• Operating Pressure: 350 BAR
• Flow: 30 L/min
• Pilot Ratio: 3:1
• Internal Leakage: 0.07 ml/min max at operating pressure
• Temperature Range: -30°C to +120°C (-22°F to +250°F)
• Cavity: T-163A
• Fluids: Mineral-based fluids with viscosities of 7.4 to 420 cSt

• Provides hose break protection, preventing load drift and securely locking pressurized loads.
• Extremely low leakage with heat-treated seat and poppet for extended life. Valve replacement is necessary if load drift occurs due to contamination damage.
• Standard unsealed pilot allows air trapped in the pilot line to be purged from the circuit.

This valve is a pilot-to-open check valve with a non-sealed pilot, steel seat, and non-vented design. It allows free flow from port 2 to port 1 and blocks reverse flow. Pressure at the pilot (port 3) opens the valve from port 1 to port 2, with the required pilot pressure at port 3 being directly proportional to the load pressure at port 1. Pressure at port 2 directly opposes pilot pressure.

The performance curve illustrates the relationship between pressure drop and flow rate, indicating how the valve performs under different flow conditions.

Detailed dimensions and torque specifications are provided for proper installation, with a maximum torque of 33 Nm.

• Adjustment: Nonadjustable (X)
• Cracking Pressure: 30 psi (2 bar) or 75 psi (5 bar)
• Seal-Kits: Buna N (N) or Viton (V)
• Body Material: 6061-T6 aluminum (207 Bar) or steel (350 Bar)
• Body Porting: SAE 6T, SAE 12T, G3/4, NPT3/4, with other options available

• Transmission, engine, and powertrain control
• Building and road construction equipment
• Agricultural and garden machinery
• Forestry and resource management equipment
• Waste disposal equipment
• Other professional mobile and industrial applications