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Product description
The spool valve is controlled by two directional valves, the pilot valves (3, 4),
which are operated mechanically by the air piston in its stop positions. The pilot
valves aerate and vent the operating area of the control slide valve.
An equilibrium of forces on the drive and high-pressure side is generated as soon
as the stall pressure is reached. The liquefied gas pump stops and no longer con-
sumes drive fluid. A pressure drop on the high-pressure side or a pressure in-
crease on the drive side result in an automatic restart of the liquefied gas pump
while the compressed fluid is compressed until an equilibrium of forces is re-
stored.
0000000383 - 001 - EN
14
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