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Shut-off valves, follow-up valves, two-stage valves

Shut-off valve type AL, ALE, ALZ and ASE
Shut-off valves or accumulator charging valves are a type of pressure control valve. They switch the delivery flow of a pump to unpressurised circulation if the pressure value set is reached. During this process, the consumer side is separated from the idle circulation by a
zero-leakage check valve. If the pressure drops in the consumer side, the idle circulation is interrupted and the oil fed to the consumer again. The shut-off valve type LV and ALZ operates using automatically controlled (pulse independent) step switching in the pilot valve.

AL - Shut-off valves
CDSV - Shut-off valves

Pressure-dependent shut-off valve type DSV,DSVP and CDSV
Pressure-dependent shut-off valves are a type of pressure control valve. When a set pressure value is reached and exceeded, they block the flow to consumer line B with zero leakage. The valves will open again if the pressure on inow side A falls below the set value defined by the spring tension.

Pressure-controlled shut-off valve type CNE
Shut-off valves are a type of pressure control valve. They receive the control oil from a  high-pressure circuit and switch the delivery ow of a low-pressure pump to unpressurised  circulation if the pressure value set has been reached. During this process, the consumer  side is separated from the idle circulation by a zero-leakage check valve. If the pressure on  the consumer side drops below the pressure setting, the idle circulation is interrupted and  the oil fed to the consumer again.  Via a control line the higher pressure in the high-pressure circuit holds open the pressurecontrolled  2 directional valve type CNE and with it the idle circulation. In the low pressure  circuit the valve acts simultaneously as a pressure-limiting valve.  The valve type CNE can be screwed-in and can be integrated into control blocks. The necessary mounting holes are straightforward to make.

CNE - Shut-off valves
LV - Shut-off valves

Shut-off valve type LV and ALZ
Shut-off valves or accumulator charging valves are a type of pressure control valve. They switch the delivery ow of a pump to unpressurised circulation if the pressure value set is reached. During this process, the consumer side is separated from the idle circulation by a
zero-leakage check valve. If the pressure drops in the consumer side, the idle circulation is interrupted and the oil fed to the consumer again. The shut-off valve type LV and ALZ operates using automatically controlled (pulse independent) step switching in the pilot valve.

Two-stage valve type NE
Two-stage valves are a type of pressure control valve. They are used in hydraulic systems that are supplied by dual stage pumps, a combination of high-pressure pump and lowpressure pump. The two-stage valve type NE combines the two pump delivery flows into a common volumetric flow. It switches the low-pressure pump to unpressurised circulation if the pressure value set is reached. It protects both pumps against exceeding the high or lowpressure value set. The two-stage valve type NE is used with directional valves to control double acting hydraulic cylinders.

NE - Shut-off valves

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