Valves - Directional Controls - Check Valve - Pilot Operated

DCV10

DOUBLE PILOT CHECK VALVE WITH OPTIONAL THERMAL RELIEF

Overview

Description

The DCV10 is a double pilot operated, hydraulic check valve for use in blocking or load holding circuits.

Operation

The valve allows flow from "V" ports to "C" ports, while normally blocking flow in the opposite direction. Flow will be allowed from "C" to "V" when pressure is applied to the opposite side "V" port. The valve has 4:1 pilot ratio, so at least 25% of the load pressure held at either "C" port is required at the opposite "V" port to open the flow passage. Optional thermal relief valves are available which CAN be on port "C1" or "C2" or on both ports "C1" and "C2".

Features

  • Hardened seat for long life and low leakage.
  • Optional sealed piston.
  • Optional cartridge thermal relief(s).
  • Optional spring ranges.
  • Low pressure drop.
  • Check section is serviceable as a cartridge.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Pilot ratio:
  • 4:1
Check valve spring value:
  • 2.1 bar (30 psi) Standard for seal codes "n" and "v"
  • 6.9 bar (100 psi) Standard for seal codes "ns" and "vs" (sealed options)
Optional thermal relief:
  • 348 ±38 bar (5050 ±550 psi)
Thermal relief reseat:
  • 207 bar (3000 psi) Minimum
Temperature Ratings
Operating fluid temperature:
  • -40 to 120 °C (-40 to 248 °F)
Flow Ratings
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) C to V at 241 bar (3500 psi)
  • 328 ml/min (20 in³/min) V1 to V2 without sealed piston at 241 bar (3500 psi)
Flow performance:
  • See graph
Materials:
  • Body - anodized high strength aluminum alloy. Cartridges - steel with hardened work surfaces and zinc plated exposed surfaces. Pilot piston - hardened steel
Unit weight:
  • 0.68 kg (1.50 lb)
DCV10_Perf(2022-02-24)
DCV10_Dim(2022-02-24)
Seal kit:
  • SK10-2N-T Buna
  • SK10-2V-T Viton
DCV10_Order2(2022-02-24)
POSITION
CODE
DESCRIPTION
DVC10-H-J-S-R
H
Porting
H
2P
1/4-18 NPTF
H
3P
3/8-18 NPTF
H
2B
1/4 BSP
H
3B
3/8 BSP
H
6T
SAE 6
H
8T
SAE 8
J
Seal
J
N
Buna N
J
V
Viton
J
BS
Buna with sealed piston
J
VS
Viton with sealed piston
S
Thermal relief
S
1
Thermal relief on C1, check valve on C2
S
2
Thermal relief on C2, check valve on C1
S
3
Thermal relief on C1 and C2
R
Spring
R
BLANK
Thermal relief option
R
BLANK
2.1 bar (30 psi) N and V
R
BLANK
6.9 bar (100 psi) NS and VS
R
40
2.8 bar (40 psi) N and V
R
70
4.8 bar (70 psi) N and V
R
100
6.9 bar (100 psi) N and V
R
200
13.8 bar (200 psi) N, V, NS and VS
R
300
20.7 bar (300 psi) N, V, NS and VS