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Dwyer 1900 Series Compact Low Differential Pressure Switches

Dwyer 1900 Series Compact Low Differential Pressure Switches

Product Details:


Product Specifications

  • Gas, Oil, Steam

Trade Information

  • Cash in Advance (CID), Cash Advance (CA), Cash on Delivery (COD), Cash Against Delivery (CAD)
  • Asia
  • West Bengal, Uttarakhand, Uttar Pradesh, Tripura, Telangana, Tamil Nadu, Sikkim, Rajasthan, Pondicherry, Punjab, Odisha, Nagaland, Manipur, Meghalaya, Mizoram, Maharashtra, Madhya Pradesh, Lakshadweep, Kerala, Karnataka, Jharkhand, Jammu and Kashmir, Himachal Pradesh, Haryana, Goa, Gujarat, Daman and Diu, Dadra and Nagar Haveli, Delhi, Chandigarh, Chhattisgarh, Bihar, Arunachal Pradesh, Assam, Andhra Pradesh, Andaman and Nicobar Islands, West India, East India, North India, Central India, South India, All India

Product Description

Dwyer 1900 Series Compact Low Differential Pressure Switches

For air and non-combustible compatible gases, Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure and prevents tampering. UL, CE and CSA listed, and FM approved.

Dwyer 1900 Series Offers


  • Oversized check valves for smooth controlled operation
  • Mash proof vent valve (no needle valve)
  • Patented non-oil based lubricants used on all moving parts
  • Dual O-rings on all pistons to ensure zero leakage
  • Air conditioning refrigeration coil icing detection; defrost cycle initiation
  • Clogged filter detection
  • Variable air volume controller
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