CF8 Soft NBR Seat Wafer Swing Check Valve 1.5-16 Inch ANSI 150LB Zero Leakage
Zero leakage check valve with NBR soft seat design for superior sealing performance in industrial applications.
Applicable Standards:
- Design and Manufacturing: ASTM B16.34
- Flange Connection: ASTM B16.5
- Test and Inspection: API598
Size Range: 1 1/2" to 16"
Pressure Rating: ANSI 150LB, 300LB | JIS 10K, 20K
Temperature Range: -20°C to 180°C
| Component | Carbon Steel | CF8 (SS304) | CF8M (SS316) |
|---|---|---|---|
| Body Material | Carbon Steel | SS304 | SS316 |
| Valve Disc | Carbon Steel | SS304 | SS316 |
| Bolt, Washer | SS304 | SS304 | SS316 |
| Eye Bolt | Plated Carbon Steel | Plated Carbon Steel | Plated Carbon Steel |
| O-ring | NBR, EPDM | ||
| Working Temperature | -20℃ to 120℃ | -29℃ to 180℃ | -29℃ to 180℃ |
| Medium | Water, Steam, Oil, Gas | ||
| Standard | ANSI, DIN, JIS, JB | ||
| DN | A (PN16) | A (PN25) | L (PN16) | L (PN25) |
|---|---|---|---|---|
| 100 | 162 | 168 | 16 | 16 |
| 125 | 192 | 194 | 16 | 16 |
| 150 | 218 | 225 | 19 | 19 |
| 200 | 273 | 285 | 28 | 28 |
Check valves are automatic shut-off valves designed to prevent backflow or drainage in pipe systems. These valves are commonly installed on the discharge side of pumps to protect equipment from damage caused by reverse flow when pumps stop operating.
The swing check valve features a flat disc that pivots about a hinge pin, offering low cost operation and minimal head loss when fully open. Ideal for handling liquids with solids such as wastewater applications.
- Economical Design: Low weight and short laying length reduce initial costs, space requirements, and installation time
- Minimal Head Loss: Short, straight flow path minimizes pressure drop
- Quick Closure: Spring-assisted disc closes near zero flow velocity to reduce water hammer
- Zero Leakage: Resilient NBR soft seats with precision machined sealing surfaces ensure bubble-tight seal exceeding API 598 requirements
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