Universal anti-vacuum (air bleed) valve with a 1/4″ thread and 18 mm height, with a stainless-steel plug and a brass piston. It releases air trapped in the boiler during heat-up and prevents a vacuum on cool-down, for stable steam. Fits most boilers with a 1/4″ thread.
Prices and availability on request. We reply in English or Portuguese.
Specifications
Part name
air bleed valve
Thread
1/4″
Height
18 mm
Material
stainless steel
Type
universal (any brand)
FAQ
Will it fit my boiler?
It is universal and fits boilers with a 1/4″ thread and room for the 18 mm height. Match the thread and height of the mounting point to your current valve.
What does the anti-vacuum valve do?
It releases air from the top of the boiler during heat-up and lets air back in on cool-down, preventing a vacuum — so heating is even and steam is stable.
What is it made of?
The plug is stainless steel and the piston is brass, both resistant to heat and steam corrosion, giving a reliable seal over time.
How do I know it needs replacing?
A constant steam leak after warm-up, or weak initial steam because the air cannot escape, points to scale or wear — replace the valve.
How do I order?
Send your request through 'Request a quote' and we reply with availability and lead time. Ships from Portugal across the EU.
All brand names are registered trademarks of their respective owners and are used solely to indicate part compatibility. ESPRESSOTECHNIC is not an authorised representative of these brands unless expressly stated otherwise.
