Technique standard
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Design
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GB/T 12235
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Face to Face
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GB/T 12221 HG/T 3704-2003 ASME B16.10
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Flange dimension
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HG20592-97 ANSI B16.5a
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Mode of driving
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Hand,electrically-driven,air-operated
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Nominal Pressure
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0.6-2.5MPa/Class 150
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Pressure test
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GB/T 13927,API 1598
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Main parts material specifications
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Name
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Refined D.I
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Cast steel
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Stainless steel
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QT
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C
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P
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R
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RL
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RL
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Body/Bonnet
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QT400
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WCB
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CF8
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CF8M
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CF3
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CF3M
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|||
Stem
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2Cr13
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2Cr13
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CF8
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CF8M
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CF3
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CF3M
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|||
Inner lining
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FEP(F46)/PTFE(F4)/PFA/PO/PE
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Daiphragm
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FEP(F46)/CR/PFA/FPDM
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Disc
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QT400
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WCB
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CF8
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CF8M
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CF3
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CF3M
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Bolt
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35
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35
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SS316
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SS316
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SS302
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SS302
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Nut
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45
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45
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SS304
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SS304
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S304
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SS304
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Main dimensions
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DN
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L
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D
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D1
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D2
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f
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b
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Z-Φd
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D0
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H
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15
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125
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95
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65
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45
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3
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15
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4-14
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120
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120
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20
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135
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105
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75
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55
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3
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17
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4-14
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120
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120
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25
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145
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115
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85
|
65
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3
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17
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4-14
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160
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130
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32
|
160
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140
|
100
|
75
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3
|
19
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4-18
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160
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135
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40
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180
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150
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110
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85
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3
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19
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4-18
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180
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160
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50
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210
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165
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125
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100
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3
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21
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4-18
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200
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165
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65
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250
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185
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145
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120
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3
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21
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4-18
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250
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200
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80
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300
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200
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160
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135
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3
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22
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8-18
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280
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220
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100
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350
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220
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180
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155
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3
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23
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8-18
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300
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275
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125
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400
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250
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210
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185
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4
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24
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8-18
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320
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335
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150
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460
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285
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240
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210
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4
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26
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8-23
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350
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380
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200
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570
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340
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295
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265
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4
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26
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12-23
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450
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500
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250
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680
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405
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355
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320
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4
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28
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12-26
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500
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575
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