Directional Valves

CV12-20 — Check Valve
  Selection guide - similar valves.
  PDF file of this page.
  STP file for CV12-20.
  Request a quote.

CV12-20 Valve

SYMBOL:
CV12-20 Valve symbol

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

OPERATION
The CV12-20 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.

FEATURES
• Hardened seat for long life and low leakage.
• Optional bias springs for back-pressure application flexibility.
• Fully guided check assembly.
• Cost-effective cavity.

RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 420 bar (6090 psi)
Flow: Up to 95 lpm (25 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 16.4 cc/minute (1 cu. in./minute) attanined
Standard Bias Springs at Crack: 0.34 bar (5 psi); 1.7 bar (25 psi); 4.1 bar (60 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with Fluorocarbon seals;
   -54° to 107°C (-56° to 225°F) with polyurethane or urethane 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: VC12-2; See page 9.112.1_2w
Cavity Tool: CT12-2xx; See page 8.600.1
Seal Kit: SK12-2x-T; See page 8.650.1

PERFORMANCE:

CV12-20 Valve Performance Chart
  DIMENSIONS:CV12-20 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.18 kg. (0.40 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 0.57 kg. (1.25 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar
(3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.012.1_2w.
  ORDERING CHART:

CV12-20 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for CV12-20 Request a quote.