Ductile Iron Butterfly Valves
Double Flanged Butterfly Valves With Disc Double Eccentric With Resilient Seat Conform to BS EN593 (BS5155)

Size:DN50-DN2000

Specification:

Technical and requirement

Design, manufacture are according to standard of BSEN593-98〔Butterfly Valves For Waterworks Purpose〕.
The flange of the butterfly valve is according to PN1.6 Mpa flange of BSEN1092-2 for internal ductile iron flanges.
Inspection is according to standard PrEN12266-3.(No Visible Leakage).
The valves for PN1.0 MPa and PN2.5 MPa are also can be designed and manufactured.

Material Specification:

No.	Name of part	Material	BS Designation
	Coating (350 microns)	Epoxy Resin or Epoxy fusion bonded
18	Bolt	Carbon Steel/S.S.	BS970	316S13 or 304S15
17	Connecting Plate	SG(Ductile) Iron	BSEN1563	EN-JS1050
16	Handwheel	SG(Ductile) Iron	BSEN1563	EN-JS1050
15	Gearing Box	SG(Ductile) Iron	BSEN1563	EN-JS1050
14	Shaft (1)	Stainless Steel	BS970	Gr431S29
13	Packing Box	Copper-tin-lead alloys	BSEN1982	CuSn5Zn5Pb5
12	O-Ring	EPDM	BSEN681	IRHD66-75
11	Body Sealing Ring	Stainless Steel	BS970	316S13 or 304S15
10	Rubber Sealing	EPDM	BSEN681	IRHD66-75
9	Retaining Ring	Stainless Steel	BS970	316S13 or 304S15
8	Obturator	SG(Ductile) Iron	BSEN1563	EN-JS1050
7	Obturator Pin	Stainless Steel	BS970	Gr431S29
6	Shaft (1)	Stainless Steel	BS970	Gr431S29
5	Body	SG(Ductile) Iron	BSEN1563	EN-JS1050
4	Shaft bushes	Du Bushes	Self Lubricating Bushes
3	O Ring	EPDM	BSEN681	IRHD66-75
2	.Cover	SG (Ductile)Iron	BSEN1563	EN-JS1050
1	Bolt	Carbon Steel/S.S.	BS4190 (Hot dipped galvd)

Double Electric Flanged 1.6 MPa Ductile Iron Butterfly valve With Resilient Seat

Butterfly Valve