Diaphragm Valves
Our diaphragm valves are ideal for applications requiring clean, sterile, or corrosion-resistant performance. The diaphragm isolates the fluid from the valve's mechanical parts, preventing contamination and ensuring purity.
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Product Specifications
| Design Standard |
BS 5156 |
| Type |
Weir, Straight-through |
| Material |
Cast Iron, Ductile Iron, Stainless Steel, Lined |
| Pressure Rating |
PN10, PN16 |
| Size Range |
1/2" to 12" |
Materials of Construction
| Part |
Carbon Steel |
Alloy Steel |
Stainless Steel |
| Body | Cast Iron / A216 WCB | — | A351 CF8/CF8M |
| Bonnet/Cover | Cast Iron / A216 WCB | — | A351 CF8/CF8M |
| Diaphragm | EPDM / PTFE-lined / Neoprene / Viton — as per service |
| Seat | Integral with diaphragm or body liner |
| Stem | A276 TP410 | A276 TP410 | A276 TP304/316 |
| Packing | Not applicable (diaphragm sealed) |
| Studs | A193 B7 | A193 B16 | A193 B8 |
| Nuts | A194 2H | A194 7 | A194 8 |
| Gasket | Compressed fiber / PTFE — as applicable |