The diaphragm valve is a fail-safe-to-open (FO) model with PVC-U backing flanges, designed for use with metric and British Standard piping systems. It features a single housing nut instead of four screws, a rotating air connection at 90° intervals, and flat sealing faces conforming to EN 558 for overall length and ISO 7005 PN 10, EN 1092 PN 10, DIN 2501 PN 10, and BS 4504 PN 10 for connection dimensions. The part number 161647035 corresponds to the 40 mm (1¼ inch) bore size with a PTFE diaphragm and EPDM O-ring, a kv-value of 759 l/min at Δp=1 bar, an overall length of 180 mm, and a weight of 1.801 kg. It is mounted with M8 threading and has a lift height of 15 mm.
FO (Fail safe to open) With backing flanges PVC-U metric/BS
| Georg Fischer Piping Systems Ltd | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | 161647035 |
| Product Name | Valves - Plastic-Valves - diaphragm-Valves - 2-way-diaphragm-Valve |
| Valve Type | Diaphragm |
| Primary Material | PVC-U |
| Valve Size | 4.72 inch (120.00 mm) |
