According to the definition of the UNI standards ref. UNI-ISO 5598 this valve is considered: "Valve which immediately opens its outlet to exhaust, whenever the pressure of the air decreases at the inlet."
The air arrives from the system and enters at "P", it moves the pad (Part.N.3) sealing "R" and bending the pad edges, it travels to "A" (Fig.N.1)
When it miss the pressure in "P", the air presents into the system due to the difference of pressure, it moves the pad sealing "P" and it clears through outlet "R" (Fig.N.2).
This allows a speedy and a better exhaust and also it speeds up the work cycles.
At the outlet "R" it is advised to assembly a silencer or if necessary use the flow for further signals or uses.
Component Parts and Materials 1 Body made in Nickel-plated Brass 2 O-Ring seals made in PA66 3 Cover cap made in Nickel-plated Brass 4 Pad made in NBR 70
Connection Tubes Various types of fittings used on the pneumatic systems and metallic threaded tubes.
Temperatures
Minimum Temperature:
-18 °C
Maximum Temperature:
+70 °C
Threads
Parallel gas in conformity with ISO 288.
Pressure Minimum pressure: 0.3 bar
Maximum pressure: 10 bar (1 MPa)
Fluids Compressed Air.
Fittings are available in the following sizes: thread of M5 to 1".
ATTENTION: The free exhaust to atmosphere do not allow to use the valve with toxics, corrosives and inflammables gas.
