Dwyer

PG Gas Pressure/Differential Pressure Switch

1% of full scale repeatability, clear easy-to-read scale with convenient external setpoint adjustment

Starting At
$673.00 CAD
Normally ships in 3-4 Weeks

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Large sensitive diaphragm and reliable, time proven mechanical design are combined in Series PG pressure/differential pressure switches. For use with air and other compatible gases, they feature excellent ± 1% of full scale repeatability, clear easy-to-read scale and convenient external setpoint adjustment.

Application flexibility is assured by a large variety of switching options including SPST, SPDT, DPST and DPDT; opening or closing on increasing pressure, vacuum or differential. PR and PRL models add manual reset operation on increasing or decreasing pressure. Mercury switches or hermetically sealed snap switches are available where high humidity would be a problem. If vibration or other factors preclude the use of mercury, snap switches can be provided. Standard housing is NEMA 1. Optional enclosures can be supplied for weather resistant and explosion-proof requirements.

• Clear easy-to-read scale and external set point adjustment simplifies operation and trouble shooting
• Large diaphragm provides accuracy for precise control
• Multiple switching options meet the design of applications

Wetted Materials Fairprene, brass, steel, and aluminum
Temperature Limits -10F - 180F (-23C - 82C)
Pressure Limit Single Pressure Use on High Side:
Sustained pressure: 15 PSIG (1.0 Bar);
Surge limit: 20 PSIG (1.4 bar).
Differential Pressure Use:
Sustained pressure, range P1: 2 PSIG (0.14 Bar);
Sustained pressure, range P2: 10 PSIG (0.7 Bar)
Enclosure Rating General purpose. Weatherproof and explosion-proof optional
Repeatability 1% of full range
Switch Type See Ordering page
Electrical Rating See Ordering page
Electrical Connections Screw type
Conduit Connection 7/8 in (22.23 mm) hole for 1/2 in (12.7 mm) conduit hub
Process Connection 1/2 in male NPT and 1/8 in female NPT used for single positive pressure or high differential pressure, 1/8 in female NPT used for single vacuum or low differential pressure
Mounting Orientation Vertical
Set Point Adjustment External screw
Weight 4.5 lb (2 kg)
Deadband See Ordering page
Agency Approvals UL, CSA, FM for mercury switch models. UL only on snap switch models

• Natural, manufactured or LP gas applications