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Expansion Valves for Coffee Machines

Ulka logo
Ulka Air Bleeder Valve Plastic
RRP $30.95 $ 32 01
Autoactivated Valve S2 Hostaflon
ulka-bleeder-valve
In Stock
Expansion valve
RRP $33.95 $ 33 55
Expansion Valve G. 3/8M - 1/4M BSP
700744
Out of Stock
Expansion valve complete
RRP $53.95 $ 53 79
Expansion valve complete
300035
Out of Stock
Expansion valve
RRP $57.95 $ 57 09
Expansion Valve G. 1/4" M with Barb Hose Adaptor Ø 10mm
634651
Out of Stock
Expansion valve assembly
RRP $75.95 $ 74 69
Expansion Valve Set G. 3/8M - 3/8M for Faema E61
522836
Out of Stock
Expansion valve
RRP $76.95 $ 75 90
Expansion Valve 1/4"M × 1/4"F 69mm 11 Bar
700605
In Stock
Expansion valve
RRP $59.95 $ 82 50
Expansion Valve 1/4" M 9–14.5 Bar with Barb Hose Adaptor Ø 10mm
401183
Out of Stock
Expansion valve complete
RRP $87.95 $ 87 12
Neplax Expansion Valve G. 1/4" M × 1/4" M
703441
Out of Stock
Expansion valve complete
RRP $105.00 $ 101 64
Expansion Valve 3/8" M × 1/4" M
620628
Out of Stock
Expansion Valve 1/4" M 9–14.5 Bar with Barb Hose Adaptor Ø 10mm
RRP $134.00 $ 130 90
Expansion Valve 1/4" M 9–14.5 Bar with Barb Hose Adaptor Ø 10mm
300282
Out of Stock
Expansion valve
RRP $145.00 $ 141 90
3 Way Expansion/one Way Valve G. 1/4m-1/4m-3/8 BSP Viton Sealing
703056
Out of Stock
Expansion valve complete
RRP $63.95 $ 142 01
Expansion Valve 1/4" M 9-14.5 Bar with Barb Hose Adaptor Ø 10mm
401182
Out of Stock
Expansion valve complete one-way
RRP $154.00 $ 152 90
Non-return Expansion Valve G. 3/8M × 3/8M
578438
Out of Stock
Rancilio logo
Expansion valve miss new
RRP $149.95 $ 156 20
Expansion Valve Ø 1/4"F×1/8"F with 8mm Hose End
620645
In Stock
Rancilio logo
Opv (expansion valve)
RRP $93.95 $ 233 31
Expansion Valve (OPV)
200152
In Stock
Displaying 1 to 15 of 15

What is an expansion valve?

The purpose of an expansion valve, also known as an over-pressure valve, is to release excess pressure in the line once the line has been shut closed. This is required to release the pressure in the espresso machine lines due to heat causing water expansion. Some of these valves are adjustable, and correct adjustment is crucial as these valves directly affect espresso extraction.

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