Description
205105-G - ST-1 PRESSURE RELIEF SAFETY VALVE - 1/4"-18 NPT, 150 PSI
PART NUMBER(S):
Fleet Products: 205105-G | Replaces OE: Bendix: 205105 | Automann: 170.205105 | Haldex: KN31200 | WABCO: 9638800510 | Navistar: 1676692C | Caterpillar: 3Y-9065 | Velvac: 030074 | PAI: EM56780
DESCRIPTION:
Model: Bendix ST-1 Style Pressure Relief Safety Valve
Vehicles: Commercial trucks and trailers using compatible air dryers, reservoirs, and air brake systems
• Valve Type: Pressure relief safety valve
• Inlet Thread: One 1/4"-18 NPT
• Pressure Setting: 150 PSI ±5 PSI
• Vent Opening: 0.125", Height: 3.240"
• Operating Temperature: -40°F to 200°F (-40°C to 93°C)
• Function: Relieves excess air system pressure
• System Use: Air dryers, reservoirs, and pneumatic circuits
Applications:
Designed to protect compatible commercial vehicle air systems from excessive pressure. The valve opens when system pressure reaches its specified setting and vents air to help protect the air dryer, reservoir, and related pneumatic components.
CROSS-REFERENCE(S):
205105N, 205105BXW, 205105P, BEN205105N, BWN205105, AT205105, 170205105, 280056, 285839, 800350, N1178AA, N1178BA, 9638800040, 9638800070, 9638800080, S9638800040, S9638800070, S9638800080, 112407, 112HD, 14067, 170.205015, 30074, 4-17-1, 36998, 5678, 56780, 745-205105N, BEN-205105, BER-205105, BW 205105, BW205105, BW205105N, BX205105, BX205105N, F224724, LSV-5678, R955205105X, S-C291, SC291, TDAR955205105N, WM342, WM342B
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 1/4"-18 NPT valve set at 150 PSI.
✔ Fully depressurize the air system before removing the original valve.
✔ Install with the vent opening directed away from wiring and sensitive components.
✔ Apply air-system-compatible sealant without blocking the valve passage.
✔ Pressurize the system and inspect the valve connection for air leaks.
Warranty Information