SJZF-40 Swing Check Valve
SJZF-40 is a swing check valve. The disc opens for flow in the permitted direction and is pressed closed by outlet pressure during reverse flow to prevent backflow in the pipeline.
Product features
The valve comprises a body, disc and seat, with the disc rotating around a pin. It opens for forward flow and closes during reverse flow. The catalog describes reliable sealing and low flow resistance. It is intended for water or steam pipelines.
Operating data
| Item | Value |
|---|---|
| Series nominal sizes | 15–40 mm |
| Nominal pressure | 4.0 MPa |
| Operating temperature | ≤200°C |
| Media | Steam, water |
Catalog models and dimensions
| Model | Nominal size | L | D | D1 | D2 | DN |
|---|---|---|---|---|---|---|
| SJZF-40 | DN40 | 180 | 145 | 110 | 85 | 40 |
| XSZF-40 | DN25 | 160 | 115 | 85 | 65 | 25 |
| XSZF-40 | DN40 | 180 | 145 | 110 | 85 | 40 |
Applications
For water or steam pipelines at operating temperatures up to 200°C to prevent reverse flow.