Diaphragm Differential Pressure Gauges For Liquids & Gases

0-5″ H2O to 0-50 PSID & 0-5 to 0-300 PSID

  • Rugged, weatherproof design
  • Gauge, switch and transmitter versions
  • Popular in filtration, flow and level measurements
  • For Barton Replacement see 1516 below or 1536

Specifications: Diaphragm DP Gauges

Model

DP Range Min

DP Range Max

Max Line Pressure

Max Line Temperature

Accuracy

Electrical Availability

Specifications,
Instructions & Drawings

1502 DG

PSID 0-8
bar 0-0.6
KPA 0-60

PSID 0-300
bar 0-20
KPA 0-2000

3000 psig
(200 bar)

200°F (93°C)

2%

No Electrical

View Model Page →

1516 DG/DGS/DS/DGT/DT

PSID 0-1
bar 0-0.07
KPA 0-7
In. H2O 0-30
mmH2O 0-700
kg/cm2 0-0.07
SQ. RT. Contact us

PSID 0-50
bar 0-3.5
KPA 0-350
In. H2O 0-1400
mmH2O 0-35000
kg/cm2 0-3.5
SQ. RT. Contact us

1500 psig
(100 bar)

200°F (93°C)

2%

1 or 2 Switches
Nema 4X Enclosure
Transmitter

View Model Page →

1518 DG/DGS

PSID 10-0-10
bar 0.7-0-0.7
KPA 70-0-70
In. H2O 275-0-275
kg/cm2 0.7-0-0.7

PSID 50-0-50
bar 3.5-0-3.5
KPA 350-0-350
In. H2O 1400-0-1400
kg/cm2 3.5-0-3.5

1500 psig
(100 bar)

200°F (93°C)

2%

1 or 2 Switches
Transmitter
Nema 4X Enclosure

View Model Page →

1533 DGS/DS/DGT/DT

PSID 0-8
bar 0-0.6
KPA 0-60
In. H2O 0-225
Ft. H2O 0-18
kg/cm2 0-0.6
SQ. RT. Contact us

PSID 0-300
bar 0-20
KPA 0-2000
In. H2O 0-8000
Ft. H2O 0-680
kg/cm2 0-20
SQ. RT. Contact us

3000 psig
(200 bar)

200°F (93°C)

2%

1 or 2 Switches
Transmitter
Nema 4X Enclosure

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1831 DG/DGS

PSID 0-0.2
bar 0-0.02
KPA 0-2
In. H2O 0-5
Ft. H2O 0-0.5
mmH2O 0-130
kg/cm2 0-0.02
SQ. RT. Contact us

PSID 0-8
bar 0-0.6
KPA 0-60
In. H2O 0-225
Ft. H2O 0-18
mmH2O 0-6000
kg/cm2 0-0.6
SQ. RT. Contact us

150 psig
(10 bar)

200°F (93°C)

2%

1 or 2 Switches
No Enclosure

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1833 DGS/DT/DGT

PSID 0-0.2
bar 0-0.02
KPA 0-2
In. H2O 0-5
Ft. H2O 0-0.5
mmH2O 0-130
kg/cm2 0-0.02
SQ. RT. Contact us

PSID 0-8
bar 0-0.6
KPA 0-60
In. H2O 0-225
Ft. H2O 0-18
mmH2O 0-6000
kg/cm2 0-0.6
SQ. RT. Contact us

150 psig
(10 bar)

200°F (93°C)

2%

1 or 2 Switches
Transmitter
Nema 4X Enclosure

View Model Page →

1835 DG/DGS

PSID 0.4-0-0.4
bar 0.03-0-0.03
KPA 3-0-3
In. H2O 11-0-11
mmH2O 280-0-280

PSID 8-0-8
bar 0.6-0-0.6
KPA 60-0-60
In. H2O 225-0-225
mmH2O 6000-0-6000

150 psig
(10 bar)

200°F (93°C)

2%

1 Switch
No Enclosure

View Model Page →

**NEMA 4X switch models have a 1/2″ NPT conduit port as standard (all others have 1/4″ NPT standard).
A DIN  43650A-PG11 with mating connector is optional, rated IP65 & NEMA 4X.

*Ranges available by diaphragm material: Fluorosilicone: 0-10 to 0-300 psid; Buna: 0-10 to 0-300 psid; EPDM: 0-15 to 0-300 psid; Viton: 0-25 to 0-300 psid

 D=Diaphragm   G=Gauge   S=Switch   T=Transmitter

Dimensions

Features

Diaphragm Differential Pressure Gauges

These diaphragm sensor differential pressure gauges measure the pressure difference between two points. Acting in the place of two pressure gauges, these units allow for one simple reading on an easy-to-read scale. Popular in filtration, flow and level applications, they are a low cost alternative to bourdon tube and bellows designs.

Our 1516 Series models are our most popular diaphragm differential pressure gauge design. They combine a highly-sensitive sensor with high line pressure capabilities.

  • Pressure body and wetted parts: aluminum, brass & stainless steel
  • Dial sizes: 2.5″, 3.5″, 4.5″ & 6″
  • Porting locations: In-line, back & bottom
  • Mounting: Panel, wall & pipe

Our 1800 Series diaphragm differential pressure gauge models are our most sensitive sensor designs. While being sensitive they also handle high line pressures up to 150 psi!

 

Switches, Relays, Transmitters

A variety of reed switches and relays can accompany these diaphragm differential pressure gauges, or the sensor can be supplied on its own, without a dial. SPST switches are offered normally open (N.O.) or normally closed (N.C.). SPDT reed switches also are available.

DPDT relays are offered for high inductance applications, such as those incorporating motors or solenoids. Transmitters offer a current or a voltage output. More information on switches, relays and transmitters.

Note: Select these diaphragm gauge models for air or gas applications or where fluid migration from the high to low pressure ports cannot be tolerated. Avoid applying reverse pressure to heavy-duty diaphragm differential pressure gauge models. This can damage the diaphragm sensor.

 

WARNING: This product contains Nickel, a chemical known to the State of California to cause cancer. For more information go to: www.p65warnings.ca.gov

Photos: DP Diaphragm

Diaphragm Family

Port Options

Top Vent Ports

WARNING: Some of our products contain Nickel, a chemical known to the State of California to cause cancer. For more information go to: www.p65warnings.ca.gov