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1/4" Brass Anti-Vacuum Valve

$24.00

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Also called siphon, anti-siphon or vacuum breaker valve. This valve allows air to escape the boiler as the water heats up, hissing and then closing off when the boiler water reaches it's operating temperature, sealed by the steam pressure created. Measure your existing valve: the outside of the male threads of a 1/4" BSP fitting measure 1/2". One may also use this version.

Gaskets are not always required; as the valve and boiler expand any small leaks at the junction will likely disappear forever. A good rule of thumb: if your valve and boiler had a gasket, get a new replacement for added assurance.

Cross-references

Part number Manufacturer
W10836 ASCASO
56150 ASTORIA
5965070 BEZZERA
7452511 BEZZERA
3630001 BFC
418-932-000 CIMBALI
C219900561 ECM MANUFACTURE
3161134654 FAEMA
5.0.000.1002 FIAMMA RST
1200300045 GRIMAC
GR037 GRIMAC
1066125 LAVAZZA
10066400 LAVAZZA
10082685 LAVAZZA
L190 MARZOCCO (theirs have a lower fitting that is zinc-coated)
700750 NUOVA RICAMBI
56150 MCE
D56150 ORCHESTRALE
3630001 ROYAL
528124 VFA EXPRES
WY56150 WEGA