Directional Valves

CV10-28 — Check Valve with Thermal Relief
   Selection guide - similar valves.
   PDF file of this page.
   STP file for CV10-28.
   Request a quote.

CV10-28 Valve SYMBOL:
CV10-28 Valve symbol
DESCRIPTION
A screw-in, cartridge-style, hydraulic check valve for use as a blocking or load-holding device.
The cartridge incorporates a low flow thermal relief valve intended to prevent cylinder damage
resulting from temperature-induced pressure intensification.

OPERATION
The CV10-28 allows flow from 1 to 2, while blocking oil flow in the opposite direction. If the pressure
at 2 exceeds the thermal relief valve setting, a small amount of oil will be allowed to pass from 2 to 1,
preventing cylinder damage from pressure intensification.
Note: The relief valve feature is not intended for use in dynamic pressure limiting applications. Consult factory.

FEATURES
• Hardened seat for long life and low leakage.
• Industry-common cavity.

RATINGS
Formula for Thermal Expansion: ?P = 57.7 x ?T (where ?P is in psi; ?T is in °F)
Operating Pressure: 241 bar (3500 psi)
Proof Pressure: 390 bar (5700 psi)
Thermal Relief Settings:
    05
   34.5 48.3 bar (500 700 psi)
    10    69.0 93.1 bar (1000 1350 psi)
    20    137.9 172.4 bar (2000 2500 psi)
    25    172.4 217.2 bar (2500 3150 psi)
    30    206.9 262.1 bar (3000 3800 psi)
    40    275.9 344.8 bar (4000 5000 psi)
    45    310.3 386.2 bar (4500 5600 psi)
Flow: up to 45 lpm (12 gpm)
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 240 bar (3500 psi)
Standard Check Bias Springs at Crack: 4.5 bar (65 psi)
Check 1 to 2 Crack Pressure Defined: Gauge bar (psi) evident at 1 at 16.4 cc/minute
   (1 cu. in./minute) attained at 2
Temperature: -40 to 100 °C (-40 to 212 °F) with Buna seals;
   -26 to 204 °C (-15 to 400 °F) with Fluorocarbon 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: VC10-2; See page 9.110.1_2 w
Cavity Tool: CT10-2xx; See page 8.600.1
Seal Kit: SK10-2x-T; See page 8.650.1

PERFORMANCE:

CV10-28 Valve Performance Chart
  DIMENSIONS:


CV10-28 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.08 kg (0.18 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O‑rings and polyester elastomer back-ups standard.

Standard Ported Body:
Weight: 0.16 kg (0.35 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.
See page 8.010.1_2 w
  ORDERING CHART:

CV10-28 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for CV10-28 Request a quote.