Description
KN31010-G - PRESSURE PROTECTION VALVE
PART NUMBER(S):
Fleet Products: KN31010-G | Replaces OE: Haldex: KN31010, 90555398, 90555396 | Bendix: 802633, 277148, 282133 | WABCO: S9348990050 | Ford: D5HZ2A435A | Navistar: 1612393C91 | Mack: 20QE19308
DESCRIPTION:
Model: Inline Pressure Protection Valve - Accessory Outlets Not Drilled
Vehicles: Heavy-duty trucks and trailers using protected auxiliary air circuits
• Valve Type: Inline, non-adjustable pressure protection valve
• Supply Port: One 1/4" NPT female
• Delivery Port: One 1/4" NPT female
• Opening Pressure: 95 PSI
• Closing Pressure: 75 PSI
• Mounting: Inline thread-to-thread installation
• Dimensions: 4" x 3" x 3"
• Accessory Outlets: Not drilled
• Function: Isolates auxiliary circuits until sufficient primary air-system pressure is available
Applications:
Designed for truck and trailer air systems requiring auxiliary accessories to remain isolated until primary brake-system pressure reaches 95 PSI. It is typically replaced when the valve leaks, opens or closes at the wrong pressure, or fails to protect the primary air supply from auxiliary-system pressure loss.
CROSS-REFERENCE(S):
277148N, 277185, 277222, 277222N, 282133N, 283038, 285539, 285540, 286500, 286500N, 286903, 287827, 287827N, KN31004, N15759DD, MIDKN31010, MID60555398, 6944856, 20QE2101P3, 20QE2159R, 1612393, 625805, 625805C91, 4000206, 110258, 283038, 60555398, 90555401, 9348994030, HAL90555398, R90555398
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the valve has one 1/4" NPT supply port and one 1/4" NPT delivery port.
✔ Install inline between the primary air supply and the protected auxiliary circuit.
✔ Verify the system requires a non-adjustable 95 PSI opening and 75 PSI closing pressure.
✔ Apply air-system-compatible thread sealant without allowing sealant to enter the valve.
✔ Charge and leak-test both circuits, then verify the auxiliary circuit closes as pressure drops.
Warranty Information
