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Check valves

VSK* shuttle type cartridge version valves for panels and blocks. The valve selects the higher pressure signal between “1” and “3” through the output port “2”.

The VSK1 reaches flows up to 20 l/min.

The VSK2 is a shuttle valve for pilot signals up to 3 l/min flows.

Tech. specs: P max 350 bar - Q max
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VR*-I one-way check valves with cartridge-type construction that can be used in blocks or panels. 

In the rest condition, the valve's cone on edge seal type poppet is kept closed by a spring with a fixed setting. The poppet opens when the pressure in the intake line A exceeds the set value of the spring, added to any pressure in the outlet line B.

Available in three sizes for flow rates of up to 300 l/min and with three different cracking pressures.

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VD*-W* valves are check valves with threaded BSP ports for mounting in-line on hydraulic lines.

They allow the flow to pass freely in one direction, blocking it in the opposite direction.

In rest conditions, the valve poppet is kept closed by a spring. The poppet opens when the pressure in the intake line A exceeds the set value of the spring, added to any pressure in the outlet line B.

Available in eight sizes for flow rates of up to 850 l/min and with five different cracking pressures.

 
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VR*-P valves are one-way check valves constructed in the subplate mounting version.

In rest conditions, the valve poppet, which is a cone on edge seal type, is kept closed by a spring with a fixed setting.

The shutter opens when the pressure in the intake line A exceeds the set value of the spring, added to any pressure in the outlet line B.

Available in three sizes for flow rates up to 400 l/min and with three different cracking pressures.

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VP*-P*-MU valves are check valves with a hydraulic release, constructed in a version with subplate mounting following ISO 5781 (CETOP RP 121H) standards.

They incorporate the functions of a normal one-way check valve with the facility, through external piloting, to release the poppet and allow the oil to pass also in the direction opposite to the free flow, from B to A.

In rest conditions, the valve poppet, which is a cone on edge seal type, is kept closed by a spring with a fixed setting. When piloting pressure is sent to port X, the release piston is operated, thus opening the main poppet and allowing the free flow from B to A.

The drainage port Y isolates the front face of the control piston from chamber A.

They are available in two sizes for flow rates up to 100 l/min and with different cracking pressures in the free flow direction.

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CFP pilot operated check valves, expressly designed for hydraulic presses, to allow easy filling and emptying of the press cylinder during the fast down and raise strokes.

They are “sandwich” mounted, to be installed directly between the suction flange (connected to the tank) and the cylinder.

A version with a pre-opening device is available, connected to the X pilot port, that allows circuit decompression before the cylinder raising phase begins.

The CFP valves are available in 7 different sizes with maximum flow up to 2500 l/min.

Tech. specs: P max 350 bar - Q max
CFP valves

Logic elements are cartridge valves suitable for installation in blocks or manifolds. They are available in five different sizes: ND 16 - 25 - 32 - 40 - 50 - 63.

They are designed to perform complex hydraulic circuits, using functional compact blocks, with high flow rates and low-pressure drops.

They are made of a cartridge valve with ISO7368 / DIN 24342 cavity bore and a control cover. The cover includes the cartridge valves pilot lines; some versions are designed for the installation of ISO 4401-03 (CETOP 03) valves, to realize different control functions. A low leakage version, obtained inserting a seal into the seat no. 5, is also available.

The cartridge valves are composed of a jacket, a poppet, and a closing spring. The poppet can either be standard (S) or with a damping nose (D), suitable for smooth flow control during the valve opening and closing phases.

Two types of cartridge valves are available: Q type (used for flow and directional control and as a check valve); P-type (used for pressure control).

LCM* are monitored logic elements used for directional control, piloting, and a check valve. They are certified by TÜV.

Available sizes are DN 16, 25, 32,40, and 50.

 
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