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Air release valve

Air release valve

  • Certificate: UL Listed / FM Approved
  • Standard: UL 2573, NFPA 20, AWWA C512
  • Connection: Threaded, NPT / BSPT / BSPP
  • Feature: Small orifice, vent air only
  • Temperature: Max 82°C, water
  • W. pressure: 300 / 200 psi
  • Surface: FBE coating as AWWA C550

Product Details

Air release valve is used in wet pipe sprinkler systems and on casing of horizontal split case pump, so to to automatically release small pockets of accumulated air while the system operates under pressure exceeding atmospheric pressure.

Available size (Source 1 with UL/FM)

Inlet Outlet Orifice Working pressure (psi) Ref.No.
1/2″ NPT 1/2″ NPT 1/16″ 300 U1701 (UL/FM)
3/4″ NPT 1/2″ NPT 1/16″ 300 U1702 (UL/FM)
1″ NPT 1/2″ NPT 1/16″ 300 U1703 (UL/FM)

 

Available size (Source 2 with UL/FM)

Inlet Outlet Orifice Working pressure (psi) Ref.No.
1/2″ NPT 1/2″ NPT 1/16″ 300 U1711 (UL/FM)
1/2″ NPT 1/2″ NPT 3/32″ 300 U1712 (UL/FM)
3/4″ NPT 1/2″ NPT 1/16″ 300 U1713 (UL/FM)
3/4″ NPT 1/2″ NPT 3/32″ 300 U1714 (UL/FM)
1″ NPT 1/2″ NPT 1/16″ 300 U1715 (UL/FM)
1″ NPT 1/2″ NPT 3/32″ 300 U1716 (UL/FM)

 

Available size (Source 3 with FM)

Inlet Outlet Orifice Working pressure (psi) Ref.No.
1/2″ NPT / BSPT / BSPP 1/2″ NPT 1/16″ 200 U1721 (FM)
3/4″ NPT / BSPT / BSPP 1/2″ NPT 1/16″ 200 U1722 (FM)
1″ NPT / BSPT / BSPP 1/2″ NPT 1/16″ 200 U1723 (FM)

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