A screw-in, cartridge-style, pilot-operated, hydraulic check valve for use in blocking or load-holding circuits.

The PC08-30 allows flow from 2 to 3, while normally blocking flow from 3 to 2. Flow will be allowed from 3 to 2 when sufficient pressure is applied at 1.
The cartridge has a 3:1 pilot ratio, meaning that at least one-third of the load pressure held at 3 is required at 1 to open the valve.
The check is spring-biased to assure holding in static or no-load conditions. A sealed pilot piston option is available.

• Hardened seat for long life and low leakage.
• Optional sealed piston.
• Optional spring ranges.
• Compact size.

Operating Pressure: 240 bar (3500 psi)
Flow: up to 26 lpm (7 gpm)
Maximum Internal Leakage at 207 bar (3000 psi):
3 to 2: 0.10 ml/minute (2 drops/minute)
   2 to 1 without sealed piston: 115 ml/minute (7 cu. in./minute)
   2 to 1 with sealed piston: zero leakage
Pilot Ratio: 3:1
Check Spring Bias: 1.72 bar (25 psi) standard; with sealed piston option: 6.2 bar (90 psi) minimum
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 (-65 to 225°F) with polyurethane and urethane seals
Filtration: See HydraForce technical reference information 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 HydraForce technical reference information page 9.020.1
Cavity: VC08-3; See HydraForce technical reference information page 9.108.1_3w
Cavity Tool: CT08-3xx; See page 8.600.1
Seal Kit: SK08-3x-TM; See page 8.650.1


PC08-30_Perf _Chrt


PC08-30_Dim _Dwg


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

Standard Ported Body: Weight:
0.27 kg. (0.60 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.