شیر هیدرولیک HAWE مدل GR2-3

Directional control valves are generally used for the direct, leakage free control of consumers and as pilot valves for hydraulically
actuated valves (depending on the flow pattern). They are designed as spring returned ball seated valves. The valve elements are
forced into their respective switching position against the spring force and fluid pressure by various actuation elements via an
elbow lever acting on a pin. A strainer insert in the inlet port prevents the entry of coarse contamination.
The fluid ducts end as holes with O-ring seals at the ground, bottom surface of the valve body. Pipes may be connected either via
customer furnished connection blocks or sub-plates (for individual valves with sub-plates see sect. 5 or for valve banks see D 7302).
These valves do not show any leakage in blocked switching position. Reliable shifting is ensured, as these valves are designed as
ball seated valves where there is no seizing or sticking in working position under full pressure. The leverage between actuation and
valve element ensures low actuation forces and smooth shifting. To avoid interaction, most of these directional control valves are
available with check valve inserts and return pressure stops or orifice inserts to limit the inflow of oil.
Individual valves with sub-plate, enabling direct pipe connection, may be equipped with a by-pass check valve, a pressure limiting
valve, or a rectifier circuit by means of check valves.