These valves are used to control the actuator movements and block it in both directions. In order to have the descent of a load under control and avoid the load’s weight being carried away the valve will prevent any cavitation of the actuator. Type “A” is different due to the connection positions and the pilot ratio.

Materials and features:

Body: zinc-plated steel.

Internal parts: hardened and ground steel.

Seals: BUNA N standard.

Leakage: negligible leakage.

Standard setting: 320 Bar.

Valve setting must be at least 1,3 times more than load pressure in order to enable the valve to close even when undergone to maximum load pressure.

Connections: 

Connect V1 and V2 to the supply, C1 and C2 to  the actuator to be controlled. In-line mounting.

Permissible ambient temperature: -40°C to +60°C

Permissible oil temperature:  -15°C to +80°C

Oil type: hydraulic oil on mineral oil basis

Dimensions:

Hydraulic diagram:

Application:

Tures, cyclops, agricultural and industrial machinery, fork-lift trucks and other hydraulically operated equipment, also used as a brake and speed-lock for hydraulic motors.