The Wabco 971-002-700-0 or 9710027000 is an emergency relay valve assembly for heavy-duty air brake systems, combining a brake valve and release valve in a single unit. This assembly integrates components equivalent to Wabco 9710023000 and release valve 9630010130. Maximum operating pressure is 123.28 psi, with an adjustable predominance range of 0 to 14.50 psi. The unit operates across a temperature range of -40°C to +80°C. Overall dimensions are 160 x 174.4 x 151.5 mm, with mounting via two 11.0 mm diameter holes spaced 2.8 in apart. Port threads are M22 x 1.5 on ports 1, 12, and 2; M16 x 1.5 on port 4; and a flap exhaust on port 3. Meets OE specification. Available from Pro Gear and Transmission, call us to confirm proper fit for your application.
Features
Combined brake valve and release valve in one assembly (equivalent to Wabco 9710023000 + 9630010130)
Max. operating pressure: 123.28 psi
Adjustable predominance: 0 to 14.50 psi
Operating temperature range: -40°C to +80°C
Overall dimensions: 160 x 174.4 x 151.5 mm
Mounting: two 11.0 mm diameter holes, 2.8 in center-to-center spacing
Tech Specs
- Brand: Wabco
- Part Number: 971-002-700-0 or 9710027000
- Type: Combined brake valve and release valve assembly
- Combines: Wabco 9710023000 and release valve 9630010130
- Max. Operating Pressure: 123.28 psi
- Adjustable Predominance: 0 to 14.50 psi
- Range of Adjustment: 14.50 psi
- Temperature Range: -40°C to +80°C
- Size: 160 x 174.4 x 151.5 mm
- Mounting: 2x 11.0 mm diameter holes
- Distance Between Holes: 2.8 in
- Port Thread 1: M22 x 1.5
- Port Thread 12: M22 x 1.5
- Port Thread 2: 3x M22 x 1.5
- Port Thread 3: Flap Exhaust
- Port Thread 4: M16 x 1.5
- Technical Specification: OE specification
