WaStop double collar Technical specification Nominal diameter DN 900 (NPS 36) Max. Flow Velocity 4 m/s (13.1 fps) Weight 116.4 kg (256.6 lb) # Bolt holes (#B) 6 Bolt Circle Diameter (BCD) 1229 mm (48.4 in) Dimension 885 mm (34.8 in) Valve body length (L) 1300 mm (51.2 in) Outer Ø (OD) 885 mm (34.8 in) OD incl. gasket (ODG) 915 mm (36 in) Ø Bolt Holes (ØB) 14 mm (0.6 in) Max. Flow Volume 2546 l/s (40354.9 GPM) Max. ID Host Pipe 912 mm (35.9 in) Min. ID Host Pipe 890 mm (35 in) Fasteners mtrl. 316L stainless steel Gasket EPDM Product sheet (PDF) Technical specification (PDF) Dimensional drawing (PDF)