Stainless Steel Wafer Butterfly Valve

  • Detail
  • Parameters
Model
D71X Series
Caliber
DN50~DN200(mm)
Conveyed medium
water, oil, steam, corrosive liquids.
Pressure range
1.0~1.6MPa
Flow - through material
Stainless steel
Operating temperature
Nitrile rubber: -40℃~90℃ Fluororubber: -20℃~200℃
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Features
1.This valve features a double-eccentric structure, ensuring a tighter seal as it closes, with reliable sealing performance.
2.The sealing pair materials are stainless steel and oil-resistant nitrile rubber, offering a long service life.
3.The rubber sealing ring can be located on either the valve body or the disc, making it adaptable to different media characteristics for user selection.
4.The disc uses a frame structure, providing high strength, large flow area, and low flow resistance.
5.The overall baking finish effectively prevents corrosion. By replacing the sealing material of the valve seat, it can be used with different media.
6.This valve has bidirectional sealing capabilities, allowing installation without being restricted by media flow direction or spatial position. It can be installed in any orientation.
7.The valve has a unique structure, with flexible, labor-saving, and convenient operation.
Parameters
Nominal Diameter DN(mm)50~200050~1600
Nominal   Pressure PN(MPa)0.611.6
Sealing   Test(MPa)0.661.11.76
Strength   Test(MPa)0.91.52.4
Service   TemperatureNBR:   -40℃~90℃
VITON: -20℃~200℃
Applicable   MediaWater,   air, natural gas, oil, and weak corrosive fluids
Leakage   RateComplies   with GB/T13927-92 standard
Actuation   ModesWorm   gear drive, electric, pneumatic, hydraulic
Components
Part NameMaterial
Valve BodyWCB, QT450-10, HT200, HT250
DiscWCB, QT450-10, HT200, HT250
Shaft2Cr13
Sealing RingOil-Resistant NBR
PackingFlexible Graphite
Dimensions
DNLHHOAB0.6MPa1.0MPa1.6MPa
DOn-dDOn-dDOn-d
5043632352701101104-141254-181254-18
6546702502701101304-141454-181454-18
8046832752701101504-181608-181608-18
100521053162701101704-181808-181808-18
125561153403101102008-182108-182108-18
150561373763101102258-182408-222408-22
200601644303531502808-182958-222958-22
2506820649935315033512-1835012-2235512-26
3007823057038015039512-2240012-2241012-26