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DOUBLE ACTING PLOUGH OVERTURNING VALVES WITH RELIEF VALVE

This valve has been designed for use on cylinders for reversible ploughs to obtain the automatic oil flow reversal, and therefore the reversal of the hydraulic cylinder which rotates the plough. As well as a double pilot operated check valve it is provided with a maximum relief valve which reduces the pressure of cylinder extension (head side pressure) in order to protect the mechanical stops and the plough’s structure. The reversal of the cylinder is controlled by a pressure compensated relief valve set to exactly in the dead head point of the plough, generating more power and speed. It can be assembled on heavy and unbalanced ploughs with cylinders with the following internal diameters: 40/50, 60/80, 80/100, 100/110, 110/130 mm.

Features

Product code
VRAP DE + VMP
Related products

V0348
V0350
V0360
V0376
V0380

Materials

Zinc-plated steel with internal parts in hardened and ground steel

Assembly

Connect C1 to the cylinder’s rod side, C2 to the head side, P and T to the machine’s suply. Thanks to its shape, it can be assembled in-line on the hydraulic cylinder or directly fixed onto the plough by the threaded hole in the valve body.

Seal

BUNA N standard

Leakage

guided poppet, negligible leakage. These valves are supplied with exchange pressure at about 150 Bar: according to your requirements, pressure setting can be modified by adjusting the pressure regulator. Relief valve is set at 90 Bar.
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