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Dwyer Instruments

PressureDifferential Pressure Switch

product price: $844.99
/ea
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Key Features

  • Wetted Materials Fairprene, brass, steel, and aluminum.
  • Process Connection 1/2" male NPT and 1/8" female NPT used for single positive pressure or high differential pressure, 1/8" female NPT used for single vacuum or low differential pressure.
  • Features 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
  • Electrical Connections Screw type.
  • Set Point Adjustment External screw.
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Product Information

Details

Wetted Materials Fairprene, brass, steel, and aluminum.
Process Connection 1/2" male NPT and 1/8" female NPT used for single positive pressure or high differential pressure, 1/8" female NPT used for single vacuum or low differential pressure.
Features 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
Electrical Connections Screw type.
Set Point Adjustment External screw.
Conduit Connection 7/8" (22.23 mm) hole for 1/2" (12.7 mm) conduit hub.
Enclosure Rating General purpose. Weatherproof and explosion-proof optional.
Agency Approvals UL, FM for mercury switch models. UL only on snap switch models.
Temperature Limits -10 to 180°F (-23 to 82°C).
Repeatability ±1% of full range.
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 (.14 bar); sustained pressure, range P2: 10 psig (0.7 bar).
Mounting Orientation Vertical.

Description

Gas pressure/differential pressure switch, range 1-30" water (.25-7.47 kPa), max. deadband 1.3" w.c. (0.32 kPa), SPST mercury switch, closes on increase.

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