Overview
The Crane 373 125 S 200 WOG swing check valve combines cast-iron durability with bronze trim construction for reliable backflow prevention in industrial and commercial piping systems. This valve is designed to allow fluid flow in one direction while automatically blocking reverse flow, making it essential for pump protection, safety, and system integrity in water, steam, and general industrial applications.
Key Features
- Swing check valve design with solid bronze disc for corrosion resistance
- Cast iron body with bronze trim for long service life
- 125 PSI working pressure rating (200 WOG maximum)
- Y-pattern or straight-through flow paths available depending on inlet/outlet configuration
- Bolted-on cover for easy maintenance and disc replacement
- Suitable for water, steam, and neutral fluid service
Technical Specifications
- Model: 373 125 S 200 WOG
- Valve Type: Swing Check Valve
- Body Material: Cast Iron
- Trim Material: Bronze
- Pressure Rating: 125 PSI (200 WOG)
- Available Sizes: 2″ to 6″ nominal diameter
- Connection Type: Flanged or threaded (size-dependent)
- Disc Type: Solid Bronze
- Cover: Bolted
Typical Applications
- Centrifugal pump discharge protection (backflow prevention)
- Cooling tower and chiller water systems
- Low-pressure steam and condensate lines
- Building water supply and recirculation loops
- Process water and neutral fluid conveyance
- Industrial HVAC and hydronic heating/cooling systems
Compatibility & Replacements
Compatible With
- Standard 150 lb ANSI flanged piping (6″ flanged models)
- NPT threaded connections (smaller diameter models)
- Pump discharge lines rated 125 PSI or lower
- Industrial water and steam distribution networks
Replaces / Drop-In Replacement For
- Crane model 37 swing check valves (similar pressure ratings)
- Other 125 PSI swing check valves in equivalent sizes
- Verify inlet/outlet size, connection type, and pressure rating before ordering
Works With
- Centrifugal and rotary pumps (as discharge check valve)
- Standard industrial piping systems (flanged, NPT threaded)
- Municipal water distribution and treatment systems
- Commercial HVAC hydronic loops and chilled water systems
- Light industrial steam systems up to 200 WOG
