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Pneumatic fluorine lined flange butterfly valve


Product model: D641F / F4 / F46

Nominal diameter: DN50 ~ 1200mm

Nominal pressure: PN0.6 ~ 1.6Mpa

Applicable temperature: - 20 ~ + 200 ℃

Applicable media: water, air, natural gas, oil and strong corrosive fluid

Valve body form: straight through cast butterfly valve

Valve plate type: vertical plate (medium type)

Connection type: flange connection

Sealing packing: polytetrafluoroethylene F4, polyperfluoroethylene propylene F46


PRODUCT OVERVIEW

The pneumatic fluorine lined flange butterfly valve is composed of Teflon sealed butterfly valve, pneumatic actuator and triple parts. The pneumatic fluorine lined butterfly valve is made of fully lined (F3, F4, F46) polymer materials on the flow channel, butterfly plate and valve stem, which has good anti-corrosion performance. It is applicable to pipelines with corrosive or cleanliness requirements, such as alkali, reducing agent, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, organic acid, strong acid, concentrated vinegar and other strong corrosive media. Driven by compressed air and receiving industrial signals, the butterfly valve can be adjusted and opened by cooperating with positioner or solenoid valve. It is used for regulating flow and intercepting medium on water supply and drainage and gas pipelines such as food, medicine, chemical industry, petroleum, electric power and papermaking.


MAIN FEATURES 

1. Novel and reasonable design, unique structure, light weight and rapid opening and closing.

2. Small operating torque, convenient operation, labor-saving and dexterous.

3. It can be installed at any position and easy to maintain.

4. The seals can be replaced with reliable sealing performance to achieve two-way sealing and zero leakage.

5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life.


MAIN TECHNICAL PARAMETERS

Nominal diameterDN(mm)50~1200
Nominal pressurePN(MPa)0.61.01.6
Sealing test(MPa)0.661.11.76
Strength test(MPa)0.91.52.4
Applicable temperatureFluororubber: - 20 ℃ ~ 200 ℃
Applicable mediaWater, air, natural gas, oil products and highly corrosive fluids
Leakage rateComply with GB / T13927-92
Driving modePneumatic
Configure actuatorGT, at, AW series single and double acting pneumatic actuators
Control modeSwitch two position control, 4 ~ 20mA analog signal control


EXECUTIVE STANDARD

Design criteriaGB/T2238-1989
Flange connection sizeGB/T9113.1-2000;GB/T9115.1-2000;JB78
Structure lengthGB/T12221-1989
Pressure testGB/T13927-2000;JB/T9092-1999


MATERIAL OF MAIN PARTS

Part nameMaterial Science
valve body(Nodular cast steel, cast steel, stainless steel) + F46
Disc(gray cast iron, nodular cast steel, cast steel, stainless steel and special materials) + F46
Valve stem2Cr13、stainless steel
fillerO-ring, flexible graphite


MAIN OVERALL CONNECTION DIMENSIONS

Nominal diameter(DN)Main dimensionsFlange size
LHH1A1.0MPa1.6MPa
DD1n-ФdDD1n-Фd
50108633151801651254-181651254-18
65112703301801851454-181851454-18
80114833902452001604-182001608-18
1001271054312402201808-182201808-18
1251401154552402502108-182502108-18
1501401376263502852408-222852408-22
2001521647203503402958-2234029512-22
25016520680055039535012-2240535512-26
30017823086060044540012-2246041012-26
35019024888360050546016-2252047012-26
40021628997260056551516-2658052516-26
450222320104375061556520-2664058516-30
500229342109875067062020-2671565020-30
600267413123675078072520-3084077020-33
700430478143175089584024-3091084024-36
8004705251488750101595024-33102595024-39
900510585161512501115105028-331125105028-39
1000550640176515001230116028-361255117028-42
1200630755197615001455138032-391485139032-48

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