This pressure switch is the only pressure switch Parker builds for the espresso machine market, brands like Asco (Sirai) and Ma-Ter are a lot more well know for this application. But it doesn’t mean that they can’t be made by someone else.
This Parker pressure switch is the model PS325-1C-SX (part numbers 870502 and 870500) is a 3 phase pressure switch which is rated up to 25A at 300V. The switch is CEI and UL approved. This pressure switch is adjustable between the 0,5bar and 1,4bar. The fitting at the bottom is a male ¼” BSP-G thread.
The maximum temperature is 140 degree Celsius and the maximum pressure is 2,1bar.
This pressure switch can be used on a variety of coffee machine manufacturers like Astoria, Brasilia, la Cimbali, Faema, Gaggia, Grimac, Nuova Simonelli, Promac, Rancilio, La Spaziale, Vibiemme, Victoria Arduino and Wega.
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This part is compatible to the original part number. Part numbers are always leading.
The Asco P302/6 pressure switch (formerly Sirai) is one of the most used 3-phase pressure switches in professional espresso machines. It automatically controls the boiler pressure by switching the heating element on and off at the set point. When the boiler reaches the preset pressure, the membrane opens the electrical circuit, and when pressure drops,...
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The thread is a ¼” BSP-G. The pressure reach is 0,5-1.5bar. It is pre-set at 1,0 bar. The switch is...
The P303T01 a more lightweight 3 phase pressure switch then the Asco P302/6 3 phase pressure switch. The difference is also that the P302/6 has a partially metal cover. And the P303T01 has a full plastic cover.
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The diaphragm on this product page can be used in pressure switches mainly used in La Cimbali Models, but you can also find it in a Faema espresso machine. The Cimbali part references for this item are 468007020 and 468-007-020. For Faema the part reference is 468-007-020.
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