Overview
The Strataflo 2004 F check valve in 2-1/2″ size combines proven engineering with durable construction for dependable fluid control in commercial and industrial settings. Made of a one-piece cast brass body, this model is built to prevent backflow while operating reliably in any orientation.
Key Features
- Designed to operate in any position with a sensitive spring that closes 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 for standard pipe connections
Technical Specifications
The 2-1/2″ Strataflo 300 series check valve offers the following specifications:
- Nominal Size: 2-1/2″
- Connection Type: NPT threaded
- Body Material: Cast brass
- Poppet Type: Rubber
- Pressure Rating: 400 psi (typical for Series 300)
- Maximum Temperature: 225°F
- Flow Coefficient (Cv): 185 (new valve with standard female threads on both ends)
- Applications: Water, non-potable fluids, industrial applications
- Origin: American-made
Typical Applications
The Strataflo No. 300 check valve is suitable for:
- Municipal and commercial water supply systems
- Pump discharge protection and backflow prevention
- Industrial fluid circulation and distribution
- HVAC and hydronic heating systems
- General-purpose industrial fluid control
Compatibility & Replacements
Compatible With
- Standard NPT-threaded pipe and fitting systems
- Potable and non-potable water systems
- Hydraulic and industrial fluid circuits
- Pump discharge and line protection applications
Replaces / Drop-In Replacement For
- Strataflo No. 300 check valves in matching sizes
- Other brass body check valves with similar NPT thread size and pressure rating
Works With
- Standard plumbing and industrial piping systems
- Water treatment and distribution equipment
- Pump and compressor protection systems
- Any fluid system rated for 400 psi / 225°F operation






















