HAWE Pressure Reducing Valve CDK 3-1
These valves are used when a secondary circuit has to be fed with a lower but constant pressure level by a main (primary) oil circuit with a higher and varying pressure level. The valve described here is directly controlled. Compared with conventional, piston-type pressure-reducing valves suffering from leaking oil, where an additional drain port is required, this type is designed according to the 2-way principle, i.e. it has zero leakage when in a closed state. Type CLK has an additional override compensation. A reversal of the flow direction is possible up to approx. 2 x Qmax. These valves can be screwed into the easily produced threaded holes. A particular feature of type DK is the tracked pressure switch, i.e. the pressure and switch are set at the same time with one adjustment device.If the primary pressure level at P is below that of the secondary side at V, a reversal of the flow VP is possible with little pressure loss via the bypass check valve.The 2-way pressure-reducing valve is designed as an individual valve for manifold mounting. It is incorporated in one block together with a bypass check valve for reducing the flow resistance of VP and optionally a throttle or orifice (retrofittable) if required.
- Qmax 6...22 meters liters per second
-Pmax. 300 Bar