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HAZARDOUS LOCATION
DIFFERENTIAL PRESSURE

Class 1 Div. 1 Models and Specifications

● For use where hazardous concentrations exist

● Many safety certifications

● Gauges, switches and transmitters

 

HOW THEY WORK

STD. OPTIONS

DIAL CASES

ELECTRICAL

MOUNTING OPTS

RETURN TO GUIDE

Model

Differential

pressure

range

Maximum

line

pressure*/temp.

Accuracy

(F.S.)

Electrical

Available

Additional

Information

1204PGS/PS

PGS (Piston Gauge Switch)

PS (Piston Switch)

0-5 to 0-150 psid

(0-0.33 to 0-10 bar)

5000 psig (340 bar)

200F (93C)

2%

1 or 2 switches

1 or 2 relays

transmitter

Class 1 Div. 1

Catalog page

Specification sheet

Instruction sheet

Drawing

Replacement parts

1304PGS/PS

PGS (Piston Gauge Switch)

PS (Piston Switch)

0-100 to 0-1000 psid

(0-7 to 0-70 bar)

 

5000 psig (340 bar)

200F (93C)

2%

1 or 2 switches

1 or 2 relays

transmitter

Class 1 Div. 1

Catalog page

Specification sheet

Instruction sheet

1504DGS/DS

DGS (Diaphragm Gauge Sw)

DS (Diaphragm Switch)

0-5 to 0-300 psid

(0-0.33 to 0-20 bar)

3000 psig (200 bar)

200F (93C)

2%

1 or 2 switches

1 or 2 relays

transmitter

Class 1 Div. 1

Catalog page

Specification sheet

Instruction sheet

Drawing

1514DGS/DS

DGS (Diaphragm Gauge Sw)

DS (Diaphragm Switch)

0-1 to 0-50 psid

(0-0.07 to 0-3.3 bar)

 

3000 psig (200 bar)

200F (93C)

2%

1 or 2 switches

1 or 2 relays

transmitter

Class 1 Div. 1

Catalog page

Specification sheet

Instruction sheet

Drawing

Replacement parts

1804DGS/DS

DGS (Diaphragm Gauge Sw)

DS (Diaphragm Switch)

0-5" H2O to 0-8 psid

(0-125 mm H2O to

0-0.5 bar )

Aluminum body:

100 psig (7 bar)

Stainless steel body:

150 psig (10 bar)

200F (93C)

2%

1 or 2 switches

1 or 2 relays

transmitter

Class 1 Div. 1

Catalog page

Specification sheet

Instruction sheet

*Ask about our 10,000 psig line pressure units

Dimensions:

 

 

How to specify:

Select from each of the applicable categories to construct a model number. Write down model number for future reference. Contact Orange Research or your local distributor for additional options and pricing information.

 

Sample: 1204PGS - 1A - 3.5F - A 0-5 psid, Options

-

 

^

Model

 

 

^

Port*

-

 

^

Body

 

 

^

Dial Dia.

-

 

^

Dial Case

 

 

^

Switch

 

 

^

Range

1204PGS

1204PS

1304PGS

1304PS

1504DGS

1504DS

1514DGS

1514DS

1804DGS

1804DS

1 = in-line

4 = back

 

*1304 high pressure port on top, low pressure port on side only

A = aluminum

C = 316 SS

3.5 = 3.5"

4.5 = 4.5"

6.0 = 6.0"

B = basic

F = flanged

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

R1A = relay

R1D = 2 relays

T1 = transmitter

Model 1204:

0-5, 0-8, 0-10,

0-15, 0-20, 0-25,

0-30, 0-35, 0-40,

0-50, 0-60, 0-80,

0-100 psid

Model 1304:

0-125, 0-150, 0-200,

0-250, 0-300, 0-400,

0-500, 0-600, 0-700,

0-750, 0-800, 0-900,

0-1000 psid

Model 1504:

0-5, 0-8, 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

Model 1804:

0-5, 0-10, 0-15, 0-20,

0-25, 0-30, 0-40,

0-50, 0-60, 0-80,

0-100, 0-125, 0-150,

0-200 in. H2O

 

 

 

 

 

 

 

 

 

 

 

^

Options

Write in options that apply. For options click here.

Hazardous Location Differential Pressure Gauges

Hazardous location 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.

These hazardous location differential pressure instruments are used in environments containing hazardous vapors, gases or particulates. The switches and electrical connections are housed in special UL, CSA, FM and ATEX approved enclosures. The cast aluminum housings have two mounting lugs, a 3/4" NPT electrical conduit port, and meet the following specifications: Class 1, Gr. B, C, & D; Class II, Gr., E, F, & G; and Class III. They also meet NEMA 3, 4X, 7, 9, & 12 specifications.

We offer them with bodies (and wetted parts) of aluminum and stainless steel. A variety of dial sizes are also available, from 3.5 inch to 6 inch, with many porting and mounting configurations. Choose from a wide selection of standard options; enough to satisfy any requirement.

Switches, Relays, Transmitters

A variety of reed switches and relays can accompany the gauges or be supplied on their own, without a gauge. 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.
 
Orange Research is your source for differential pressure gauges, differential pressure switches, differential pressure transmitters, flow switches, flow transmitters, flow meters and level switches. Some of the many applications for these products are filtration, compressors and heat exchangers for a wide variety of industries including petroleum, chemicals and semiconductors, just to name a few!
Orange Research Incorporated • 140 Cascade Boulevard • Milford CT 06460
(203) 877-5657 • FAX: (203) 783-9546 • Toll-Free: 1-800-989-5657