DS(3/6/9)73H
Sandwich type three eccentric double sealing butterfly valve
The sandwich two-way hard sealing disc valve is a new type of butterfly valve developed by our company combining with the market demand, using SW, CAD and other software to assist design, continuous innovation and improvement of processing technology
Two-way sealing butterfly valve is mainly used in petroleum, chemical industry, power station, metallurgy, papermaking, water heating, light industry and other fields, as a pipeline cutting and adjustment device.
Product parameters
The sandwich type two-way pressure butterfly valve of our company adopts the structure of three eccentric and movable seat, so that the butterfly plate opens and shuts without friction with the sealing pair, and effectively guarantees the sealing performance of reverse pressure. The valve has compact structure, light weight and convenient maintenance.
Standard specification | |
Standard of design | GB/T 12238 |
Length of structure | GB/T 12221 |
Flange connection dimension | HG/T 20592 |
Inspection and testing | GB/T 26480 |
Main parts materials | |
Body of valve | WCB、CF8、CF8M、Q235A |
Plate of butterfly | WCB、CF8、CF8M、Q235A |
Air seal ring | 304, 316 or 201+ wear-resistant cardboard |
Valve stem | 2Cr13、304、316 |
Packing material | Flexible graphite |