Electric Flanged DN50 - DN2000 1.6 MPa Ductile Iron Butterfly Valve for Water

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Electric Flanged DN50 - DN2000 1.6 MPa Ductile Iron Butterfly Valve for Water


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

Size:DN50-DN2000

Specification:

Nominal pressure (MPa) 1.6  
Testing Pressure Body shell 2.4  
Seal 1.76  
Working pressure (MPa) 1.6  
Suitable temperature (°C) ≤80
Suitable Medium Water

 

 

 

 

 

 

 

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)
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