C, when temperature changes from

reference temperature of 20°COptional Liquid filled case (for Range 0 to 1000mmWC & above only)

CEAtex

MODEL : DPDS (Dry Case)LFDPDS (Liquid Filled Case)

SFDPDS (Solid Front, Dry Case)

LSDPDS (Liquid Filled, Solid Front Case)





7 R

EV.:

00


MODEL

UNIT

KSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)


RANGEPlease Specify

OPTIONATX

BOB

CLB

CEM

DC2

DUS

GLY

NAC

OXY

VCP

L

ACC

XXX

Atex

Back blow out disc

Colour Band

CE marking


Dual Scale


NACE

O2 Cleaning

Vacuum Protection

Nil

Accessory

Other

STATIC PRESSURE

Please Specify

Sample Model Code: DPDS-Y-150-S4S-S6S-S6S-S4S-T15NTM-(0-1000)-MMW-4kg/cm2.g-L

MOUNTING

DIAL SIZE

CASE

150 150 mm100 100 mm

V

S

Y

Bottom Entry, Local Mounting



SS 304

SS 316

S4S

S6S

MOVEMENTS4S

S6S

SS 304

SS 316

SENSOR

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C


WETTED PARTS

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C



CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

BASIC MODEL CODEDPDS

LFDPDS

SFDPDS

LSDPDS

Dry Case

Liquid Filled Case

Solid Front, Dry Case

Liquid Filled, Solid Front Case


7 R

EV.:

00

Features

n General purpose differential pressure measurement


n Wetted Parts in SS316 / SS316L / Monel / Hastelloy-C


n Accuracy

(other on request)

±1.6% FSD

MODEL : DPDH (Dry Case)

SpecificationsDial 100mm / 150 mm, Aluminium, white background, black markingsCase SS304 as standard (SS316 on request) with bayonet bezelProtection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)Window Safety glass (Shatter proof / Toughened glass)Pointer Pointer Light weight, micrometer adjustableSensing element DiaphragmWetted Parts SS316 / SS316L / Monel / Hastelloy-C (other on request)Movement SS304 as standard (SS316 on request)Connection ½" NPT (M) as standard (other on request)Range Any range between 0 to 1000 mm WC & 0 to 6 kg/cm2(DP)Static Pressure Upto 250 kg/cm2g, Higher Static Pressure on requestAccuracy ±1.6% FSDBlow out disc Provided (top of the case)Temperature suitability Ambient (-) 20°C to 60°C, Media 100°CTemperature Effect Within ±0.5% FSD/10°C, when temperature changes from

reference temperature of 20°COptional Liquid filled case

CEAtex

LFDPDH (Liquid Filled Case)

High Static Pr. Differential Pr. Gauges

Diaphragm type, High Static Pressure





7 R

EV.:

00

MOUNTING


MODEL

DIAL SIZE

OPTION

STATIC PRESSURE

100 100 mm 150 150 mm

UNIT

CASES4S SS 304S6S SS 316

WETTED PARTSS6S SS 316S6L SS 316LMN4 MonelHCC Hastelloy-CXXX Other (Please Specify)

KSC kg/cm2(DP)BAR bar(DP)PSI psi(DP)KPA kPa(DP)MPA MPa(DP)MBR mbar(DP)MMW mm WC(DP)CMW cm WC(DP)MWC m WC(DP)INW inch WC(DP)MMH mm Hg(DP)CMH cm Hg(DP)INH inch Hg(DP)XXX Other (Please specify)

S Bottom Entry, Surface MountingY Bottom Entry, 2" Pipe Mounting

SENSORS6S SS 316S6L SS 316LMN4 MonelHCC Hastelloy-CXXX Other (Please Specify)

MOVEMENTS4S SS 304S6S SS 316

ATX AtexCLB Colour BandCEM CE markingDC2 Silicone Oil filled CaseDUS Dual ScaleGLY Glycerine filled CaseNAC NACEOXY O2 CleaningVCP Vacuum ProtectionL NilACC AccessoryXXX Other

Please Specify

RANGEPlease Specify


CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: DPDH-Y-150-S4S-S6S-S6S-S4S-T15NTM-(0-2)-BAR-25bar.g-L

BASIC MODEL CODEDPDH

LFDPDH

Dry Case

Liquid Filled Case


7 R

EV.:

00

Features

Differential Pr. Gauges Diaphragm type

n Differential pressure measurement with Accuracy of ±1% FSD


n Wetted Parts in SS316 / SS316L / Monel /


n Low Range & High Static Pressure

n Span of dial marking at 270 Deg Angle

other on request

SpecificationsDial 100 mm* / 150 mm, Aluminium, white background, black markingsCase SS304 as standard (SS316 on request) with bayonet bezelProtection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)Window Safety glass (Shatter proof / Toughened glass)Pointer Pointer Light weight, micrometer adjustableSensing element DiaphragmWetted Parts SS316 / SS316L / Monel / other on requestMovement SS304 as standard (SS316 on request)Connection ½" NPT (M) as standard (other on request)Range Any range between 0 to 250 mm WC & 0 to 10,000mmWC(DP) / other on requestStatic Pressure Up to 100 kg/cm2.g (higher on request)Accuracy ±1% FSDBlow out disc Provided (top of the case)Temperature suitability Ambient (-) 20°C to 80°C, Media 100°CTemperature Effect Within ±0.5% FSD/10°C, when temperature changes from

reference temperature of 20°COptional CE

Atex

±1%FSD Accuracy

MODEL : DPDX




www.generalinstruments.co.in www.general-gauges.com

*Note: 100 mm dial is not available in Flush Panel Mounting

5810/1

7 R

EV.:

00


MODEL

MOUNTING

DIAL SIZE

CASE

100 100 mm*

S

Y

P



Back Entry, Flush Panel Mounting*

SS 304

SS 316

S4S

S6S

UNITKSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)


RANGEPlease Specify

OPTIONATX

CLB

CEM

DUS

NAC

OXY

VCP

L

ACC

XXX

Atex

Colour Band

CE marking

Dual Scale

NACE

O2 Cleaning

Vacuum Protection

Nil

Accessory

Other

STATIC PRESSURE

Please Specify

MOVEMENTS4S

S6S

SS 304

SS 316

SENSOR

S6S

S6L

MN4

XXX

SS 316

SS 316L

Monel


WETTED PARTS

S6S

S6L

MN4

XXX

SS 316

SS 316L

Monel



CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: DPDX-P-150-S4S-S6S-S6S-S4S-T15NTM-(0-1000)-MMW-20kg/cm2.g-L

BASIC MODEL CODEDPDX Differential Pressure Gauge

www.generalinstruments.co.in www.general-gauges.com

150 150 mm

*Note: 100 mm dial is not available in Flush Panel Mounting

59 10/1

7 R

EV.:

00

Features

Specifications

Differential Pr. Gauges-Capsule Type

n

n

n

n

n

Low differential pressure measurement with high accuarcySensing element- Capsule in SS316LScrewed connectionAccuracy ±1% FSD General stainless steel capsule differential pressure gauges are designed for measuring small differential pressures on clean & dry air or gas system

Dial 100 mm / 150 mm, Aluminium, white background, black markings

Case SS304 / SS316 with bayonet bezel Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529) Window Safety glass (Shatter proof / Toughened glass) Sensing in SS316, Connection ½ " NPT (M) as standard (other on request)Range Any range between 0 to 60 mm WC to 0 to 1000 mmWCStatic Pressure 10 times the range (Maximum) Accuracy ±1% FSD Temperature Suitability Ambient (-)20°C to 60°C, Media 80°C Note Capsule type DP Gauges are recommended for non-corrosive,

clean, clear (colourless) & dry Gases / Air onlyOptional CE

Atex

Capsule SS316L

MODEL : DPCP


The parameters mentioned here are the standard specifications / values generally used for most of the process applications. Any other specification not appearing here also can be provided as per customer requirement.


7 R

EV.:

00


MODEL

DIAL SIZE

MOVEMENT

100 100 mm

150 150 mm

STATIC PRESSURE

Please Specify

OPTIONATX

CLB

CEM

DUS

OXY

VCP

L

ACC

XXX

Atex

Colour Band

CE marking

Dual Scale

O2 Cleaning

Vacuum Protection

Nil

Accessory

Other

CAPSULE

WETTED PARTSSS316

SS316L

S6S

S6L

SS316

SS316L

S6S

S6L

BASIC MODEL CODEDPCP DP Gauge, Capsule type

RANGEPlease Specify

CASESS304

SS316

S4S

S6S

SS304

SS316

S4S

S6S

MOUNTINGV

S

Y

P





UNITKSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)



CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: DPCP-S-150-S4S-S6S-S6S-S4S-T15NTM-(0-60)-MMW-500mmWC.g-L


7 R

EV.:

00

Features

Specifications

Differential Pressure Gauges-

Diaphragm/ Piston Type

n Magnetic Diaphragm / Piston type constructionn Static pressure 35 bar & 100 barn Body block - Aluminium / SS316 / SS316Ln Screwed connectionn Accuracy ±2% FSD (Ascending) n Unit of measurement - kg/cm², bar, mmWC

Dial 100 mm / 150 mm, Aluminium, white background, black markings

IS:13947 part I / IEC:60529Window Safety glass (Shatter proof / Toughened glass)

Switching : SPDT (Micro Switch)Voltage : 230V ACRating Switch : 1 SPDT & 2 SPDTCurrent : 5 A (max)

Case & Bezel SS304 weatherproof to IP-67(Dry Case) / IP-68 (Liquid Filled Case) as per

Sensing Diaphragm in Viton / Piston in SSBody Material Aluminium / SS316 / SS316 L Magnet CeramicSpring SS316Connection ¼" NPT (F) as standard (other on request)Range Minimum span of Range 50 mmWC

(500 mmWC with Switch )Static Pressure 35 bar & 100 barAccuracy ±2% FSD (on Ascending Side)Blow out disc Provided (top of the case) Temperature suitability Ambient (-)20°C to 60°C, Media 80°C Optional Liquid filled Case (minimum Range 0 to 1000mmWC)

Filling not available with Switch

CEAtex

MODEL : DPMH (Dry Case)

LFDPMH (Liquid Filled Case)



DP Gauge with Micro Switch


7 R

EV.:

00


MODEL

RANGEPlease Specify

STATIC PRESSURE

Please Specify

OPTION

ATX

CLB

CEM

DC2

DUS

GLY

VCP

OXY

1DT

2DT

L

ACC

XXX

Atex

Colour Band

CE marking


Dual Scale


Vacuum Protection

O2 Cleaning

1SPDT Micro Switch

2SPDT Micro Switch

Nil

Accessory

Other

MOUNTING

DIAL

ELEMENT

100 100 mm

150 150 mm

V

S

Y

P





DVT

PS6

P6L

WETTED PARTS

CASE

Diaphragm in Viton

Piston in SS316

Piston in SS316L

SS 304

SS 316

S4S

S6S

UNITKSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)


Aluminium

SS 316

SS 316L

ALM

S6S

S6L


CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: DPMH-P-150-S4S-DVT-S6S-T15NTM-(0-600)-MMW-25bar.g-L

BASIC MODEL CODEDPMH

LFDPMH

Dry Case

Liquid Filled Case


7 R

EV.:

00

“General” make Mag-DP Gauges are designed for measuring very low differential pressures. Minimum measuring Range offered isas low as 0 to 6 mmWC(DP). The Mag-DP Gauges are suitable for measuring fan & blower pressures, filter resistance, furnace draft,and pressure drop across orifice plates, etc. Mag-DP Gauges are designed to suit Flush Panel Mounting or Surface (Projection)Mounting or Yoke (2” Pipe) Mounting as per requirement. For maximum accuracy, it is recommended to mount the Gauge in Verticalposition. Suitable mounting accessories are provided with each Gauge.

MODEL: DPMG

Mag-DP - Differential Pressure Gauges

Mounting Orientation Diaphragm in vertical position(Consult factory for other position orientations).

Size Nominal Size 4" (100 mm) & Case OD 4-1/2” (114 mm)Dial Aluminium, white background with Black markingsHousing Die cast Aluminum Case & Bezel, with Acrylic cover, Weather proof to IP-65 as per IEC-60529.

Exterior finish in coated Gray, withstands 168 hour Salt spray Corrosion Test.Sensing Element Silicone Rubber diaphragm with integrally molded O-ring

For Hydrogen Service Diaphragm shall be Buna-N.Process Connections 1/8˝ NPT(F) duplicate HP & LP Connections - One Pair at side & the other at back/rear.

(1/8"NPT Plugs shall be provided for the unused connections)Accuracy ±2% of FSD for Range 0 to 25 mmWC & above at 24 DegC

±3% of FSD for Range 0 to 10mmWC to 15 mmWC at 24 DegC±4% of FSD for Range 0 to 6, -3 to 3, -5 to 5 mmWC at 24 DegC

Pressure Limits (-)500 mm Hg Vacuum to 1 bar.g PressureOver pressure Relief plug opens at approximately 25 psig (1.72 bar)Temperature Limits 20 to 140°F (-6.67 to 60°C).Weight Approx 500 gmStandard Accessories Two 1/8˝ NPT Male plugs for duplicate process connections

Two 1/8˝ pipe thread to rubber tubing adaptorsThree flush mounting adapters & suitable screws.

Specifications

for low Differential Pressure measurement

Features

n Diaphragm operated, with magnetic helical Movementn Suitable for measuring very low differential pressuren Minimum measuring Range as low as 0 to 6 mmWC(DP)n Silicone Rubber diaphragm (Buna-N for Hydrogen Service)n Body material – Aluminium

Working Principle

The Mag-DP Gauge consists of a Silicone Diaphragm with integrally moulded O-Ring. The Diaphragm is locked and sealed in its position with a sealing plate & retaining ring. There is a Range Spring to which Diaphragm is connected. Depending upon the applied pressure, the displacement of the Diaphragm is transferred to the Range spring. This causes the motion of the magnet provided at one end of the Range spring. The change in magnetic field rotates the Helical movement which also is made with magnetic material and mounted on frictionless jewelled beading. The pointer is fixed on the helical movement. Thus the rotation of the helical movement is directly indicated by the Pointer above the Dial.


MODEL : DPMG-

MountingSurface

2" Pipe

Flush Panel

S

Y

P

CONNECTIONBuna‐N Diaphragm insteadof Silicone Diaphragm

BUN

Atex

CE

Nil

ATX

CEM

L

RANGEPlease Specify

UNITmmWC

cmWC

inchWC

MMW

CMW

INW

mbar

Pascal

MBR

PAS

Sample Model Code: DPMG-P-(0-10)-MMW-L


Any special requirement on request


7 R

EV.:

00

GENERAL has been designing and manufacturing high quality Differential pressure indicating switches to suit to most of the industrial application for accurate control of the process equipments. Rigorous and continuous tests are conducted for design and quality conformance.

Indicating Differential Pressure Switch

Specifications

MODEL : IDMSB (Micro switch in Bellow type)IDNSB (NAMUR switch in Bellow type)IDNSD (NAMUR switch in Diaphragm type)

n Indicating Differential Pumps, Compressors, Lubrication Systems, Turbines, Generators, Boilers, Furnaces etc. in industries such as Chemical, Fertilizer, Ferrous & Non- ferrous metal, Pulp & Paper, Power, Waste Water Treatment, Refinery & Petrochemical, Synthetic Fibre, etc.

Pressure Switches are design to use in

Dial 100/ 150 mm (for diaphragm) & 150mm (for Bellow), Aluminium dial, white background, black markings

Case SS304 / SS316 with bayonet bezel (for WP enclosure - NAMUR & Micro switch / FP enclosure - NAMUR switch only)Die Cast Aluminium (for Micro switch with FP enclosure only)

Protection Weatherproof to IP - 68 (IS:13947 part I / IEC:60529) Flameproof to IIA, IIB (equivalent to NEC Cl. 1, Div. 2, Gr. C & D)

Window Safety glass

Sensing element Bellow/ Diaphragm Sensor Material & Wetted Parts SS316 / SS316L / Monel / Hastelloy-C / other on request

Cable Entry ½” NPT Switch 1 SPDT / 2 SPDT, Snap acting micro-switch

Rated 5A @ 230 VAC / 3A @ 28 VDC Inductive Contacts (NAMUR), Single or Double, adjustable between 10% & 90% of the Range, Nominal Voltage, 8.32 V DC, Operating Voltage, 5 to 25 V DC

Movement Brass / SS304 / SS316Set Point Adjustable throughout the range Mounting Surface Mounting / 2" Pipe MountingProcess Connection 1/2” NPT (M) as standard. Other connections optionallyRange Minimum 0 to 250 mm WC(DP) for NAMUR switch in Diaphragm type

Minimum 0 to 2500 mm WC(DP) for NAMUR switch in Bellow typeMinimum 0 to 1kg/cm2(DP) for Micro switch in Bellow typeHigher ranges as per customer requirement

Static Pressure Upto 60 kg/cm2g, Higher on requestAccuracy Bellow type with Micro switch: ±1% FSD (for indication)

& ±2% FSD (for Switching)Bellow type with NAMUR switch: ±1% FSD (indication & switching)

Diaphragm type with NAMUR switch: ±1.6% FSD (indication & switching)Temperature suitability Ambient (-)20°C to 60°C, Media 100°CTemperature Effect Within ±0.5% FSD/10°C, when temperature changes from

reference temperature of 20°C Blow out disc Provided at top of the Case (not applicable for FP Die Cast Aluminium Case)Optional Diaphragm seal with Capillary

CE, Atex

(F)



Diaphragm type, with NAMUR switch & proof CaseWeather

Bellow type, with Micro switch, Flame proof Case & Diaphragm Seal

Bellow type, with Micro switch & Weather proof Case


7 R

EV.:

00


150 150 mm

DIAL SIZE

MOUNTING

Please Specify

RANGE

Please Specify

STATIC PRESSURE

OPTION1DT

2DT

1NR

2NR

FAB

F2C

FAT

CLB

CEM

DUS

NAC

OXY

VCP

CSU

ACC

XXX

UNITKSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)






(for Bellow type only)

V

S

Y

P

MOVEMENT

SS 304

SS 316

Brass

S4S

S6S

BRS

CASESS 304

SS 316

Die Cast Aluminium*

S4S

S6S

ALM

SENSOR

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C


WETTED PARTS

S6S

S6L

MN4

HCC

XXX

SS 316

SS 316L

Monel

Hastelloy-C



CONNECTION

Size Type

NPT

BSP

BSPT

JIS-PF

JIS-PT

Gas GS

R RR

Rp RP

Pitch 1.5 C

NPS

Male/ Female

Male

Female

1/4”Thread T

3/8”

1/2”

3/4”

1”

M20

Code

06

10

15

20

25

M20

Conn Code Code

NS

NT

BP

BT

PF

PT

Code

M

F

Sample Model Code: IDMSB-Y-150-S4S-S6S-S6S-S4S-T15NTM-(0-2)-BAR-25bar.g-2DT

BASIC MODEL CODEIDMSB

IDNSB

IDNSD

Micro switch in Bellow type

NAMUR switch in Bellow type

NAMUR switch in Diaphragm type

MODEL

1SPDT Micro Switch

2SPDT Micro Switch

NAMUR Switch, single

NAMUR Switch, double

Flame Proof Case - IIA/IIB

Flame Proof Case - IIC

Flame Proof Case - IIC (ATEX)

Colour Band

CE marking

Dual Scale

NACE

O2 Cleaning

Vacuum Protection

Chemical Seal

Accessory

Other

*Die Cast Aluminium Case applicable for

Micro switch with Flame proof version only.

Blow out disc shall not be applicable.


7 R

EV.:

00

Features

Specifications

Flow Indicator

n

n

n

n

Differential Pressure across Orifice Plate AssemblyWeld Neck Flange connectionUnit of measurement direct in terms of flow unitWeatherproof to IP – 68

Dial 100 / 150 mm , Aluminium, white background, black markings

Case SS304 / SS316 with bayonet bezel Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529) Window Safety glass (Shatter proof / Toughened glass)

Diaphragm or Piston (depending upon type of DPG)(other on request)

±1.6% FSD / ±2% FSD ascending (depending upon type of DPG)

(depending upon type of DPG)

Pointer Light weight, micrometer adjustable Sensing Bellow, Other wetted parts SS316 / SS316L / Monel / Hastelloy-C Movement SS304 / SS316Connection ½" NPT (M) as standard (other on request)Range Minimum 0 to 1000 mm WCStatic Pressure Upto 60 kg/cm2g, Higher Static Pressure on request Accuracy ±1% FSD / Blow out disc Provided (top of the case) Optional Flow Indicator with NAMUR / Micro switch also available

Three Valve Manifold in SS316, suitable SS tubing and associated instrument fittings

MODEL : DPFI

Design Conforms to ISA RP 3.2, DIN 1952, BS 1042, ISO-5167Types Square edge concentric, Quadrant edged, Conical entrance,

Eccentric, SegmentalPlate material SS304, SS316, SS316L as standard. Hastelloy-C, Monel,

PP, PVC, PTFE coated, etc. can be given on request. Orifice Bore In accordance with ISO-5167, BS-1042, ASME MFC 3M,

R.W.Miller, L.K.Spink, AGA-3Tag Plate In the same material as plate & is welded to orifice plate.

Tag plate integral to the Orifice plate (i.e. without welding) can also be offered as a special case.

Vent / Drain Vent or Drain holes are provided as per customer’s requirement. Not drilled for orifice bores smaller than 25.4 mm

Flange Union Weld neck, Slip on, Threaded, Socket welded with RF or RTJ facing Orifice flanges are in accordance with ANSI B16.36 with minimum flange rating of 300# for sizes up to 8” or male - female flanges in accordance with ANSI B16.5.

Pressure Tappings Corner tappings are recommended for sizes upto 1 ½”; Flange taps from 2" to 16"; D – D/2 taps for higher sizes.

Gasket SS spiral wound + CAF, SS spiral wound + Grafoil, SS spiral wound + PTFE are normally supplied as per process requirement. Other materials available on request.For RTJ flanges, the plate is fixed on the plate holder. The plate holder is in Soft Iron material & acts as a gasket.

Studs / Nuts ASTM A193 Gr.B7/A-194 Gr.2H as standard, Other material on request.

Jack Screw Carbon Steel ( C1038 heat treated )

Orifice Plate Assembly

Flow Indicator




7 R

EV.:

00


MODEL CODE FOR FLOW INDICATOR ASSEMBLY *

OCC

OEC

OQC

OSC

OSE

Conical Entrance

Eccentric

Quadrant Edge Concentric

Square Edge Concentric

Segmental

TYPE OF ORIFICE PLATE

PLATE MATERIALMonel 400

Hastelloy-B

Hastelloy-C

Titanium

Tantalum

PTFE

Polypropelyne


MN4

HCB

HCC

TTM

TAN

PTF

PPN

XXX

SS304

SS304L

SS316

SS316L

SS316Ti

SS321

SS316+PTFE

SS316L+PTFE

S4S

S4L

S6S

S6L

S6T

321

S6P

6LP

LINE SIZE / SCHEDULE

PLATE THICKNESS3.18mm1

TYPE OF FLANGESlip On

Socket Welded

Threaded

WN Welding Neck

FSO

FSW

FTH

FWN

DP RANGEPlease Specify

STATIC PRESSURE

Please Specify

FLOW RANGE & UNITPlease Specify

FLANGE MATERIALSS316L+PTFE

Monel 400

Hastelloy-B

Hastelloy-C

Titanium


6LP

MN4

HCB

HCC

TTM

XXX

SS304

SS304L

SS316

SS316L

SS316Ti

SS321

SS316+PTFE

S4S

S4L

S6S

S6L

S6T

321

S6P

FLANGE RATING / FACINGRating Code Facing Code

UNITKSC

BAR

PSI

KPA

MPA

MBR

MMW

CMW

MWC

INW

MMH

CMH

INH

XXX

kg/cm2(DP)

bar(DP)

psi(DP)

kPa(DP)

MPa(DP)

mbar(DP)

mm WC(DP)

cm WC(DP)

m WC(DP)

inch WC(DP)

mm Hg(DP)

cm Hg(DP)

inch Hg(DP)

Other (Please specify)PLATE THICKNESS

3.18mm1

PLATE THICKNESS3.18 mm

6.35 mm

9.52 mm

12.70 mm


OP1

OP2

OP3

OP4

XXX

Rating Code

½"

3/4"

1"

1-1/2"

2"

3"

150

300

600

900

1500

2500

A

B

C

D

E

F

RF

FF

RTJ

LT

LG

RF

FF

RJ

LT

LG

15

20

25

40

50

80

e.g. For 40 NB 300# RF flange, Model Code: 40BRF

BASIC MODEL CODEDPFI DP type Flow Indicator

Conn

Flange

Code

F

* Model Code for DPG to be specified separately, as per the type of DPG selected (Refer DPG Catalogues)

Sample Model Code: DPFI-OCC-S6S-OP1-FWN-50S80-F50BRF-S6S-(0-2500)-MMW-25bar.g-(0-100m3/Hr)

Size

½"

3/4"

1"

1-1/2"

2"

3"

Code

15

20

25

40

50

80

Schedule

Sch 40

Sch 80

Sch 160

Sch XXS


Code

S40

S80

S16

XXS

XXX

e.g. For 2” (50 NB), Sch 80 Pipe, Model Code: 50S80


7 R

EV.:

00

Pressure Gauges and Differential Pressure Gauges are manufactured in technical collaboration with M/s Gauges Bourdon, France. The same are manufactured and tested in accordance with EN : 837 standard. According to the said international standard, following tests are carried out to ensure the quality of Pressure Gauges. We can carry out following tests In-House at our manufacturing plant.

1. Visual Inspection 13. Safety Blow-out Test

2. Dimensional Verification 14. Thermal stability test at rated temperature

3. Accuracy Test 15. Temperature effect test

4. Hysteresis Test 16. Energy release test

5. Leak Test

6. Influence of Mounting Position

7. Degree of Protection

8. Effects of Mechanical Vibration

9. Effects of Mechanical Shock

10. Endurance test with Steady Pressure

11. Endurance test with Over Pressure

12. Endurance test with Cyclic Pressure

In-House testing facilities for Pressure & Differential Pressure Gauges

In House Test Facilities


7 R

EV.:

00

Pressure Conversion ChartTo

con

vert

pre

ssur

e fr

om o

ne u

nit t

o an

othe

r:1.

Sta

rt a

t col

umn

head

ing

with

uni

ts to

con

vert

fro

m.

2. M

ove

dow

n th

e sa

me

colu

mn

to n

umbe

r “1

”.3.

Mov

e ac

ross

this

row

to th

e co

lum

n w

ith u

nits

hea

ding

you

are

con

vert

ing

to.

4. M

ultip

ly th

e nu

mbe

r in

this

cel

l w

ith th

e va

lue

you

are

conv

ertin

g fr

om to

get

the

new

val

ue in

con

vert

ed u

nits

.

psi

atm

s.in

chm

mcm

oz/in

²K

g/cm

²in

chm

mcm

m

bar

bar

PaK

PaM

Pa

WC

Hg

10.

0681

27.7

170

3.8

70.3

816

0.07

042.

036

51.7

155.

1768

.95

0.06

896,

895

6.89

50.

0069

14.7

140

7.2

10,3

431,

034.

3023

5.1

1.03

329

.92

760

7610

131.

013

101,

325

101.

30.

1013

0.03

610.

0024

61

25.4

2.54

0.57

750.

0025

40.

0735

1.86

60.

187

2.48

80.

0024

924

8.8

0.24

90.

0002

5

0.00

1421

0.00

0097

0.03

941

0.1

0.02

270.

0001

0.00

289

0.07

350.

0073

50.

098

0.00

0098

9.8

0.00

980.

0000

1

0.01

421

0.00

0967

0.39

3710

10.

227

0.00

10.

0289

0.73

50.

0735

0.98

0.00

098

980.

098

0.00

01

0.06

250.

0042

51.

732

43.9

864.

41

0.00

440.

1273

3.23

20.

3232

4.31

0.00

431

431

0.43

10.

0004

3

14.2

20.

968

394.

110

001

1000

.122

7.6

128

.96

735.

673

.56

980.

70.

981

98,0

6798

.07

0.09

81

0.49

120.

0334

213

.61

345.

734

.57

7.85

80.

0345

125

.42.

5433

.86

0.03

393,

386

3.38

60.

0033

9

0.01

934

0.00

1316

0.53

613

.61

1.36

10.

310.

0013

60.

0394

10.

11.

333

0.00

1333

133.

30.

1333

0.00

0133

0.19

340.

0131

65.

358

136.

113

.61

3.1

0.01

360.

394

101

13.3

30.

0133

31,

333

1.33

30.

0013

3

0.01

450.

0009

870.

4012

10.2

11.

021

0.23

210.

0010

20.

0295

0.75

0.07

51

0.00

110

00.

10.

0001

14.5

040.

987

401.

910

,210

1021

232.

11.

0229

.53

750

751,

000

110

0,00

010

00.

1

0.00

0145

0.00

001

0.00

402

0.10

20.

0102

0.00

232

0.00

001

0.00

0295

0.00

750.

0007

50.

010.

0000

11

0.00

10.

0000

01

0.14

504

0.00

987

4.01

910

2.07

10.2

072.

321

0.01

020.

295

7.5

0.75

100.

011,

000

10.

001

145.

049.

869

4019

102,

074

10,2

0723

2110

.229

5.3

7500

750

10,0

0010

1,00

0,00

01,

000

1

WC

WC

Hg

Hg

2(N

/m)


7 R

EV.:

00

DIFFERENTIAL PRESSURE GAUGES · Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)...

Documents

Transcript of DIFFERENTIAL PRESSURE GAUGES · Protection Weatherproof to IP-68 (IS:13947 part I / IEC:60529)...