Air release valve

Air release valve

  • Certificate: UL Listed / FM Approved
  • Standard: UL Subject 2573, NFPA 20
  • Connection: Threaded, NPT / BSPT
  • Temperature: Max 82°C, water
  • W. pressure: 175 / 300 / 200 psi
  • Pump capacity: 200 ~ 2200 GPM
  • Surface: FBE coating as AWWA C550

Product Details

Air release valve is usually used on wet pipe sprinkler systems and on casings of horizontal split case pumps, so to permit trapped air in the pipeline to be released automatically without losing water pressure.

Available Size

Size Oriface Working pressure (psi) Ref.No.
1/2″ / DN15 3/32″ 175 U1701 (UL/FM)
3/4″ / DN20 3/32″ 175 U1702 (UL/FM)
1″ / DN25 3/32″ 175 U1703 (UL/FM)
1/2″ / DN15 1/16″ 300 U1704 (FM)
3/4″ / DN20 1/16″ 300 U1705 (FM)
1″ / DN25 1/16″ 300 U1706 (UL/FM)
1/2″ / DN15 1/16″ 200 U1707 (FM)
3/4″ / DN20 1/16″ 200 U1708 (FM)
1″ / DN25 1/16″ 200 U1709 (FM)
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