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| 直流式保溫截止閥 |
| 產(chǎn)品型號(hào)：BJ45W |
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保溫截止閥產(chǎn)品性能規(guī)范：
該閥適用于化工、化肥行業(yè)的管路上，夾套內(nèi)涵入蒸汽能防止介質(zhì)結(jié)晶。
應(yīng)用規(guī)范
1、設(shè)計(jì)制造按GB12234-89 GB12234-89
2、結(jié)構(gòu)長(zhǎng)度按GB12221-89 GB12221-89
3、法蘭尺寸按JB/T79-94 JB/779-94
4、閥門檢查和試驗(yàn)按GB13927 |
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型號(hào)
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公稱壓力PN(MPa)
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試驗(yàn)壓力
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適用溫度
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適用介質(zhì)
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保溫套壓力(MPa)
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殼體
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密封
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BJ45W-25P
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2.5
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3.75
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2.75
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≤200
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硝酸類
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≤1.0
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BJ45W-40P
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4.0
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6.0
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4.4
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BJ45W-64P
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6.4
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9.0
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6.6
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BJ45W-25R
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2.5
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3.75
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2.75
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硝酸類
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BJ45W-40R
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4.0
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3.0
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4.4
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BJ45W-64R
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6.4
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9.0
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6.6
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I型主要外形尺寸和連接尺寸(II型法蘭大一級(jí))：
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公稱壓力PN
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公稱通徑DN
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尺寸
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L
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D
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D1
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D2
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D3
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B1
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fo
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B
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D6
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3-G
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Z-Φd
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H
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H1
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Do
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2.5
4.0
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15
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170
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105
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75
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55
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35
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8
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4
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16
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51
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3/8
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4-Φ14
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250
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262
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120
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20
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190
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115
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85
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65
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42
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8
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4
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16
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58
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3/8
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4-Φ14
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292
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308
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140
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25
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210
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135
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100
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78
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50
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8
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4
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18
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66
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3/8
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4-Φ18
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340
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375
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160
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32
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230
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145
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110
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85
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60
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8
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4
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18
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76
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1/2
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4-Φ18
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338
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375
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160
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40
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260
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160
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125
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100
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72
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8
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4
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20
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88
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1/2
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4-Φ18
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360
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386
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160
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50
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300
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180
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145
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120
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94
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8
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4
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22
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110
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1/2
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8-Φ18
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410
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450
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240
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65
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340
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195
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160
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135
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105
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8
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4
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22
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121
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1/2
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8-Φ18
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440
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485
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240
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80
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380
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230
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190
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160
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128
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11
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4.5
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24
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150
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1/2
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8-Φ23
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540
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600
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280
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100
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430
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270
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220
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188
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154
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11
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4.5
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28
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176
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1/2
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8-Φ25
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560
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625
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320
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125
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490
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300
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250
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218
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182
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11
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4.5
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30
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204
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1/2
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8-Φ25
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625
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737
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360
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150
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550
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330
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280
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248
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212
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11
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4.5
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32
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204
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1/2
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12-Φ25
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720
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790
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360
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保溫截止閥主要零件材料：
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零件名稱
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閥體、閥蓋
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閥瓣
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墊片
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BJ45W-25P、BJ45W-40P、BJ45W-64P
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鉻鎳鈦鋼
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鉻鎳鈦鋼+硬質(zhì)合金
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聚四氟乙烯
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BJ45W-25P、BJ45W-40P、BJ45W-64P
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鉻鎳鉬鈦鋼
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鉻鎳鉬鈦鋼+硬質(zhì)合金
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聚四氟乙烯
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