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The valve is required on the steam wand of an espresso machine. It is to open and close after being switched on and throttle steam coming from a boiler without reducing the pressure in the boiler significantly.

2007-02-19 22:17:00 · 1 answers · asked by Anonymous in Science & Mathematics Engineering

1 answers

Most expresso machines use a needle valve to modulate the steam in the wands.

2007-02-20 06:59:05 · answer #1 · answered by Jeffrey S 6 · 0 0

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