Product Overview
The KOZO Non-Slam Axial Flow Check Valve is designed for fast-response backflow prevention in oil, gas, compressor and industrial process piping. The disc moves axially with the flow path and is typically spring-assisted, allowing rapid closure as forward velocity decays.
Why Axial Flow?
An axial-flow or nozzle-style check valve is selected where fast closure and reduced reverse-flow velocity are important. Compared with a conventional swing check valve, the shorter disc travel can help reduce the severity of pressure transients in suitable systems.
Key Design Features
- Axial disc movement: Short travel for rapid response.
- Spring-assisted closure: Helps close the valve before significant reverse flow develops.
- Streamlined flow path: Designed to reduce turbulence and pressure loss.
- Wide pressure range: Product family up to Class 2500 depending on design.
Technical Specifications
| Valve Type | Axial Flow / Non-Slam Check Valve |
|---|---|
| Reference Body Material | ASTM A216 WCB |
| Size Range | 2 in – 36 in |
| Pressure Classes | ASME Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Design Standards | BS 1868 / ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| Inspection & Testing | API 598 |
| End Connection | RF / RTJ / Butt Weld options |
Typical Applications
- Compressor discharge
- Gas transmission
- Oil pipelines
- High-pressure process systems
- Services where reverse-flow velocity should be minimized
Selection Notes
Non-slam performance depends on system dynamics, spring force, flow velocity, fluid compressibility and valve sizing. The valve should be evaluated as part of the complete piping system rather than selected solely by line size.
How to Specify This Valve
Please provide size, pressure class, fluid properties, normal/minimum flow, design pressure, temperature, end connection and allowable pressure drop.
