
11
Relay Valves
Midland
KN28065X
2 Port Delivery
Used to apply and release service brakes
on tractor or trailer. Can be used to con-
trol application and release of spring
brakes on tractor. Incorporates anti-com-
pounding feature to prevent simultaneous
service and spring brake application.
Midland
KN28071X, KN28140X
2 Port Delivery
Used to apply and release service brakes
on tractor or trailer. Can be used to con-
trol application and release of spring
brakes on tractor. Incorporates anti-com-
pounding feature to prevent simultaneous
service and spring brake application.
KN28140X
Shown
Control
Control
Supply
Supply
Delivery
Control
Control
Supply
Delivery
Cover
Part No.
Supply
Ports
Delivery
Ports
Control
Ports
Crack
Pressure
Wght.
Core
Class
Core
Grp.
Minor
Maint. Kit
Comments
KN28065X 2 - 1/2" PT 2 - 1/2" PT 2 - 1/4" PT 4.0 ±1 PSI 3 lbs. VF V5 VK1016M
Part No.
Supply
Ports
Delivery
Ports
Control Ports
Crack
Pressure
Wght.
Core
Class
Core
Grp.
Minor
Maint. Kit
Comments
KN28071X 1 - 1/2" PT 2 - 1/2" PT 1 - 1/4" PT 1 - 1/8" PT 4.0 ±1 PSI 3 lbs. VH V7 VK1016M Cover, as shown
KN28140X 1 - 1/2" PT 2 - 1/2" PT 1 - 1/4" PT -- 4.0 ±1 PSI 3 lbs. VH V7 VK1016M Cover, rotated 90°
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