Pneumatic Wafer Butterfly Valve

  • Detail
  • Parameters
Model
D671X Series
Caliber
DN50~DN1200(mm)
Conveyed medium
Water, oil, steam, corrosive liquids
Pressure range
0.6~1.6MPa
Flow - through material
Carbon steel, alloy steel, stainless steel, etc.
Operating temperature
Nitrile rubber: -40℃~90℃ Fluororubber: -20℃~200℃
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自由容器
The soft - sealed center - line wafer - type butterfly valve and the double - eccentric flanged butterfly valve feature a compact structure. They can be switched with a 90° rotation easily, offer reliable sealing, and have a long service life. They are widely used in water supply and drainage systems of water plants, power plants, steel mills, paper - making, chemical, and catering industries, etc., for flow regulation and cut - off.
自由容器-副本3
Features
1.The valve adopts a double-eccentric structure, with a sealing function that tightens as it closes, ensuring reliable sealing performance.
2.The sealing pair is made of stainless steel and NBR oil-resistant rubber, featuring a long service life.
3.The rubber sealing ring can be positioned on either the valve body or the butterfly disc, suitable for different media characteristics for users to choose from.
4.The butterfly disc adopts a frame structure, with high strength, a large flow area, and low flow resistance.
5.The overall baked enamel effectively prevents corrosion, and by only replacing the sealing seat material, the valve can be applied to different media.
6.The valve has a bidirectional sealing function, not restricted by the medium flow direction or spatial position during installation, and can be mounted in any direction.
7.The valve features a unique structure, flexible operation, labor-saving, and convenient use.
Parameters
Nominal Diameter(mm)50~200050~1600
Nominal Pressure(MPa)0.61.01.6
Sealing Test(MPa)0.661.11.76
Strength Test(MPa)0.91.52.4
Applicable TemperatureNBR:-40℃~90℃ Fluororubber:-20℃~200℃
Applicable MediaWater, air, natural gas, oil, and weak corrosive fluids
Leakage RateComplies with GB/T 13927-92 standard
Driving ModeWorm gear drive, electric, pneumatic, hydraulic
Material
Part NameMaterial
Valve BodyWCB、QT450-10、HT200、HT250
Butterfly DiscWCB、QT450-10、HT200、HT250
Valve Shaft2Cr13
Sealing RingNitrile Oil - Resistant Rubber
PackingFlexible Graphite
Dimensions
DNLHHOAB0.6MPa1.0MPa1.6MPa
DOn-dDOn-dDOn-d
504363315180651104-141254-181254-18
654670330180651304-141454-181454-18
804683390245721504-181608-181608-18
10052105431240721704-181808-181808-18
12556115455240722008-182108-182108-18
15056137626350932258-182408-222408-22
20060164720350932808-182958-222958-22
2506820680055035033512-1835012-2235512-26
3007823086060035039512-2240012-2241012-26
3507824888360035044512-2246016-2247016-26
40010228997260035049516-2251516-2652516-30
450114320104375035055016-2256520-2658520-30
500127343109875038060020-2262020-2665020-33
600154413123675038070520-2672520-3077020-36
700165478143175038081024-2684024-3084024-36
800190525148875038092024-3095024-3395024-39
90020362016151250380102024-30105028-33105038-39
100021672517651500580112028-30116028-36117028-42
120025478019761500580134032-33138032-39139032-48