WaStop double collar Technical specification Nominal diameter DN 100 (NPS 4) Max. Flow Velocity 2 m/s (6.6 fps) Weight 0.6 kg (1.3 lb) # Bolt holes (#B) 2 Bolt Circle Diameter (BCD) 212 mm (8.3 in) Dimension 96 mm (3.8 in) Valve body length (L) 140 mm (5.5 in) Outer Ø (OD) 96 mm (3.8 in) OD incl. gasket (ODG) 108 mm (4.3 in) Ø Bolt Holes (ØB) 8.5 mm (0.3 in) Max. Flow Volume 16 l/s (253.6 GPM) Max. ID Host Pipe 106 mm (4.2 in) Min. ID Host Pipe 96 mm (3.8 in) Watertightness EN 13564 Fasteners mtrl. 316L stainless steel Gasket EPDM Product sheet (PDF) Technical specification (PDF) Dimensional drawing (PDF)