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: ΔP = 57.7 x ΔT (where ΔP is in psi; ΔT 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.