Check valves, hydraulically pilot operated

These hydraulic check valves are part of the shut-off valves according to DIN ISO 1219. With a hydraulic inlet in the connection Z the blocked flow A→B can be opened. The flow B→A is permanently open. Pressure medium: Hydraulic oil 10  68 mm²/s, (ISO VG 10 to 68 according to DIN 51 519). The check valves without pilot control feature a ball as a valve element.

Application example:

The valve version with pilot control contains a spherical grinded valve piston with an integrated ball check valve. Already when opening the valve piston a throttle opening is released during the unlocking process. This dampens the pilot opening movement of the unlocking piston. Pressure surges in the load volume are suppressed by that. The pilot control ensures a lower opening pressure which is suitable especially for for swing clamp cylinders.

• any mounting position possible

• easy installation through pipe connections

• dampens pressure surges in the consumer volume

• allows low opening pressure

• ideal for high operating pressure and consumer volumes

• especially suitable for swing clamp cylinders

Operating pressure:

pmax. 500 bar

 

Installation:

pipeline

 

Pilot control:

without/with

 

Control volume:

0,15 cm³ and 0,40 cm³

 

Volume flow:

Qmax. 15 l/min and 55 l/min

 

 

Pressure medium:

Hydraulic oil, acc. to DIN 51524 Tl.1 up to 3; ISO VG 10 up to 68 acc. to DIN 51519

Data sheet (PDF):

 

For technical details and dimensional drawings download the current data sheet.

 

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