
28
Tractor Spring Brake Valves
Midland
KN28030X
Inversion Valve
Provides modulated control of spring
brakes (emergency) in the event of loss
of service pressure in the rear axle ser-
vice system (primary).
Midland
KN32040X
Quick Release Valve
With Two Way Check
Primarily used to deliver hold-off air pres-
sure to the emergency (parking) side of
spring brakes. Prevents compounding of
service (air) and parking (spring) brake
applications through the two way check
valve.
Part No.
Supply
Ports
Reservoir
Ports
Delivery
Ports
Control
Ports
Crack
Pressure
Wght.
Core
Class
Core
Grp.
Minor
Maint. Kit
Comments
KN28030X 1 - 1/4" PT 1 - 1/4" PT 1 - 1/4" PT 1 - 1/4" PT N/A 2 lbs. WE Y3 N/A
Supply
Control
Delivery
Reservoir
Control
Delivery
Delivery
Part No.
Delivery
Ports
Control
Ports
Crack
Pressure
Wght.
Core
Class
Core
Grp.
Minor
Maint. Kit
Comments
KN32040X 2 - 1/4" PT 2 - 1/4" PT N/A 1 lbs. WD Y2 VK1018M
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