Tianjin Tanggu Water-Seal Valve Co., Ltd.

We are a professional manufacturer of various butterfly valves including 609 butterfly valve( BV for short),bonded seat BV, Europe BV, Teflon lined BV, grooved end BV, heavy duty BV, long neck BV,Mark BV, Australia BV, screw end BV,U-section BV, etc.

The descriptions, part materials and standrds of BV are in the following,

size:DN40-DN1200
end flange:ANSI B 16.1,EN 1092,AS 2129
face to face:ANSI B 16.10
top flange:ISO 5211
Normal pressure:DN40-DN600 PN1.0/1.6MPa(150/200PSI) DN700-DN1200 PN1.0MPa(150PSI)
body:CI/DI/WCB/ALB/CF8/CF8M
disc:DI/ALB/Rubber lined Disc/1.2501/CF8M/1.4529/CF8/Hastelloy Alloy/Monel
stem:416/304/316/431/17-4PH
seat:NR/Hypalon/EPDM/Neoprene/NBR/Wear-Resistant EPDM/Viton/Silicon/Heat-Resistant EPDM/White NBR/White EPDM/EPDM(NSF)/PTFE
Taper Pin:416/316/431/17-4PH
Bushing:Lubrized Bronze/PTFE
O-Ring:NBR/EPDM
Key:45 1045
Bearing:Bearing steel
End Cover:CI/WCB/CF8/CF8M
Bolt:Q235 Gr.33 35 1035 / 304
HEX Screw:Q235 Gr.33