Specification :

Detail:

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Ductile Iron Butterfly Valves |
Double Flanged Butterfly Valves With Disc Double Eccentric With Resilient Seat Conform to BS EN593 ( BS5155) |
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Size: DN100-DN2000 |
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Specification: | |
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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 |
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Technical and requirement |
# # Design, manufacture are according to standard of BSEN593-98Butterfly 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. |
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Material Specification: |
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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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