Wabco 975-303-473-0 or 9753034730 is an unloading valve for air brake systems. It regulates and unloads air pressure in the circuit, with a cut-out pressure of 117.48 psi and an opening pressure of 174 psi, and the maximum operating pressure is 362.6 psi. This version has a one-way valve, so pressure is not bled back out of the circuit, and it also carries a tire inflating valve. Ports are M22 x 1.5, M16 x 1.5 and M12 x 1.5, and the body mounts with 2 holes of 8.8 mm. Supersedes part number S975-303-473-0. A genuine Wabco part from Pro Gear and Transmission; call us to confirm fit.
Features
Wabco unloading valve, 975-303-473-0 or 9753034730
Opening pressure 174 psi, cut-out pressure 117.48 psi
Maximum operating pressure 362.6 psi
Built-in one-way valve and tire inflating valve
Ports M22 x 1.5, M16 x 1.5 and M12 x 1.5, 2 mounting holes of 8.8 mm
Supersedes part number S975-303-473-0
Temperature range -40°C to +80°C
Tech Specs
- Brand WABCO
- Part type Premium original quality
- Product category Device
- Calculated Volume (dm³)1.661
- Cut-out pressure 117.48 psi
- Max. operating pressure 362.6 psi
- Mounting 2x Ø 8.8 mm
- Opening pressure174 psi
- Operational range8.70+5.80 psi
- Port thread 1M22 x 1.5
- Port thread 1-2M16 x 1.5
- Port thread 21M22 x 1.5
- Port thread 22M12 x 1.5
- Port thread 3Union Ø 0.79 in
- Port threadsM22 x 1.5
- Technical specification OE specification
- 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
