The PP-7 Style Control Valve is an on/off control valve activated by pressure.
It will automatically get back to the exhaust (button out) position if supply pressure is under the minimum level required.
The valve can be manually operated to either position when pressure is above the required minimum.
The PP-7 Style Control Valve is designed to control the tractor protection system and is normally known as the trailer air supply valve.
The valve uses an air operated interlock in the lower body which will activate the trailer brakes if the tractor spring brakes are applied.
The interlock purpose is ensuring that the tractor spring brake just can be applied if the trailer spring brakes are also applied .
- Automatic pressure release at 40 PSI.
- Non-override at 25 PSI.
- 1/8? NPT supply and control ports.
- 1/4? NPT delivery port.
- 1/4" threaded exhaust port.
- Shaft Size: 5/16?.
Comes with Safety Caps to Protect the Threads and Mechanism prior Installation.
May also Work as a Replacement for Part: Automann 170.288241, Bendix 288241, Bendix 106113, Dayton AV288241, Euclid E-BN288241N, Keene K288241, Midwest WA288241, Newstar S-B285, Velvac 034079.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).
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