PRODUCT
PTFE /PFA Seat 20alloy Disc butterfly valve wafer type gear operated
Specifications:
·
Size: DN50-DN1000
·
Pressure: PN16/150LB
·
Standard: Flange: DIN3202, DIN2501 PN10/PN16
·
Face to face: BS5155,Top Flange: ISO5211
Specifications:
|
Nominal pressue (MPa) |
1.0 |
1.6 |
|
|
Nominal diameter(mm) |
50-1000 |
50-1000 |
|
|
Test pressure |
Shell |
1.5 |
2.4 |
|
(MPa) |
Seal |
1.1 |
1.76 |
|
Applicable temperature |
150 |
||
|
Applicable medium |
water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, |
||
|
Operating mode |
manual, worm gear, pneumatic, electric, etc. |
||
Standards:
|
Design & Manufacture |
Flange Connection |
Face to Face Dimension |
Test & Inspection |
|
MSS SP-67 |
DIN PN10/16/25; ANSI B 16.1 |
API609 |
API 598 |
Material:
Body : Ductile iron(ASTM A395 Gr.60-40-18)/CF8/CF8M/WCB
·
Disc : Ductile iron(ASTM A395 Gr.60-40-18)/CF8/CF8M/20alloy /BRONZE
·
Stem : SS420/410/C95800/C95400/F6A
·
Seat: PTFE/PFA
Products Advantages :
PTFE butterfly valve valve is a soft sealing seat material commonly used in valves. It is commonly known as the "King of Plastics" and its called PTFE butterfly valve "Teflon". It is a polymer compound formed by polymerizing tetrafluoroethylene. It has excellent chemical stability and corrosion resistance. PTFE butterfly valve one of the best corrosion-resistant materials in the world today. In addition to molten metal sodium and liquid fluorine, it can withstand other All chemicals will not change when boiled in aqua regia. are PTFE butterfly valve widely used in various applications that require resistance to acids, alkalis and organic solvents, sealing properties, high lubrication and non-stickiness, electrical insulation and good anti-aging endurance, and excellent temperature resistance (can Long-term operation at temperatures from +250°C to -180°C.
20 alloy Disc 20 alloy material butterfly valve wafer type gear operatedvalves have excellent corrosion resistance, good resistance to oxidative and moderate reductive corrosion, excellent resistance to stress corrosion cracking and good local corrosion resistance, and are satisfactory in many chemical process media. Corrosion resistance properties. The applicable media for the No. 20 alloy valve include highly corrosive inorganic acid solutions, various media containing chlorides, formic acid and acetic acid, acid anhydrides, seawater and salt water, etc.
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