GOST standard double offset butterfly valves

1 The valve adopts doubleeccentricsealing structure valve seat and disc almost have no wear has sealing functionof getting tighter and tighter when closed

2 Sealing ring adopts stainless steel which has the advantages ofmetal hard seal and elastic seal It has excellent sealing performance under lowtemperature and high temperature corrosion resistance long service life

3 Body sealing surface use stainless steel or cemented carbide whichis wear resistance long service life

4 Large size butterfly board adopts truss structure of highstrength large flow area and low flow resistance

5 The valve has bidirection sealing function It can be installedin any direction without the limitation of medium flowand space position

6 The drive device can be installed in multiple positions rotationof 90 or 180  for easy use by the user

Flanged metal or rubberbutterfly valves are widely used in drinking water thermal pipelines boilerauxiliary systems petrochemical and metallurgical industries to cut off andregulate various noncorrosive and corrosive medium

The manual butterfly valve isused in dustbearing cold wind or hot air pipelines of chemical engineeringbuilding materials power station glass and other industries as control device to regulate flow rate or cut off gasmediumIt is installed in pipelines with medium temperature  300 and nominalpressure of 014 Mpa to connect open orclose or adjust medium The valve should be generally installed horizontally inthe pipelines