Electric Flange Hard Seal Butterfly Valve

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Electric Flange Hard Seal Butterfly Valve

Product Model: D943H / Y
Nominal Diameter: DN50 ~ 2000mm
Nominal Pressure: PN0.6 ~ 2.5MPa
Applicable Temperature: Carbon Steel: -29 ℃ ~ 425 ℃ Stainless Steel: -40 ℃ ~ 650 ℃
Applicable Medium: Water, Air, Natural Gas , Oil and weak corrosive fluid
main material: WCB, alloy steel, stainless steel, QT450-10
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Electric Hard Seal Butterfly Valve Features 
 1, The valve with three eccentric sealing structure, seat and butterfly plate almost no wear, with the more tight off the tight seal function. 
 2, The sealing ring made of stainless steel, with a metal hard seal and elastic seal of the double advantages, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on. 
 3, Butterfly plate sealing surface using cobalt-based carbide, sealing surface wear, long service life. 
 4, Large-size butterfly plate with a fixed structure, high strength, over flow area, flow resistance is small. 
 5, The valve has a two-way sealing function, the installation is not subject to the flow of media restrictions, nor the impact of space, can be installed in any direction. 
 6, The drive can be multi-station (rotating 90 ° or 180 °) to install, easy to use.
 

Main Technical Parameters of Electric Hard Seal Butterfly Valve

Nominal Diameter DN (mm)50 ~ 2000
Nominal Pressure PN (Mpa)0.61.01.62.5
Seal Test (Mpa)0.661.11.762.75
Strength Test (Mpa)0.91.52.43.75
Proper TemperatureCarbon Steel: -29 ℃ ~ 425 ℃ Stainless Steel: -40 ℃ ~ 650 ℃
Applicable Media
Water, Air, Natural Gas, Oil and Weakly Corrosive Fluids
Leakage RateMeet the GB / T13927-92 Standard
Drive ModeWorm Gear, Electric, Pneumatic, Hydraulic


 Electric Hard Seal Butterfly Valve Main Parts Material

Part NameMaterial
BodyWCB, Alloy Steel, Stainless Steel, QT450-10
Butterfly BoardWCB, Alloy Steel, Stainless Steel, QT450-10
Valve Shaft2Cr13 Stainless Steel, Alloy Steel
Sealing RingStainless Steel Ring
FillerFlexible Graphite


 Electric Hard Seal Butterfly Valve Adopts Standard

Manufacturing StandardsJB / T 8527-97
Flange StandardGB9113-2000
Structural Length StandardGB12221-89
Inspection StandardsGB / T 13927-92


 Electric Hard Seal Butterfly Valve Main Outline Connection Size
                   

Nominal Pass (DN)Main DimensionsFlange Size and Bolt Size
1.0MPa1.6MPa2.5MPa
LH1HDD1n-ФdDD1n-ФdDD1n-Фd
501085301121651254-181651254-181651254-18
651125301151851454-181851454-181851458-18
801145651202001604-182001608-182001608-18
1001276001382201808-182201808-182351908-22
1251406401642502108-182502108-182702208-26
1501407051752852408-222852408-223002508-26
2001527752003402958-2234029512-2236031012-26
25016594524339535012-2240535512-2642537012-30
300178107025044540012-2246041012-2648543016-30
350190114028050546016-2252047012-2655549016-33
400216121030556551516-2658052516-2662055016-36
450222133535061556520-2664058516-3067060020-36
500229141538067062020-2671565020-3073066020-36
600267160544578072520-3084077020-3384577020-39
700292184448089584024-3091084024-3696087524-42
8003182040530101595024-33102595024-39108599024-48
90033022555801115105028-331125105028-391185109028-48
100041023806501230116028-361255117028-421320121028-56
120047026407601455138032-391485139032-481530142032-56
140053028868501675159036-421685159036-481755164036-62
1600600315610301915182040-481930182040-561975186040-62
1800670342112302115202044-482130202044-562195207044-70
2000760368513502325223048-482345223048-622425230048-70