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 300 (NPS 12)
Max. Flow Velocity 3 m/s (9.8 fps)
Weight 10 kg (22 lb)
# Bolt holes (#B) 2
Bolt Circle Diameter (BCD) 438 mm (17.2 in)
Dimension 290 mm (11.4 in)
Valve body length (L) 600 mm (23.6 in)
Outer Ø (OD) 290 mm (11.4 in)
OD incl. gasket (ODG) 314 mm (12.4 in)
Ø Bolt Holes (ØB) 10.5 mm (0.4 in)
Max. Flow Volume 198 l/s (3138.4 GPM)
Max. ID Host Pipe 308 mm (12.1 in)
Min. ID Host Pipe 292 mm (11.5 in)
Fasteners mtrl. 316L stainless steel
Gasket EPDM