Rocket coffee machine Anti-Vacuum Valve 1/4" brass

Rocket Espresso Anti-Vacuum Valve – 1/4" BSPM

Replace a faulty anti-vacuum valve on your Rocket Espresso machine with this genuine 1/4" BSPM fitting replacement. The anti-vacuum valve (also known as a vacuum breaker or anti-syphon valve) is a critical boiler component that prevents a vacuum forming in the boiler when the machine cools down, protecting seals and internal components from damage.

Compatibility

• Rocket Espresso machines with 1/4" BSPM boiler fitting
• Check your machine's boiler fitting size before ordering

Specifications

• Thread: 1/4" BSPM (British Standard Pipe Male)

When to Replace Your Anti-Vacuum Valve

• Valve is dripping or weeping when the machine is at temperature
• Valve fails to open on cool-down (boiler vacuum forming)
• Visible corrosion, mineral build-up, or damage to the valve body
• Routine preventative replacement during a boiler service

Frequently Asked Questions

What does an anti-vacuum valve do?

When your espresso machine cools down, the boiler pressure drops. Without a functioning anti-vacuum valve, a vacuum can form inside the boiler, which can draw water back through seals and damage internal components. The valve opens to allow air in and prevent this.

Is this compatible with my Rocket Espresso machine?

This valve suits Rocket Espresso machines with a 1/4" BSPM boiler fitting. If you're unsure of your model's fitting size, contact us with your machine's model and serial number before ordering.

Can I replace this myself?

Replacing an anti-vacuum valve requires draining the boiler and working safely with pressurised components. We recommend this be carried out by a qualified technician. Our Sydney-based team can assist — contact us to book a service.