Overview
The Strataflo 385 check valve is a precision-engineered check valve designed for critical one-way flow control in hydraulic, pneumatic, and fluid power applications. The No. 385 check valve is made of a one-piece cast brass body, rated for 200lb working pressure with 3″ NPT threaded connections on both ends. This all-position check valve prevents backflow and maintains system integrity across industrial, agricultural, and mobile equipment installations.
Key Features
- Designed to operate in any position, a sensitive spring has been added to close the poppet automatically
- The rubber poppet is fully-formed around a solid steel insert to provide greater strength in commercial applications
- Each valve is tested twice for casting integrity and backflow prevention
- All valves are 100% American-Made and built to last
- NPT threaded connections for standard pipe integration
Technical Specifications
New valve: Standard female threads on both ends, Cv factor of 185. Original valve: 2-1/2″ valve body with 3″ male thread on both ends, Cv factor of 69. Cv is flow (GPM) with a 1 psi differential pressure.
Typical Applications
The Strataflo 385 is suitable for:
- Hydraulic pump discharge protection
- Hydraulic accumulator isolation
- Counterbalance valve pilot lines
- System priming and air removal
- Mobile equipment and industrial hydraulic systems
- Aerospace and heavy equipment hydraulic circuits
Compatibility & Replacements
Compatible With
- Hydraulic systems operating at 200 psi or less
- Pneumatic systems with appropriate fluid compatibility
- Fluid power circuits using 3″ NPT pipe connections
- Mobile and stationary equipment hydraulic networks
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Strataflo 385 is available in multiple configurations with different thread types (FNPT, MNPT) and poppet materials. Original equipment may use different seal materials or thread dimensions.
Works With
- ISO 1219 hydraulic circuit standards
- National Pipe Thread (NPT) connections
- Hydraulic fluid systems (mineral oil and biodiesel compatible)
- Mobile equipment manifold systems
