Air Products
Tractor Protection Valve
Prevents loss of tractor brakes in case of trailer breakaway or loss of air pressure. Automatically closes off lines and vents trailer side supply between 20 to 45 psi.

Part Number Supply In Port (NPT) Supply Out Port (NPT) Control In Port (NPT) Control Out Port (NPT)
7700 1/4" 1/2" 1/4" 1\2"

77-5 Repair Kit

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