975-303-061-0 or 9753030610 is a genuine Wabco unloading valve, a combined unloading valve for air systems. It opens at 174 psi, with a cut-out pressure of 117.48 psi and a maximum operating pressure of 362.6 psi, and it is rated for -40°C to +80°C. This version has no one way valve and no tire inflating valve. Two mounting holes of 8.8 mm each secure it, and the ports use M22 x 1.5 and M12 x 1.5 threads. Supersedes part number S975-303-061-0. Sold by Pro Gear and Transmission.
Features
Opening pressure: 174 psi
Cut-out pressure: 117.48 psi
Maximum operating pressure: 362.6 psi
Temperature range: -40°C to +80°C
Mounting: two holes, 8.8 mm each
Port threads M22 x 1.5 and M12 x 1.5
Without one way valve and without tire inflating valve
Tech Specs
- Brand: Wabco
- Part number: 975-303-061-0
- Type: Combined unloading valve, without one way valve
- Version: Without tire inflating valve
- Opening pressure: 174 psi
- Cut-out pressure: 117.48 psi
- Maximum operating pressure: 362.6 psi
- Temperature range: -40°C to +80°C
- Mounting: 2 x 8.8 mm
- Port threads: M22 x 1.5 and M12 x 1.5
- Union port diameter: 0.79 in
- Calculated volume: 1.063 dm³
- Size: 164 x 108 x 60 mm
