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4'' GG20 PN16 BS21 cast iron foot valve
Specifications
1.Production Size:1” -6”,DN25-DN150mm
2.Pressure range:PN10,PN16
3.Design Standard:BS21
4.Screw Standard:BS21
5.Testing Standard:ISO 5208
Main material of parts:
1.Body:GG20
2.Filter:EN-GJL-250
3.Disc:EN-GJL-250/Carbon Steel
4.Seat:NBR,EPDM
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