عضویت 
ورود اعضا
راهنمای خرید
Pressure relief valves Type DV7000 pages
Pressure relief valves
NG 6 up to 700 bar
Features
•tDirect operated valve
•tHigh degree of pressure stability
•tSafe operation
•tPrecise pressure adjustment
•tPorting NG 6 according
t to DIN 24340
•tMaximum pressure setting
t with lock nut
Type DV700
up to 25 l/min
Application
–t as cartridge
–t as modular valve with one
t or two cartridges
Hydraulic fluidt
Mineral oil according to DIN 51524
(other fluids on request)
Fluid temperature ranget
NBR: -30 to 80 °C
FPM: -20 to 80 °C
Ambient temperature ranget
-30 to 50 °C
Viscosity ranget
5 to 400 mm2/s
Portingt
Technical data
Pressure relief valves are direct operated
seated valves with dumping piston.
They are used to limit the pressure in
a hydraulic system.
NG 6 according to DIN 24340 / ISO 4401 / t
CETOP RP 121 H
Operating pressure max. connection P, A, Bt 700 bar
Pressure admissible max. connection Tt
350 bar
Flow rate max.t
25 l/min
Filtrationt
according to NAS 1638, class 6 or
ISO/DIN 4406 17/15/12
Weightt
see dimension drawings
Material / surface treatmentt
housing: steel, galvanized, chromated
cartridge: steel corrosion resistant
adjusting knob: plastict
Bieri Hydraulik AG | Könizstrasse 274 | CH-3097 Liebefeld | Tel. +41 31 970 09 09 | Fax +41 31 970 09 10 | www.bierihydraulics.com
