D971X clamping type electric soft seal butterfly valve main advantages, simple structure, small volume light weight, low cost, pneumatic disc valve installed in the air, through two clamping type electric soft seal butterfly valve five solenoid valve control operation, but also adjustable flow medium. Fluid resistance is small, large diameter pneumatic disc valve fully open the effective flow area is larger, easy opening and closing fast, disc pull rotation Angle of 90 to complete opening and closing, due to the rotation axis disc plate hand medium force nearly equal, and the torque in the opposite direction, thus opening and closing torque is small, low pressure can achieve good sealing, disc valve sealing material is nitrile butadiene rubber, fluorine rubber, rubber, four fluorine lining so sealed performance is good, which is suitable for soft hard cascading metal hard seal butterfly valves with metal sealing and elastic sealing advantages, under the condition of low temperature has good sealing performance.
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Part name
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Material Science
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valve body
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Spheroidal graphite cast steel, cast steel, alloy steel, stainless steel
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Disc
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Gray cast iron, ductile cast steel, cast steel, stainless steel and special materials
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Seal ring
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All kinds of rubber, PTFE
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The stem
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2Cr13、Stainless steel
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filler
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OType ring, flexible graphite O
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Nominal diameter
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DN(mm)
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50~2000
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Nominal pressure
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PN(MPa)
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0.6
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1.0
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1.6
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Test pressure
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强度试验
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0.9
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1.5
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2.4
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Seal test
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0.66
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1.1
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1.76
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Air tight test
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0.6
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0.6
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0.6
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Applicable medium
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Air, water, sewage, steam, gas, oil, etc..
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Driving form
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Manual, worm and worm drive, gas transmission, electric drive。
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Nominal diameter
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Structure length (standard value)
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Dimensions (reference values)
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Connection dimension (standard value)
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0.6MPa
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1.0MPa
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1.6MPa
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millimeter
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inch
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L
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H
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H0
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A
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B
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D0
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n-d
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D0
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n-d
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D0
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n-d
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50
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2
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43
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63
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438
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125
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125
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110
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4-14
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125
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4-18
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125
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4-18
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65
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2 1/2
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46
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70
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453
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125
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125
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130
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4-14
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145
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4-18
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145
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4-18
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80
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3
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46
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83
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478
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125
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125
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150
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4-18
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160
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8-18
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160
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8-18
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100
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4
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52
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105
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519
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125
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125
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170
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4-18
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180
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8-18
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180
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8-18
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125
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5
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56
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115
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713
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325
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245
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200
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8-18
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210
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8-18
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210
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8-18
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150
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6
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56
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137
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749
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325
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245
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225
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8-18
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240
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8-22
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240
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8-22
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200
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8
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60
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164
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843
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325
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245
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280
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8-18
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295
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8-22
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295
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12-22
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250
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10
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68
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206
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947
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363
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313
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335
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12-18
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350
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12-22
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355
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12-26
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300
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12
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78
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230
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1013
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363
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313
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395
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12-22
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400
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12-22
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410
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12-26
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350
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14
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78
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248
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1046
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363
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313
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445
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12-22
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460
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16-22
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470
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16-26
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400
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16
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102
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289
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1135
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363
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313
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495
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16-22
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515
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16-26
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525
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16-30
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450
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18
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114
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320
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1328
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465
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439
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550
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16-22
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565
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20-26
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585
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20-30
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500
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20
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127
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343
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1226
|
546
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431
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600
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20-22
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620
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20-26
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650
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20-33
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600
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24
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154
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413
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1394
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546
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556
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705
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20-26
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725
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20-30
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770
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20-36
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700
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28
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165
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478
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1534
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546
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556
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810
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24-26
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840
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24-30
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840
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24-36
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800
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32
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190
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525
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1659
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546
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556
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920
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24-30
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950
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24-33
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950
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24-39
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900
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36
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203
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585
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1748
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617
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706
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1020
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24-30
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1050
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28-33
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1050
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28-39
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1000
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40
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216
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640
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1805
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632
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706
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1120
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28-30
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1160
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28-36
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1170
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28-42
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1200
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48
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254
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755
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2035
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632
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706
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1340
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32-33
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1380
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32-39
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1390
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32-48
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1400
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56
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279
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910
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2310
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790
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1338
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1560
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36-36
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1590
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36-42
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1590
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36-48
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1600
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64
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318
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1030
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2845
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868
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1476
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1760
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40-36
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1820
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40-48
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1820
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40-56
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1800
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72
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356
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1140
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3060
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868
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1476
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1970
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44-39
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2020
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44-48
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2020
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44-56
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2000
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80
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406
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1250
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3350
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965
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1600
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2180
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48-42
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2230
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48-48
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2230
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48-62
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Note: if the user needs the valve plate lining rubber and other special requirements, please specify when ordering.。
Order notice：
一、①D971X electric folder type soft sealing butterfly valve product name and model II D971X electric folder type soft sealing butterfly valve caliber D971X electric folder type soft sealing butterfly valve with accessories so that we for your correct selection。
二、If the design unit has selected the company's D971X electric folder type of soft seal butterfly valve, please press the D971X electric folder type of soft sealing butterfly valve directly to our sales department order。
三、When the use of the occasion is very important or the environment is more complex, please try to provide design drawings and detailed parameters, by our experts for your audit checks.
Thank you for visiting our website [http://www.zshvalve.com], if you have any questions. You can call us, we will try our best to provide you with quality service
D971X electric butterfly valve: GB/T2238-1989
Flange connection size: GB/T9113.1-2000; GB/T9115.1-2000; JB78
Structure length: GB/T12221-1989
Pressure test: GB/T13927-1992; JB/T9092-1999
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