Product Overview
The KOZO CF8M Pressure Seal Swing Check Valve is designed for high-pressure corrosive process systems where stainless-steel construction and automatic non-return protection are required. Forward flow opens the disc; reverse flow closes it automatically to help prevent backflow.
Key Design Features
- Pressure-seal closure: Uses internal pressure to increase sealing load at the bonnet joint.
- CF8M stainless body: Reference cast stainless construction for compatible corrosive service.
- Swing-disc operation: Automatic non-return function without an actuator.
- High-pressure family: Available up to Class 2500 depending on configuration.
- RTJ / butt-weld options: Suitable for high-pressure piping systems.
Technical Specifications
| Valve Type | Pressure Seal Swing Check Valve |
|---|---|
| Body Material | ASTM A351 CF8M |
| Size Range | 2 in – 36 in |
| Pressure Classes | ASME Class 150 – 2500 |
| Design Standard | BS 1868 / ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| End Connection | RTJ / Butt Weld |
| Inspection & Testing | API 598 |
| Operation | Automatic Non-Return |
Typical Applications
- High-pressure chemical process service
- Refinery and petrochemical systems
- Steam and utility piping where CF8M is compatible
- Corrosive high-pressure process lines
Selection Notes
Disc dynamics, flow velocity, orientation and pressure drop should be evaluated to ensure stable swing-check operation. Temperature limits depend on trim, seat, bolting and the full pressure class.
How to Specify This Valve
Please provide size, pressure class, medium, design pressure, temperature, body/trim material, end connection and required testing.
