Directional Valves

CV42-M20 — Check Valve
  Selection guide - similar valves.
  PDF file of this page
  STP file for CV42-M20
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CV42-M20 Valve

CV42-M20 Valve symbol

A screw-in, cartridge-style, hydraulic check valve for use as a blocking or load-holding device.

The CV42-M20 allows flow passage from 1 to 2, while normally blocking oil flow in the opposite
direction. The cartridge has a fully guided check which is spring-biased closed until sufficient
pressure is applied at 1 to open to 2.

Hardened seat for long life and low leakage.
Optional bias springs for back-pressure application flexibility.
ISO 7789 cavity.

Operating Pressure: 241 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: Up to 378 lpm (100 gpm)
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 240 bar (3500 psi)
Crack Pressure Defined: Gauge psi evident at 1 at 0.95 lpm (0.25 gpm) attained
Standard Bias Springs at Crack: 0.34 bar (5 psi); 1.7 bar (25 psi); 4.1 bar (60 psi)
Temperature: -40 to 100C (-40 to 212F) with Buna seals;
   -26 to 204C (-15 to 400F) with Fluorocarbon seals;
   -54 to 107C (-65 to 225F) with polyurethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC42-M2; See page 9.142.1_2w
Cavity Tool: CT42-M2xx; See page 8.600.1
Seal Kit: SK42-M2x-T; See page 8.650.1


CV42-M20 Valve Performance Chart


CV42-M20 Valve Dimensions


Cartridge: Weight: 0.43 kg. (0.95 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight:
1.63 kg. (3.60 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.042.1_2w.

CV42-M20 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for CV42-M20 Request a quote.