Butt Welded Metal Seal Butterfly Valve

1) Standards
   a) Face-to-face dimension: GB12221-1989
   b) Weld standards: GB12224, ANSIB16.25, DIN2559
   c) Test pressure: GB/T13927-1992, JB/T8527-1997

2) Specifications:
   a) DN (mm): 1000 - 2000/600 - 2000/80 - 1600/80 - 1400/80 - 600
   b) PN (Mpa): 0.6/1.0/1.6/2.5/4.0
   c) PS (Mpa):
       i) Shell test: 0.9/1.5/2.4/3.75/6.0
       ii) Seal test: 0.66/1.1/1.76/2.75/4.4

3) Suitable medium: water, steam, oil, coal gas, natural gas, sewage, corrosive media
4) Suitable temperature: -40ºC - 400ºC

5) Main parts materials
   a) Body: WCB, WC6, WC9, CF8.CF8M
   b) Disc: WCB, WC6, WC9, CF8.CF8M
   c) Shaft: 2Cr13, 316.304.17-4PH
6)Size:2'' - 48''