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有靠背软密封蝶阀
Middle-line soft seal butterfly valve is the preferred conventional butterfly valve for pipeline. The utility model has the advantages of simple structure, small flow resistance coefficient, near-straight flow characteristics, and is free of debris, in light weight, convenient to be installed, and small in driving torque. This valve can be used to cut off media and also to regulate the flow of media used. Its actuating device can be made according to user's requirements, either in manual, electric, pneumatic, or other forms. Different materials are selected and seal rings of different materials are provided. The valve is applicable to different media and working conditions and makes the cost and performance to achieve the best match.The soft seal butterfly valve is suitable for the temperature lower than 120℃ and nominal pressure lower than 1.6 MPa,and it is suitable for the industries such as water supply and drainage, sewage, food, heating, gas, shipping, hydropower, metallurgy, energy system, and textile,particularly suitable for two-way seal box valve bodies that are easy to be rusted.
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公称通径DN(mm)
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32～1200
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公称压力PN(MPa)
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1.0～1.6
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公称压力Ps(MPa)
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强度试验
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1.5～2.4
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密封试验
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1.1～1.76
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主要
零件
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阀体
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HT200、QT450、WCB、CF8、CF8M、CF3M
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阀板
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球铁镀镍、球铁镀尼龙、CF8、CF8M、CF3M、2507、1.4469、1.4529全衬胶板等
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密封圈
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EPDM、NBR、PTFE、氟橡胶等
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连接形式
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对夹式、法兰式
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规格
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连接尺寸
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||||||||||||
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H1
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H2
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H3
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n-Φd
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ΦD
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ΦD1
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L
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ΦB
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ΦA
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n-ΦC
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F*F
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|||
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PN10
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PN16
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PN10
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PN16
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||||||||||
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DN40
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65
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119
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11
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4--20
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4--20
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110
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110
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89
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34
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72
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50
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4-7
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11*11
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DN50
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70
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131
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11
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4--20
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4--20
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125
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125
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97
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42
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72
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50
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4-7
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11*11
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DN65
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72
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148
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11
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4--20
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4--20
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145
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145
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112
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45
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72
|
50
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4-7
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11*11
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DN80
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90
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155
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11
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4--20
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4--20
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160
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160
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127
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45
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72
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50
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4-7
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11*11
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DN100
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108
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171
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14
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4--20
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4--20
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180
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180
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160
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52
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92
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70
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4-10
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14*14
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DN125
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120
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193
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17
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4--20
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4--20
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210
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210
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188
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55
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92
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70
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4-10
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17*17
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DN150
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134
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210
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17
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4--23
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4--23
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240
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240
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216
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56
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92
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70
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4-10
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17*17
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DN200
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166
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246
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22
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4--23
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4--23
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295
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295
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268
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61
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125
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102
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4-12
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22*22
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DN250
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206
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282
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22
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4--23
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4--26
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350
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355
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330
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66
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125
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102
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4-12
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22*22
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DN300
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234
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311
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27
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4--23
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4--26
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400
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410
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384
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77
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150
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125
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4-14
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27*27
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DN350
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265
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345
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27
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4--23
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4--26
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460
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470
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422
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77
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150
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125
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4-14
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27*27
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DN400
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297
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377
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36
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4--26
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4--30
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515
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525
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473
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86
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175
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140
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4-18
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32*32
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DN450
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331
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412
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36
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4--26
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4--30
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565
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585
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526
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104
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175
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140
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4-18
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36*36
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DN500
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361
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440
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46
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4--26
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4--33
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620
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650
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577
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130
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210
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165
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4-22
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36*36
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DN600
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459
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562
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46
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4--30
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4--36
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725
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770
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693
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152
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300
|
254
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8-18
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46*46
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有靠背软密封蝶阀
Middle-line soft seal butterfly valve is the preferred conventional butterfly valve for pipeline.
