Throttle check valve type SDRVM (500+)

  • Porting NG 4
  • Operating pressure: up to 500 bar
  • Flow rate: up to 25 l/min

Features

  • Adjustable while under pressure
  • High-precision control • Bi-directional flow
[Translate to EN:] Drosselrückschlagventil Typ SDRVM (500+)

Applications

The throttle check valve SDRMV is a part of the 500+ serie and consists of adjustable throttle valves SDM and check valves RVM (size G1/4), which are integrated in a valve block. Depending on the closing direction of the check valve is a throtteling of the flow in one direction and a low-loss flow through the check valve in the other direction. Herewith it is possible to set the speed of the cylinder or motor into the requested direction. The throttle check valve is located between a seated valve and the cylinder or motor. Various versions are shown below in the different symbols.

Design

  • In manifolds
  • External housing corrosion-free material
  • The valve setting can be locked by a counter nut

Technical data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -20 to 80 °C
Ambient temperature range -30 to 50 °C
Viscosity range 5 to 420 mm2/s
Porting NG 4
Max. operating pressure port 1 700 bar
Max. operating pressure port 2 700 bar
Max. flow rate 25 l/min
Pressure loss at 12 l/min (fully open) and 32 mm2/s: 35 bar
at 25 l/min (fully open) and 32 mm2/s: 155 bar
Filtration (recommendation) class 17/15/12 according to ISO/DIN 4406
Materials Manifold: corrosion-free material
Cartridge body: hardened corrosion-free steel
Check valve housing: hardened corrosion-free steel
Supporting ring: PTSM