Why It’s Useful
- Backflow prevention
- One-way fluid control
- Water system regulation
- Durable plumbing components
WS690-S3-316
Regular price
£14,430.00
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The WaStop Inline check valve installs in stormwater systems and outlets, providing immediate protection against flooding and backflow. Its unique, simple, and effective design also prevents unwanted odour, especially at outlets in tidal environments. The standard variant is supplied with an EPDM gasket and mounting tabs.
Technical specification
| Nominal diameter | DN 700 (NPS 28) |
| Max. Flow Velocity | 4 m/s (13.1 fps) |
| Weight | 73 kg (160.9 lb) |
| # Bolt holes (#B) | 6 |
| Bolt Circle Diameter (BCD) | 825 mm (32.5 in) |
| Dimension | 687 mm (27 in) |
| Valve body length (L) | 1300 mm (51.2 in) |
| Outer Ø (OD) | 687 mm (27 in) |
| OD incl. gasket (ODG) | 715 mm (28.1 in) |
| Ø Bolt Holes (ØB) | 10.5 mm (0.4 in) |
| Max. Flow Volume | 1540 l/s (24409.5 GPM) |
| Max. ID Host Pipe | 710 mm (28 in) |
| Min. ID Host Pipe | 692 mm (27.2 in) |
| Fasteners mtrl. | 316L stainless steel |
| Gasket | EPDM |
