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D643H Pneumatic flange butterfly valve


  • Port size:2"~80" (DN50~DN2000)
  • Pressure:PN10-PN100 CL150-CL600
  • Medium:Water,steam,oil,gas,etc.
  • Temperature :-46~450℃
  • Body material:WCB,CF8,CF8M,CF3,CF3M etc.
  • Description:China D643H Pneumatic flange butterfly valve manufacturer,factory and supplier with different pressure and material.
D643H Pneumatic flange butterfly valve introduction
D643H Pneumatic flange butterfly valve is used in petroleum, chemical industry, electric power, metallurgy, food, light textile, papermaking and other industries, D643H Pneumatic flange butterfly valve can be installed in the temperature ≤425℃, medium for gas, air, steam, water, sea water, oil and other industrial pipe network for regulating flow and cutting off medium.The driving forms of D643H Pneumatic flange butterfly valve include manual, worm drive, pneumatic, hydraulic, electric, electro-hydraulic linkage and other actuators, which can realize remote control and automatic operation.Metal hard seal butterfly valve series products.D643H Pneumatic flange butterfly valve structure adopts the principle of tripple eccentric structure, the valve seat adopts the hard and soft sealing compatible multi-level structure, and the machining is fine.This product is composed of valve body, butterfly plate, multi-level seat, stem, transmission mechanism and other main components.Therefore, D643H Pneumatic flange butterfly valve is applied to pipelines of corrosive media such as metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage.

D643H Pneumatic flange butterfly valve Product Features
D643H Pneumatic flange butterfly valve is designed on the principle of three eccentricity, the space movement track of the sealing surface reaches the ideal, there is no friction between the sealing surface, there is no interference, and the sealing material is chosen properly, so that the sealing, corrosion resistance, high temperature resistance and wear resistance of the butterfly valve are guaranteed.Its main features are as follows:
1. Small opening torque, flexible, convenient and labor-saving.
2. Three-dimensional core structure makes the butterfly plate more and more tight, and its sealing performance is reliable, so that there is no leakage.
3, high pressure resistance, corrosion resistance, wear resistance, long use, etc.

D643H Pneumatic flange butterfly valve specification
Body: Stainless Steel,CF8,CF8M,CF3M, Carbon Steel
Disc: Stainless Steel CF3M,CF3,CF8M, Double Stainless Steel,2507,1.4529
Stem: Stainless Steel
Size: 5″ – 40″ (25mm – 1000mm)
Flange accommodation: EN 1092 PN10/PN16
ASME Class 150LB,300LB,600LB
AS 4087 PN 10/ PN16/PN25/PN40
JIS /10K/20K

D643H Pneumatic flange butterfly valve technical parameter
Optional functions of electric actuator double acting, single acting
Optional models of electric actuator AT series, AW series
Voltage AC110V, AC220V, AC24V,DC24V
Air source pressure 2bar-8bar
Nominal diameter DN50mm ~ DN1200mm
Nominal pressure PN1.0MPa~PN2.5MPa
Applicable temperature -30~ +425℃
Connection mode sandwich type
Body material carbon steel, stainless steel
Valve plate material carbon steel, stainless steel, alloy steel, etc
Seat lining hard alloy, carbon pigeon, silver alloy, graphite compound
Suitable medium water liquid,steam, oil, weak corrosive medium, etc.
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