Material for main parts
|
Parts name
|
Material
|
|
Body
|
Ductile cast iron,cast steel,Alloy steel, stainless steel
|
|
Disc
|
Grey cast iron,ductile cast steel,cast steel,stainless steel and hoc material
|
|
Seal ring
|
Manifold rubber,such as EPDM, PTFE,NBR,Viton,CR
|
|
Stem
|
steel,ss420,ss304,ss316
|
|
Packing
|
O-ring,flexible graphite
|
Butterfly valve seal material choice and apporpriate tempersture
|
Material variety
|
Neoprene
|
Styene rubber
|
EPDM
|
PTFE
|
Silicon rubber
|
Fluorine rubber
|
|
Resistance highest temperature
|
82°C
|
93°C
|
150°C
|
232°C
|
250°C
|
204°C
|
|
Resistance lowest temperature
|
-40°C
|
-40°C
|
-40°C
|
-268°C
|
-70°C
|
-23°C
|
|
Suitable working temperature
|
≤65°C
|
≤80°C
|
≤120°C
|
≤200°C
|
≤200°C
|
≤180°C
|
Note:
1.We are directly butterfly valve factory in Tianjin, only 2 hours away from Beijing by car.
2.We have more than 150 body moulds for you to choose!
3.Each valve is taken for two times test pressure before leave factory! Every butterfly valves has 24 months guarantee period.