Valves - Directional Controls - Check Valve - Pilot Operated

DCV08

DOUBLE PILOT CHECK VALVE WITH OPTIONAL THERMAL RELIEF

Overview

Description

The DCV08 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 followed 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

Features

  • Hardened seat for long life and low leakage.
  • Optional sealed piston.
  • Optional spring ranges.
  • Low pressure drop.
  • Check section is serviceable as a cartridge.

Ratings

Pressure Ratings
Pressure rating
241 bar (3500 psi)
Pilot ratio
4:1
Check valve spring value
1.7 bar (25 psi) Standard for seal codes "n" and "v"
6.9 bar (100 psi) Standard for seal codes "ns" and "vs" (sealed options)
Temperature Ratings
Maximum 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

Properties

Materials
Body - anodized high strength aluminum alloy. Cartridges - steel with hardened work surfaces and zinc plated exposed surfaces. Pilot piston - hardened steel
Cartridge weight
0.57 kg (1.25 lb)

Performance

DCV08_Perf_Chrt

Dimensions

DCV08_Dim_Dwg

Materials

Materials

Cartridge ( CV08-20 ): Weight: 0.08 kg (0.17 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O‑rings and polyester elastomer back-ups standard.

Pilot Piston: Hardened Steel.

Ported Body : Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ; consult factory.

Product Weight: 0.58 kg (1.28 lb).

Installation Specifications

Accessories

Seal kit
SK08-2N-T Buna
SK08-2V-T Viton

Order code

DCV08_Order