Membrane valve, with fixed high-lift calibration and direct reaction spring.
The calibration screw cannot be tampered with, without causing
irretrievable damage to the valve.
The shutter membrane is guaranteed non-stick type and will not alter
shape after prolonged utilisation.
The calibration pressure is stamped in relief on the plug placed on
top of the valve.
The possibility of the valve being opened accidentally is prevented
by a protection cap. In order to turn the knob, it is necessary to
remove the cap.
Maximum operating temperature: 110 °C
The addition of a pressure gauge is alredy foreseen.
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