1200 SERIES PISTON

DIFFERENTIAL PRESSURE

Gauges ∙ Switches ∙ Transmitters

● Heavy duty weatherproof design

● Measure up to 150 psi differential

● Handle up to 10,000 psi line pressure

● Popular in filtration, level and flow applications

Model

Differential

pressure

range

Maximum

line

pressure*/temp.

Accuracy

(F.S.)

Electrical

Available

Additional

Information

1201PG/PGS/PS

PG (Piston Gauge)

PGS (Piston Gauge-Switch)

PS (Piston Switch)

0-5 to 0-150 psid

(0-0.33 to 0-10 bar)

3000 psig (200 bar)/

200F (93C)

1 switch -

no enclosure

1202PG

PG (Piston Gauge)

0-5 to 0-150 psid

(0-0.33 to 0-10 bar)

5000 psig (340 bar)/

200F (93C)

Not available

1203PS/PGS

PS (Piston Switch)

PGS (Piston Gauge-Switch)

PT (Piston Transmitter)

PGT (Piston Gauge-Trans)

0-5 to 0-150 psid

(0-0.33 to 0-10 bar)

5000 psig (340 bar)/

200F (93C)

1 or 2 switches

1 relay

transmitter

Class 1 Div. 2

For Class 1 Div. 1

*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 Model Number: 1201PG - 1A - 2.5B - A 0-15 psid, Options

Model

Port

Body

Dial Dia.

Dial Case

Switch

Range

1201PG

1201PGS

1201PS

1202PG

1203PGS

1203PS

1 = in-line

4 = back

5 = bottom

Back/bottom porting not available on model 1203

A = alumin.

C = 316 SS

E = brass

2.5 = 2.5"

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

R2 = relay

T1 = transmitter

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 psid

Options

Write in options that apply. For options click here.

Piston Sensor Differential Pressure Gauges

These piston 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, brass or PVC. 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: Our piston sensor models are best for liquid applications as they have a slight amount of fluid migration from the high to low pressure ports. Select our diaphragm models for air or gas applications or where fluid migration cannot be tolerated.

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 switches also are available. DPDT relays are offered for high inductance applications, such as those incorporating motors or solenoids. Transmitters offer a wide variety of outputs, such as voltage, current, frequency or RS 232. Click here for more information on switches, relays and transmitters.

Differential Pressure Instruments • Low DP Instruments • Flow Meters • 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