DWYER – Series 1630 Large Diaphragm Pressure Switches

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Description

Series 1630 Large Diaphragm Pressure Switches

Visual Set Point Adjustment in 5 Standard Ranges, 0.05″ to 12″ w.c. Repetitive Accuracy within ±1%

On the Series 1630 Large Diaphragm Pressure Switch our highest precision conventional pressure switch provides maximum dependability. In addition, it incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service. Electrical capability of 15 amps handles most small electrical loads. For use only with air or compatible gases.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

 

Product Applications

  • Damper positioning
  • Duct air control
  • Air conditioning
  • Industrial service

 

Features

  • Visible set point indicator simplifies operation and trouble shooting
  • Large diaphragm provides low range accuracy providing precise control
  • Current loads of up to 15 amps supports most small electrical loads supporting a broader range of HVAC and Process applications without the need for additional relays and components

 

Specifications

  • Service: Air and non-combustible, compatible gases.
  • Wetted Materials: Consult factory.
  • Temperature Limits: -30 to 110°F (-34.4 to 43.3°C).
  • Pressure Limits: 10 psig (68.95 kPa) continuous, 25 psig (172.4 kPa) surge.
  • Switch Type: SPDT.
  • Repeatability: ±1%.
  • Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive, 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz.
  • Electrical Connections: 3 screw type, common, normally open and normally closed.
  • Process Connections: 1/8″ female NPT.
  • Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
  • Set Point Adjustment: Screw type with enclosed scale.
  • Weight: 3 lb 3 oz (1.50 kg).
  • Agency Approvals: CSA, FM, UL.

 

Models & Ordering

Model Description
1638-0 Large diaphragm pressure switch, range 0.05-0.25″ w.c., approx deadband @ 0.04 min. set point, 0.05 max. set point.
1638-1 Large diaphragm pressure switch, range 0.20-1.0″ w.c., approx deadband @ 0.04 min. set point, 0.06 max. set point.
1638-10 Large diaphragm pressure switch, range 3.0-12″ w.c., approx deadband @ 0.11 min. set point, 0.30 max. set point.
1638-2 Large diaphragm pressure switch, range 1.0-3.0″ w.c., approx deadband @ 0.06 min. set point, 0.08 max. set point.
1638-5 Large diaphragm pressure switch, range 2.0-6.0″ w.c., approx deadband @ 0.07 min. set point, 0.25 max. set point.

 

 

 

 

Additional information

Model

1638-0, 1638-1, 1638-10, 1638-2, 1638-5

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