Proportional pressure relief valves0 pages
Proportional pressure relief valves
Features >
nnNG 6 up to 700 barType PDV700up to 15 l/min Direct operated for low flow, pilot operated for high flow
Օ Equipped with force controlled proportional solenoid
Large pressure range and high degreee of pressure stability
Օ Small hysteresis and low back pressure As modular valve, for electrical control of the system pressure.
Bieri Hydraulik AG | Knizstrasse 274 | CH-3097 Liebefeld | Tel. +41 31 970 09 09 | Fax +41 31 970 09 10 | www.bierihydraulics.com Technical data
Application Hydraulic fluid mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range NBR: -30 to 80 C FPM: -20 to 80 氰C
Ambient temperature range -30 to 50 C
Viscosity range 5 to 400 mm >
2 /sPorting NG 6 according to DIN 24340 / ISO 4401 / CETOP RP 121 H
Operating pressure max. connection P, A, B 700 bar
Pressure admissible max. connection T < 2 bar (refer information page 2)
Flow rate max. 15 l/min
Filtration according to NAS 1638, class 6
or ISO/DIN 4406 15/12
Weight see dimension drawings
Material / surface treatment Valve body: galvanized, black chromized Solenoid: galvanized >