Differential Pressure

0-5 to 0-300 psid

Heavy-duty Diaphragm Sensors

for Liquids & Gases

Features

>> High DP ranges, liquids and gases

>> Rugged, weatherproof design

>> Gauge, switch and transmitter versions

>> Flexible, repeatable diaphragms with 2% accuracy

Specifications

Model

Differential

pressure

range**

Maximum

line pressure/

temperature

Accuracy

(F.S.)

(Ascending)

Electrical

available***

Additional

information

(PDFs)

1502DG

0-10* to 0-300 psid

(0-0.67 to 0-20 bar)

3000 psig (200 bar)/

200F (93C)

not available

1533DGS/DS/DGT/DT

0-10* to 0-300 psid

(0-0.67 to 0-20 bar)

3000 psig (200 bar)/

200F (93C)

1 or 2 switches

NEMA 4X

transmitter

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

*Fluorosilicone diaphragm is standard for 0-10 psid, Buna diaphragm is standard for above 0-10 psid

**Ranges available by diaphragm material:

-- Fluorosilicone: 0-10 to 0-300 psid

-- Buna: 0-15 to 0-300 psid

-- EPDM: 0-15 to 0-300 psid

-- Viton: 0-25 to 0-300 psid

***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.

Dimensions

Model 1502 diaphragm sensor differential pressure gauge

Model 1533 diaphragm sensor differential pressure gauge-switch

Dimensional drawings of models 1502DG and 1533DGS

differential pressure gauges with heavy-duty diaphragm sensors.

For complete dimensions click on Drawing PDF in table above.

How to Order

Select from each of the applicable categories to construct a model number. Write down model number for future reference. Contact Orange Research or local Orange Research distributors for additional options and pricing information. Reordering? You must supply the Part Number from your instrument label.

Samples

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

Options

1502DG

1533DGS

1533DS

More models

above

In-line ports:

1A = aluminum

1C = 316 stainless

1E = brass

Change "1" above to:

"4" for back ports

"5" for bottom ports

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

6.0B = 6.0" basic

Change "B" above

to "F" 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

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)

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 diaphragm and seals

(Buna is standard)

E = EPDM

F = Fluorosilicone

V = Viton

T = Teflon (o-ring seals only)

(more differential pressure options)

Diaphragm Sensor 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.

We offer them 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.

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

Switches, Relays, Transmitters

A variety of reed switches, relays and transmitters can accompany the gauges or be supplied on their 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 voltage output. More information on switches, relays and transmitters.

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Differential Pressure • Gas & Liquid Flow • Liquid Level Switches • Site Map

Orange Research Incorporated • 140 Cascade Boulevard • Milford CT 06460
(203) 877-5657 • FAX: (203) 783-9546 • Toll-Free: 1-800-989-5657