BIERI offers a wide range of hydraulic valves for various industrial applications. All valves are characterized by high tightness, reliability, long service life and easy operation. Our valves are complemented by our diverse range of pumps, of course also for pressures up to 1000 bar.

Bieri Hydraulik AG is a leading international supplier of hydraulic and electrohydraulic solutions in the field of high-pressure hydraulics.

The BIERI series WV700 are direct operated and poppet tight directional poppet valves out of the series NG6 700 bar, suitable for highest demands. The modular principle of the major components allows a great variety of symbols 2/2-, 3/2-, 3/3-, 4/2-, 4/3- functions with positive or negative overlap.

BIERI directional poppet valves are leaktight valves, suitable for pressures of up to 1000 bar and flow rates of up to 25 l/min. Depending on the valve series, available in size 4 or 6, in accordance with Bieri standard or DIN 24340 / ISO 4401 / CETOP RP 121 H.

• 1 up to 4 valve cartridges depending on valve type • Hidden manual override • Available as 2/2-, 3/2-, 4/2-, 3/3- or 4/3-seated valves with solenoid or manual actuation • Pressure balanced valve cones • Use of non-return valves and orifice plates with intermediate plate possible (see technical data sheets ZP700, RV500-RV700 and ...

The valve consist of a cartridge (1), seat (2), taper (3) with dampening piston (4), spring (5), adjusting spindle (6) and lock nut (7). The spring pushes the taper onto the valve seat. The system pressure in the P-line acts on the taper.

BIERI cartridge directional poppet valve WS700 are compact, highly reliable and designed for high duty cycles and a long lifetime. The patented valve design is space saving and ready to use in tight installation conditions.

The Bieri valve range includes linear-position, pressure, flow and check valves, suitable for pressures of up to 1000 bar and flow rates of up to 63 l/min, and the corresponding accessories.

Axial and radial piston pumps, valves, pressure switches, oil level switches and valve manifolds all from part of the standard Bieri product range. The extensive Bieri product range includes hydraulic components for the most varied of requirements and applications.

Porting NG 4 according to Bieri standard Max. operating pressure connection P, A, B 700 bar (4/3 seated valves max. 500 bar) Pressure difference from P to A, B to T must be adhered! (p ... Check valve (fitting in connection P) RVH700-4B-D6,5-X-A*00 All 3680704 Return pressure stop (fitting in connection T) RDH700-4B-D6,5-X-A*00 All 3687580