Double eccentric butterfly valve
Technical parameters
Fluid medium：
Water, oil, gas and various corrosive media
Temperature Range：
-10℃～120℃
Pressure Ratings：
PN0.6～2.5MPa
Size Range：
DN100～DN4000
Connection Type：
Flanged
Connection standard：
GB·ANSI·DIN·API·ISO·BS
Body Materials：
Cast iron；Ductile iron；Anti-corrosion valve body components, blue epoxy resin coating
Valve seat material：
316 stainless steel
Valve plate material：
Stainless steel；Ductile iron
Note：
All parts can be made of different materials according to actual working conditions.
Technical standard
Technical Standard
1.Test conforms to GB/T13927-2008 "industrial valve pressure test" standard.2.Side flange connection conforms to GB/T17241.6-2008 "integral cast iron flange" standard. At the same time comply with BS4504, ISO7005, DIN2501 in PN1.0MPa, PN1.6MPa flange connection standard.
3.13 series in line with the GB/T12221-2005 "metal valve structure length" flange connection butterfly valve 13 series size requirements.
4.14 series in line with the GB/T12221-2005 "metal valve structure length" flange connection butterfly valve 14 series size requirements.
Product Features
1.Double eccentric structure design, to avoid the wear of the sealing surface, maintaining the integrity of the seal and high service life.2.Wide angle seat design to avoid pressing and damaging the valve seat and valve tight contact. Provide longer service life.
3.Two - stage high - strength stem structure to ensure easy maintenance, double eccentric structure makes online maintenance valve seat and valve disc becomes easy and fast.
4.Streamlined spherical disc with high flow coefficient.
5.Flexible retaining ring provides a complementary seating pressure on the disc, not only has the advantages of simple structure and light weight, the driving torque is small, simple, rapid, good flow regulating function and close sealing characteristics.
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