Pilot operated check valve type ERV700

Features


Applications

Design


Technical data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range – 20 bis 80 °C
Ambient temperature range – 20 to 50 °C
Viscosity range 5 to 400 mm2/s
Porting (Cartridge see page 2) NG 6 according to DIN 24340 / ISO 4401 / CETOP RP 121 H
Max. operating pressure connection P, A, B 700 bar
Max. pressure admissible connection T 350 bar
Pressure ratio modular subplate (parts in body) pe/p = 1:5.4
cartridge 1:7.2
Max. flow rate
Back pressure at 25 l/min
25 l/min
modular subplate (parts in body) 5 bar
cartridge 30 bar
Cracking pressure check valve modular subplate (parts in body) ca. 1 bar
cartridge ca. 6 bar
Filtration (recommendation) according to NAS 1638, class 6 or ISO/DIN 4406 17/15/12
Weight see dimension drawings
Material / surface treatment housing: steel, galvanized, chromated
outer parts cartridge: corrosion protection