Diaphragm Valve Screwed
| TYPE | WEIR(A)TYPE |
| SIZE | 1⁄2”TO 2” |
| BODY MATERIALS | CI, CS, 304, 316, PP, PVC |
| DIAPHRAGM | NITRIL, NEOPRANE, EPDM, HYPALON, VITON, PTFE |
| END CONNECTION | SCREWED NPT, BSP |
| MFG STD | BS 5156 |
Description
The screwed end connections (BSP or NPT) facilitate quick installation and easy removal, reducing maintenance time and costs. Designed for low to medium pressure service, the valve is widely used in chemical processing, water treatment, pharmaceutical, and food & beverage industries due to its reliable performance and versatile application.
| Specification | Details |
| Valve Size | ½” (DN 15) to 4″ (DN 100) |
| Pressure Rating | · Typically rated for PN10 or PN16 pressure, depending on valve body material and application.
· Maximum pressure range: 10 to 16 bar (145 to 232 psi). |
| Body Material | · Stainless Steel (ASTM A351 CF8 / CF8M): For high corrosion resistance and durability in aggressive applications.
· Cast Iron: For standard applications where temperature and pressure conditions are moderate. · Plastic (PVC, PP): For chemical resistance in applications involving acids or alkalis. |
| Temperature Range | · EPDM Diaphragm: -10°C to +120°C (14°F to 248°F)
· PTFE Diaphragm: -20°C to +180°C (4°F to 356°F) · Viton Diaphragm: -20°C to +150°C (4°F to 302°F) · Plastic bodies (PVC/PP): Suitable for -10°C to +60°C (14°F to 140°F) |
| Diaphragm Materials | · EPDM: Suitable for water, dilute acids, and alkalis.
· PTFE: High resistance to chemicals, acids, and aggressive media. · Viton: Excellent resistance to chemicals and high temperatures. |
| End Connections | Threaded Ends: Available in BSP or NPT threading standards for easy installation. |
| Design Standards | · Conforms to BS 5156 and EN 13397 for diaphragm valves.
· Testing according to API 598 or ISO 5208 for valve leakage and hydrostatic testing. |
