Double Eccentric Flanged Butterfly Valve

D343H/W Double/Three Eccentric Metal Seat Butterfly Valve

Purpose

This kind of butterfly valve is suitable for use in metallurgy, chemical power, petroleum, food, medicine, ship, building, paper, Industrial environmental protection, water supply and drainage ,on high level pipeline architecture can be in a various of corrosive ,non corrosive gases ,liquids ,fluids and solid powder loaded pipelines and containers for the headstock or adjust the medium flow purpose .

Features

1.Disc ring for soft and hard metal sheets stacked with metal hard sealing and sealing of the dual advantage of flexibility in terms of low temperature and high temperature circumstances ,has excellent sealing performance.

2.Using three dimensions eccentric structure ,disc with almost no friction ,with more clearance sealing function is tightening.

3.Valve body sealing surface use of welding stainless steel ,cobalt alloy ,sealing surface wear resistant long service life .

4.Unique structure operation flexibility ,labor saving, convenient and free from the pressure ring high and low impact ,reliable sealing performance.

Executive Standard:

Design and Manufacture: GB12238 /、ANSI B16.34/API609

Flange connection : GB/T 9113.1 /ASME B16.5

Face-to-face: GB/T12221 /API609

Performance Parameters

Nominal diameter:4"-80"/DN100-DN2000

Working pressure:10Bar/16Bar/25Bar,150LB/300LB

Top Flange:ISO5211

Tightness Inspection: ISO 5208,/EN12226-2,API598

Main part material

Body: Cast steel, Stainless steel

Disc: Cast steel, Stainless steel

Stem: Stainless Steel

Sealing ring: SS304