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Cartridge Valves - Directional Control Valves - Check Valve - Pilot Operated

DC08-41

DUAL PILOT OPERATED CHECK VALVE WITH PILOT RATIO 5:1

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Overview

Description

The DC08-41 is a cartridge style, dual pilot operated check valve for use in blocking or load holding circuits with general purpose hydraulic fluids.

Features

  • High pilot ratio for high ratio cylinders and rod-end load holding
  • Can replace a counterbalance valve in some applications
  • Hardened seat for long life and low leakage
  • Low pressure drop
  • Space saving: two PO checks in one 4-ported cartridge
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 350 bar (5075 psi)
Burst pressure:
  • 966 bar (14000 psi)
Pilot ratio:
  • 5:1
Flow Ratings
Flow rating:
  • See graphs
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) Max at 207 bar (3500 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 90 °C (-40 to 194 °F)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 20/18/14 per ISO 4406
Unit weight:
  • 0.07 kg (0.16 lb)
Internal wetted surface area:
  • 110 cm² (17 in²)
DC08-41_Perf1(2022-09-02) DC08-41_Perf2(2022-09-02) DC08-41_Perf3(2022-09-02)
DC08-41_Dim(2022-02-24)
Cavity:
  • VC08-4
Cartridge installation torque:
  • 25.8 to 28.6 N-m (19 to 21 ft-lb)
Maximum allowable torque:
  • 54.2 N-m (40 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-4N-OOO Buna N
  • SK08-4V-MMM Fluorocarbon
  • SK08-4U-OOO Polyurethane
Housings:
DC08-41_Order(2022-02-24)

Model Options

DC08-41-H-J-R
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
6TD
Ductile Iron SAE 6
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
R Spring
CODE
DESCRIPTION
25
25 psi Bias Spring
42
42 psi Bias Spring
135
135 psi Bias Spring

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