check valve

inline check valve

  • Tube connection check valve RHD, RHV & RHZ avilable in 6mm to 42mm
  • Steel poppet type construction
  • Max. Working pressure 350 bar
  • Prevents flow in reverse direction
  • Choice of cracking pressure 0.5 to 15 bar

Modular Check Valve

Description

These modular valves are available with the pilot operated check valve facility on either A or B or both A and B ports. The hydraulic opening operation for free flow in reverse direction is achieved by means of internal pilot pressure available from the other working port.

To ensure proper closure of both valve poppets, both user connections should be unloaded when the control valve is in the neutral position by connecting with the return line.

Technical Specifications

  • Construction
  • Modular, Seat type, Internally pilot operated.
  • Mounting
  • Modular type, conforming to IS 10187 ISO 4401-AB-03-04-A, DIN 24340.
  • Mounting position
  • Optional.
  • Direction of flow
  • Free flow from port A to A1 or from B to B1. Piloted open flow in opposite direction.
  • Operating pressure
  • 315 bar for all ports.
  • Cracking pressure
  • 1 bar.
  • Area ratio . . . Pilot piston : Poppet seat
  • 2.6 : 1
  • Viscosity range
  • 10 cSt to 380 cSt
  • Fluid temperature range
  • -10 ➊c to + 80 ➊c
  • Nominal flow handling capacity
  • 35 l / min.
  • Mass
  • 0.86 kg.

subplate type check valve

  • Tube connection check valve RHD, RHV & RHZ avilable in 6mm to 42mm
  • Steel poppet type construction
  • Max. Working pressure 350 bar
  • Prevents flow in reverse direction
  • Choice of cracking pressure 0.5 to 15 bar

pilot operated check valve

Description

Seat type valves with free flow from port A to port B.They give leak free closure in opposite direction.

Opening of the flow direction B to A is effected by pressurisation of pilot piston at port X.

Three sizes in both Threaded & Subplate mounting.

Subplate mounting interface conforms to ISO 5781.

Technical Specifications.

  • Construction
  • Seat type valve,with decompression poppet
  • Mounting style
  • Threaded port or subplate mounting.
  • Subplate mounting interface
  • As per ISO 5781
  • Mounting position
  • Optional.
  • Flow direction
  • Free flow from A to B. Piloted flow from B to A.
  • Cracking pressure
  • 1 bar.
  • Operating pressure
  • 315 bar.
  • Area ratios
  • Design series 01 thru 09 Design series 11 thru 19
  • Hydraulic medium
  • Mineral oil
  • Viscosity range
  • 10 cSt to 380 cSt.
  • Fluid temperature range
  • -20 °c to + 80 °c
  • Fluid cleanliness requirement
  • As per ISO 16 / 13.
  • Max. flow handling capacity
  • NG10 .. 80 l / min.
    NG20 .. 160 l / min.
    NG30 .. 350 l /min.