V51DD / F51DD WAFER DOUBLE DOOR CHECK VALVE

Spring loaded double door.
Rubber seat for non-slam effect.
Durable fusion bonded epoxy coated.
Comply with DIN 3202-F1 / API 594.
Wafer connection to BS 4504 PN16 / EN 1092-2 PN16 / BS 4504 PN25 / EN 1092-2 PN25 / ANSI Class 150 (Specify on order).
Applicable for Building Services, Air-Conditioning, Fire-Protection, Cold Water Plumbing, Hot Water System, Sewerage & Water Treatment, General Industries.

Working Pressure	16bar / 25bar
Shell Testing Pressure (x1.5)	24bar / 37bar
Seat Testing Pressure (x1.1)	17.6bar / 27.5bar
Working Temperature	-20°C…110°C (EPDM seat ring) -10°C…80°C (NBR seat ring)
Suitable Media	Water, Oil, Gas

Part	Material	Specification
Body	Ductile Iron Stainless Steel 304 Stainless Steel 316	EN-JS 1050 BS970 304C15 BS970 316C16
Disc	Ductile Iron Aluminium Bronze Stainless Steel 304 Stainless Steel 316	EN-JS 1050 EN 1982 CC491K BS970 304C15 BS970 316C16
Stem	Stainless Steel 316	BS970 316S16
Seat Ring	EPDM / NBR	Commercial
Spring	Stainless Steel 304 Stainless Steel 316	BS970 304S15 BS970 316S16

Note: PN25 only available for size DN40 … DN600.