Throttle and double throttle check valves

Controlling variable flow rates is simple with complete range of Bosch Rexroth throttle-type valves from Hytec South Africa. Available for operation up to 350 bar, and for flow rates of up to 400 litres per minute, the range caters for a range of hydraulic system requirements – from large-scale equipment to mobile hydraulics.

For specification advice to ensure the right throttle or double throttle check valve for your needs, call us today!

View the detailed specifications below.

Throttle and Double Throttle Check Valves Specifications

Double Throttle Check Valve |Type Z2FSK10 (NG10)

  • Maximum operating pressure 210 bar
  • Maximum flow 80 L/min
  • Sandwich plate valve
  • Porting pattern to DIN 24 340 Form A, ISO 4401 and CETOP–RP 121 H
  • Adjustment element: Screw with internal hexagon, lock nut and protective cap
  • For the flow limitation of 2 actuator ports
  • For meter-in or meter-out control

Double Throttle Check Valve | Type Z2FSK6 (NG6)

  • Maximum operating pressure 210 bar
  • Maximum flow 40 l/min
  • Sandwich plate valve
  • Porting pattern to ISO 4401-03-02-0-05
  • Type of adjustment: Hexagon socket head cap screw with locknut and protective cap
  • For limiting the flow in 2 actuator ports
  • For meter-in or meter-out throttling

Throttle and Throttle Check Valve | Types MG and MK (Sizes 6 to 30)

  • Maximum operating pressure 315 bar
  • Maximum flow 400 l/min
  • Suitable for direct in-line installation
  • Pressure and viscosity-dependent

Throttle check valve, Type Z2FS (NG25)

  • Maximum operating pressure 350 bar [5076 psi]
  • Maximum flow 360 l/min [95 US gpm]
  • Sandwich plate valve
  • Porting pattern to ISO 4401-08-08-0-05 and NFPA T3.5.1 R2-D08
  • For limiting the flow of 2 actuator ports
  • Adjustment element: Spindle with hexagon socket
  • For meter-in or meter-out throttling

Throttle check valve, Type Z2FS (NG16)

  • Maximum operating pressure 350 bar [5076 psi]
  • Maximum flow 250 l/min [66 US gpm]
  • Sandwich plate valve
  • Porting pattern to ISO 4401-07-07-0-05 and NFPA T3.5.1 R2-D07
  • For limiting the flow in 2 actuator ports
  • Adjustment element: Spindle with hexagon socket
  • For meter-in or meter-out throttling

Twin throttle check valve, Type Z2FS (NG6)

  • Maximum operating pressure 315 bar
  • Maximum flow 80 l/min
  • Sandwich plate valve
  • Porting pattern according to DIN 24340 form A
  • Porting pattern according to ISO 4401-03-02-0-05 (with locating hole)
  • For supply or discharge throttling
  • For the main or pilot flow limitation of 2 actuator ports

4 adjustment types:

  • Set screw with lock nut and protective cap
  • Lockable rotary knob with scale
  • Spindle with internal hexagon and scale
  • Rotary knob with scale

Throttle Check Valve | Type Z2FS (NG10)

  • Maximum operating pressure 315 bar [4569 psi]
  • Maximum flow 160 l/min [42.3 US gpm]
  • Sandwich plate valve
  • Porting pattern to ISO 4401-05-04-0-05, NFPA T3.5.1 R2 and ANSI B93-7 D05
  • For limiting the main or pilot oil flow of 2 actuator ports
  • For meter-in and meter-out throttling

3 adjustment elements:

  • Lockable rotary knob with scale
  • Spindle with hexagon socket and scale
  • Rotary knob with scale

Speak to our hydraulics division about your factory automation

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