The Wabco unloading valve 975-303-474-0 or 9753034740 is an OE-specification air system valve built without a one-way valve and equipped with a tire inflating valve. It regulates supply air with a cut-out pressure of 117.48 psi and an opening pressure of 174 psi, and is rated for a maximum operating pressure of 362.6 psi. The valve carries multiple port threads including M22 x 1.5, M16 x 1.5, M12 x 1.5 and a Union 0.79 in. connection, and it mounts through two 8.8 mm holes. Operating temperature range runs from -40 C to +80 C. Call us to confirm proper fit for your application.
Features
Wabco OE-specification unloading valve, part number 975-303-474-0 or 9753034740
Cut-out pressure 117.48 psi, opening pressure 174 psi
Maximum operating pressure 362.6 psi
Type without one-way valve, version with tire inflating valve
Port threads: M22 x 1.5, M16 x 1.5, M12 x 1.5, plus Union 0.79 in.
Mounts through two 8.8 mm holes; overall size 172 x 108 x 91 mm
Operating temperature -40 C to +80 C
Tech Specs
- Brand WABCO
- Part type Premium original quality
- Product category Device
- Calculated Volume (dm³)1.69
- Cut-out pressure 117.48 psi
- Max. operating pressure 362.6 psi
- Mounting2x Ø 8.8 mm
- Opening pressure 174 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 thread 4M12 x 1.5
- Port threadsM22 x 1.5
- Technical specification OE specification
- Temperature range-40°C to +80°C
- Type Without one way valve
- Version With tire inflating valve
- Size (mm x mm x mm)172 x 108 x 91
