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Diaphragm Differential Pressure Gauges

DP Gauges FOR GASES & LIQUIDS

0-5" H2O to 0-50 PSID (Standard Diaphragm)
0-5 to 0-300 PSID (Heavy Duty Diaphragm)

 

Features

Check Rugged, weatherproof design
Check Gauge, switch and transmitter versions
Check Popular in filtration, flow and level measurements

Diaphragm differential pressure gauges

Specifications - Diaphragm DP GAUGES

How To Order

Model Differential
Pressure Range*
Maximum Line Pressure/
Temperature
Accuracy
FS
Ascending
Electrical
Available**
Specifications
PDF
Instructions
PDF
Drawing
PDF
Replacement
Parts
PDF
Standard Diaphragm Sensor
1516DG/DGS/DS/DGT/DT 0-1 to 0-50 psid
(0-0.07 to 0-3.3 bar)
1500 psig (100 bar)/200°F (93°C) 2% 1 or 2 switches
transmitter
Class 1 Div. 2

Download Download Download Download
1518DG/DGS 10-0-10 to 50-0-50 psid
(0.67-0-0.67 to 3.3-0-3.3 bar)
1500 psig (100 bar)/200°F (93°C) 2% 1 or 2 switches
Class 1 Div. 2
Download   Download Download
1831DG/DGS 0-5 H2O to 0-8 psid
(0-125 mm H2O to 0-0.5 bar)
Stainless steel body:
150 psig (10 bar)/200°F (93°C)
2% 1 or 2 switches
No enclosure
Download Download Download Download
1833DGS/DS/DGT/DT 0-5 H2O to 0-8 psid
(0-125 mm H2O to 0-0.5 bar)
Stainless steel body:
150 psig (10 bar)/200°F (93°C)
2% 1 or 2 switches
1 relay
transmitter
Class 1 Div. 2
Download Download Download Download
1835DG/DGS 5-0-5 H2O to 8-0-8 psid
(125 mm-0-125 mm
H2O to 0.5-0-0.5 bar)
Stainless steel body:
150 psig (10 bar)/200°F (93°C)
2% 1 or 2 switches
No enclosure
Download Download Download Download

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

Heavy-Duty Diaphragm Sensor

1502DG
0-10 to 0-300 psid
(0-0.67 to 0-20 bar)
3000 psig (200 bar)/200°F (93°C) 2% N/A Download Download Download Download

1533DGS/DS/DGT/DT
0-10 to 0-300 psid
(0-0.67 to 0-20 bar)
3000 psig (200 bar)/200°F (93°C) 2% 1 or 2 switches
NEMA 4X
transmitter
Download Download Download Download

*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


Diaphragm Differential Pressure Gauge 1516 Diaphragm Differential Pressure Gauge 1518


Diaphragm Differential Pressure Gauge 1831 Diaphragm Differential Pressure Gauge 1833Diaphragm Differential Pressure Gauge 1835

Diaphragm Differential Pressure Gauge 1502Diaphragm Differential Pressure Gauge 1533

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.

We offer these DP gauges with bodies (and wetted parts) of aluminum, stainless steel or brass. A variety of dial sizes are also available, from 2.5 inch to 6 inch, with many porting and mounting configurations. Choose from a wide selection of standard options; enough to satisfy any requirement.

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.

Orders & Quick Questions Form

Required fields noted with *

How to Order

Select from each of the applicable categories to construct a diaphragm differential pressure gauge model number, and write down the model number for future reference. If you are reordering you must supply the Part Number from your instrument label. Contact Orange Research or local Orange Research distributors for additional options and pricing information.

 

Sample Model Numbers

Gauge (w/switch option): 1533DGS - 1A - 2.5B - A 0-15 psid, 2 switch to close at 10 psid ascending

Switch only (no gauge): 1533DS - 1C - A  0-15 psid switch to close at 10 psid ascending

 

Model Pressure Body Dial Case Electrical Range (psid) Options
Standard Diaphragm
1516DG
1516DGS
1516DS
1516DGT
1516DT
1518DG
1518DGS
1831DG
1831DGS
1833DGS
1833DS
1835DG
1835DGS
1835DS

Heavy Duty
1502DG
1533DGS
1533DS

More models
above
In-line ports:
1A = aluminum
1C = 316 stainless steel
1E = brass

Change "1" above
to "4" for back
ports; to "5" for bottom ports

1518 and 1800 series in-line only;
1835 SS and 1516 DS only

Back/bottom ports and
brass N/A on 1533 series
(optional)
2.5B = 2.5" basic
3.5B = 3.5" basic
4.5B = 4.5" basic
6B = 6.0" basic

Change "B" to "F"
above for flanged
dial case
(optional)
A = SPST, N.O.
B = SPST, N.C.
C = SPDT
A-A = 2 ea. - A
B-B = 2 ea. - B
C-C = 2 ea. - C
R2 = relay
T2 = transmitter
Model 1516:
0-1, 0-2, 0-3,
0-5, 0-8,
0-10, 0-15,
0-20, 0-25,
0-30, 0-35, 0-40,
0-50 psid

Model 1518:
10-0-10, 15-0-15,
20-0-20, 25-0-25,
30-0-30, 50-0-50 psid
(others available)

Models 1831 & 1833:
0-5", 0-10",
0-15", 0-20",
0-25", 0-30",
0-40", 0-50",
0-60", 0-80",
0-100", 0-150",
0-200" H2O;
0-8 psid

Model 1835:
5-0-5" H2O;
1-0-1, 2-0-2,
3-0-3,
5-0-5, 8-0-8,
10-0-10, 15-0-15,
20-0-20, 25-0-25,
30-0-30, 50-0-50
100-0-100 psid
(others available)

Models 1502 & 1533:

0-10, 0-15,
0-20, 0-25,
0-30, 0-35,
0-40, 0-50,
0-60, 0-80,
0-100 0-125,
0-150, 0-200,
0-250, 0-300 psid
(others available)

Other Standard Units
bar, mbar
in H2O
mm H2O
ft H2O
kpa
kg/cm2
1 = 1/2" NPT
2 = plastic lens
3 = liquid filled (glycerine)
4 = follower pointer
5 = Teflon coated magnet/spring
6 = red arc (specify range)
7 = dual scale (specify both)
8 = high temperature

Special Seals (Buna-N standard):
E = EPDM
F = Fluorosilicone
V = Viton
T = Teflon
(o-ring seals only)

More differential pressure options

 

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