Duplex Butterfly Valves
Duplex steel valves have good corrosion resistance and high strength performance because of their material character. So-called "duplex stainless steel" is the ferrite and the austenite probably respectively occupies in its melting organization one half. Even a small amount not less than 30% as well. Because the duplex stainless steel has the ferrite and the austenite elements, therefore it has merits that high intensity and bears the chloride stress corrosion performance which the ferritic stainless steel has, and fine tough and welding performance which the austenite stainless steel has.
Duplex steel valve's anti-chloride pitch corrosion, the slit corrosion and the stress corrosion performance are extremely superior, and the mechanical strength is high, bears weary and the attrition corrosion property is good, these merits which stainless steel all are unable to compare.
Duplex Butterfly ValvesApplication
Duplex butterfly valves mainly apply in the neutral chloride medium. The valves widely apply in the oil refining industry, the petrochemical industry and the chemical industry, the petroleum and the gas industry, the paper pulp and the paper industry, the chemical fertilizer industry (urea industry, phosphate fertilizer industry), professions and so on food and drugs manufacture industry. It substitutes the austenite stainless steel valve, the application is day by day widespread.
Duplex Butterfly Valves Structure (Duplex2205 double offset butterfly valve for example）
|
PARTS |
MATERIAL |
|
|
1 |
Gasket |
PTFE |
|
2 |
Split ring |
A182 F51 |
|
3 |
Stem |
A182 F51 |
|
4 |
Screw |
A182 F51 |
|
5 |
Seat |
PTFE/RPTFE |
|
6 |
Disc |
A890 4A |
|
7 |
Pin |
A182 F51 |
|
8 |
Seat retainer |
A890 4A |
|
9 |
Body |
A890 4A |
|
10 |
Bearing |
PEEK |
|
11 |
Packing |
PTFE |
|
12 |
Gland bushing |
A182 F51 |
|
13 |
Double-end bolt |
A193 B8M |
|
14 |
Hexagon nut |
A194 8M |
|
15 |
Bracket |
A351 CF8M |
|
16 |
Key |
UNS G10450 |
|
17 |
Gearbox device |
CF8M / WCB |
Related Butterfly Valves
Leave a Message
Weidouli ValvesCo., Ltd.,is a professional valve manufacturing industry, we provide Discharge Valves, rotary plug control valve, discharge valves, rotary plug valveand etc. Want to knowmore? Please contact us.
Send product request
Other supplier products
 |
Tantalum Ball Valves | Weidouli Tantalum Ball Valvebear excellent chemical properties and high corrosion resistance, being widely used in Coal chemical industry, Petroche... |
 |
Inconel Gate Valves | Inconel has many different grades, such asInconel600,Inconel625 and Incoloy 800H. Different grades have different corrosion resistance, being able ... |
 |
Duplex Ball Valves | Duplex ball valveshave the advantages of both ferritic stainless steel and austenitic stainless steel: austenitic stainless steel reduces the britt... |
 |
Duplex Globe Valves | The microstructure of the duplex stainless steel globe valve consists of a mixture of an austenitic phase and a ferrite phase. Therefore, the duple... |
 |
Hastelloy Globe Valves | Hastelloy Globe Valves There are many types of hastelloy valvessuch as Hastelloy B2, Hastelloy B3, Hastelloy C22, and hastelloy c 276 valves. Hast... |
Same products
 |
3 Axis Glue Dispensing System Robot clutch dispensing Machine for Glue Epoxy Adhesive potting | Seller: 824681 | AB glue meter mix dispensing machine/automatic glue potting machine for LED driver automatic ep... |
 |
Automatic Glue Mixing and Potting Machine for LED driver | Seller: 824681 | AB glue meter mix dispensing machine/automatic glue potting machine for LED driver automatic ep... |
 |
AB glue meter mix dispensing machine/automatic glue potting machine for LED driver automatic epoxy resin potting machine 2 Part Silicone plyurethane epoxy dosing and dispenser potting machine | Seller: 824681 | AB glue meter mix dispensing machine/automatic glue potting machine for LED driver automatic ep... |
 |
Double Liquid AB Adhesive Dispenser Equipment | Seller: 824681 | Double Liquid ABAdhesiveDispenserEquipment AB glue meter mix dispensing machine/automatic glue ... |
 |
AB glue meter mix dispensing machine/automatic glue potting machine for LED driver | Seller: 824681 | AB glue meter mix dispensing machine/automatic glue potting machine for LED driver automatic ep... |
