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Cartridge Valves - Load Holding Valves - Pilot to close check

KGD

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RE18319-43-01(2023-11-07)
Description

Cartridge valves of type KGD allow free flow from main port 1 to main port 2. The reverse flow from main port 2 to 1 is impossible. The pressure in main port 3 counteracts the pressure in main port 1 at a ratio of 1.8:1 and holds the cartridge valve closed (checking position).

General:
Max. operating pressure:
  • 350 bar (5000 psi)
Max. flow:
  • 160 l/min. (42.3 gpm)
Fatigue cycle life:
  • 10 million cycles at 350 bar
Pilot ratio:
  • 1.8:1
Max. internal leakage:
  • < 0.05 cm³/min
Fluid temperature range:
  • -40 to 110 °C (-40 to 230 °F)
Installation torque:
  • 100 - 110 Nm (135 - 149 ft-lbs)
Weight:
  • 0.3 kg (0.66 lbs)
MTTFD:
  • 150 years see RE 18350-51
Cavity:
  • SUN T-2A
Lines bodies and standard assemblies:
  • Please refer to section “Hydraulic integrated circuit” or consult factory
Fluids:
  • Mineral oil (HL, HLP) to DIN 51524; fast bio-degradable hydraulic fluids to VDMA 24568 (see also data sheet 90221); HETG (rape seed oil); HEPG (polyglycols); HEES (synthetic esters); other hydraulic fluids on request at viscosities of 2.8 to 500 mm2/s (cSt)
Recommended degree of fluid contamination:
  • ISO 4406 20/18/15
Installation position:
  • Optional
Other Technical Data:
  • See data sheet 18350-50
RE18319-43-02(2023-11-07)
RE18319-43-order(2023-11-07)
RE18319-43-dim(2023-11-07)
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