Description
277147-G - PR-2 PRESSURE PROTECTION VALVE - 65 PSI
PART NUMBER(S):
Fleet Products: 277147-G (New) | Replaces OE: Bendix: 277147, 277177, 279505, 283590, 285537 | Automann: 170.277147 | Haldex: KN31000, KN31060 | Navistar: 347082R92, 1676-715-C | Mack: 20QE2119P2, 20-QE-2101 | Volvo: 3915330 | Meritor: R955277147N, RKN31060 | Sealco: 1300 | Tectran: 14548, TV277147 | Torque: TR277147 | Tramec Sloan: 401286 | PAI: EM55480
DESCRIPTION:
Model: Bendix PR-2 Pressure Protection Valve
Vehicles: Commercial trucks and buses using compatible auxiliary air circuits
• Valve Type: Normally closed pressure protection valve
• Ports: 1/4"-18 NPT supply and delivery
• Pressure Setting: 65 PSI ±5 PSI
• Mounting Holes: Two 17/65" holes
• Hole Spacing: 1.25" center-to-center
• Operating Temperature: -40°F to 200°F (-40°C to 93°C)
• Actuation: Pneumatic and pressure-sensitive
• Adjustment: Adjustable pressure threshold
• Delivery Check Valve: Not included
• Locking: Lock-wire ready
• Function: Delays auxiliary airflow until minimum pressure is reached
Applications:
Designed to protect the primary air brake system by withholding air from an auxiliary circuit until supply pressure reaches approximately 65 PSI. The valve opens at the specified pressure and closes as pressure falls, helping preserve air for essential braking functions.
CROSS-REFERENCE(S):
277147N, 277147P, 277147RX, 277147X, 277147BXR, 277147BXW, 277147CX, 2771478, 279505N, BEN277147, BEN-277147, BDX277147, BWN277147N, BW 277147N, BW277147, BW277147N, BW277177, BW279505, BW285537, BX277147, BX277147N, BX277177, BX277226, BX277226N, BX279505, BX285537, OR277147X, 170277147, AM170277147, 745-283590N, 745-277147N, 745277147N, R955277147X, TDAR95527714, 3915330, 20-QE-2101, 20QE2101, 11669104, 745X277147, BAN277147, NS277147, 5548, 55480, LPR-5548, BER-277147, S-D817, SD817, 0587-277147P, 3511351, BD817GRP, E-BN277147N, EBN277147N, FC277147, 12C-7-16, MPN277147, 060-277147N, 1411318, 846218, 109157, 80801, 289970, 113618, L13530, XL22700, 2M9348, E9228724, 1027907, 6D0918, 9228724, C6TA2A435A, AXA0253X, 76022841, 763403, 31A1207, AS30272, 19606FX, 36651, F224672, 4820-114-7543, 48201147543
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment and pressure setting before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the application requires a 65 PSI pressure protection setting.
✔ Verify the 1/4"-18 NPT supply and delivery port routing.
✔ Confirm the two-hole mounting pattern and 1.25" center spacing.
✔ Do not install where reverse delivery pressure requires a check valve.
✔ Pressurize the system and verify opening pressure, closing response, and leak-free operation.
Warranty Information
