Product Description
The Bendix 800375 SC-3 Single Check Valve is a heavy-duty pneumatic component designed to control the direction of compressed air in commercial vehicle air brake systems. Featuring a durable brass body and 1/4-inch NPT threaded connections, this valve allows compressed air to flow in one direction while preventing reverse airflow.
Single check valves help maintain proper pressure isolation between different sections of an air brake system. By preventing compressed air from flowing backward, the SC-3 helps protect system components and supports dependable operation of air reservoirs and associated pneumatic equipment.
The Bendix 800375 features a straight-body configuration with a female inlet and male outlet, making it suitable for compatible commercial truck and trailer air brake installations.
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Genuine Bendix SC-3 single check valve
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Manufacturer Part Number: 800375
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1/4"-18 NPT female inlet
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1/4"-18 NPT male outlet
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Straight brass body construction
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Allows compressed air to flow in one direction
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Prevents reverse airflow through the valve
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Helps maintain proper air pressure isolation
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Spring-loaded internal check valve mechanism
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Pre-applied thread sealant on the male connection
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Suitable for compatible air brake reservoir and pneumatic circuits
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Corrosion-resistant brass construction
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Compact design for convenient installation
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Designed for heavy-duty commercial vehicle service
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New replacement valve
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Sold individually
The Bendix SC-3 operates automatically in response to air pressure. When inlet pressure is sufficient to open the check mechanism, compressed air flows through the valve toward the outlet. When pressure attempts to reverse direction, the internal check mechanism closes to help prevent backflow.
Common cross-reference numbers include Bendix 5003990, 5003527, 229603, Automann 170.800375, Volvo 3092738, Velvac 034044, and Newstar S-26023.
Before ordering, verify the existing valve part number, inlet and outlet thread sizes, and required airflow direction. The Bendix 800375 has a female inlet and male outlet and should not be confused with other SC-3 configurations featuring different port sizes.
Bendix's official parts guide confirms 800375 as the 1/4-inch female-inlet, 1/4-inch male-outlet single check valve.
