BILWE Manual Wafer Butterfly The product consists of a rubber seal butterfly valves and carbon steel or stainless steel plate, stem composition. For temperature ≤ 80 ~ 120 ℃,
BILWE Manual Wafer Butterfly The product consists of a rubber seal butterfly valves and carbon steel or stainless steel plate , stem composition. For temperature ≤ 80 ~ 120 ℃ , such as food , pharmaceutical, chemical, petroleum , power, textile, paper , etc. to the drainage, gas pipeline flows and the role of the media as a closure to adjust . The main valve is characterized by:
1 , novel design, reasonable , unique structure , light weight, open and close quickly .
2 , operating torque is small, easy to operate, saving smart .
3 , can be installed in any location , and easy maintenance.
4 , the seal can be replaced, reliable sealing performance bi-directional sealing reach zero leakage.
5 , sealing materials aging, weak corrosion , long service life .
Design Standard : GB/T2238-1989
Flange dimensions : GB/T9113.1-2000; GB/T9115.1-2000; JB78
Structure length : GB/T12221-1989
Pressure test : GB/T13927-1992; JB/T9092-1999
The main technical parameters butterfly
DN
DN (mm)
50 ~ 800
Nominal
PN (MPa)
0.6
1.0
1.6
Test pressure
Strength Test
0.9
1.5
2.4
Seal test
0.66
1.1
1.76
Gas seal test
0.6
0.6
0.6
For media
Air, water , sewage , steam , gas , oil and so on.
Drive form
Manual , worm gear , gas transmission, electric drive .
Part name
Material
Body
Ductile iron, cast steel , alloy steel, stainless steel
Disc
Steel, stainless steel and special materials
Seal
All kinds of rubber , PTFE
Stem
2Cr13, Stainless Steel
Packing
O -ring, flexible graphite O
