Wabco 975-303-463-0 or 9753034630 is an unloading valve built with a one-way valve and a tire inflating valve. Its opening pressure is 174 psi, its cut-out pressure is 123.28 psi and its maximum operating pressure is 362.6 psi, with an operating temperature range of -40°C to +80°C. An unloader valve regulates the air pressure in a commercial vehicle's brake circuits and relieves pressure from them when needed. Two mounting points of 8.8 mm diameter locate the valve. A genuine Wabco part from Pro Gear and Transmission. Call us to confirm proper fit for your air system.
Features
Opening pressure 174 psi, cut-out pressure 123.28 psi
Maximum operating pressure 362.6 psi
Version with tire inflating valve and one-way valve
Port threads M22 x 1.5, M16 x 1.5 and M12 x 1.5
Supersedes part number(s) S975-303-463-0
Tech Specs
- Cut-out pressure: 123.28 psi
- Opening pressure: 174 psi
- Maximum operating pressure: 362.6 psi
- Mounting: 2x Ø 8.8 mm
- Port thread 1: M22 x 1.5
- Port thread 1-2: M16 x 1.5
- Port thread 21: M22 x 1.5
- Port thread 22: M12 x 1.5
- Port thread 3: Union Ø 0.79 in
- Temperature range: -40°C to +80°C
- Type: With one way valve
- Version: With tire inflating valve
- Size (mm x mm x mm): 169 x 108 x 91
- Calculated volume: 1.661 dm³
