BJ45W直流式保溫截止閥的保溫夾套焊裝于閥門的兩法蘭之間，閥門的側面、底部設置有保溫夾套的兩個連接口。直流保溫截止閥特別適用于化工、化肥行業的管路上，夾套內涵入蒸汽能防止介質結晶。廣泛應用于石油、化工、冶金、制藥等各類系統中，以輸送常溫下會凝固的高粘度介質
保溫截止閥具有保溫,保冷特性,適用于石油,化工,冶金,制藥等行業.
| 產品型號 | 閥體、閥蓋 | 閥 瓣 | 填 料 |
| BJ45W-25P、BJ45W-40P、BJ45W-64P | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | PTFE |
| 聚四乙稀 |
| BJ45W-25P/R、BJ45W-40P、BJ45W-64P | ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti | PTFE |
| 聚四乙稀 |
| 型號 | 公稱壓力PN（Mpa） | 試驗壓力 | 適用溫度 | 適用介質 | 保溫套壓力 |
| shell | seal |
| BJ45W-25P | 2.5 | 3.75 | 2.75 | ≤200 | Acetic urea
1 | ≤1.3 |
| BJ45W-40P | 4.0 | 6.0 | 4.4 |
| BJ45W-64P | 6.4 | 9.0 | 6.6 | Acetic urea |
| BJ45W-25P | 2.5 | 3.75 | 2.75 |
| BJ45W-40P | 4.0 | 6.0 | 4.4 |
| BJ45W-64P | 6.4 | 9.0 | 6.6 |
| 公稱壓力 | 公稱通徑 | 尺 寸 |
| L | D | D1 | D2 | D3 | B1 | Fo | b | D6 | 3-G | Z-Φd | H | H1 | Do |
2.5
4.0 | 15 | 170 | 105 | 75 | 55 | 35 | 8 | 4 | 16 | 51 | 3/8 | 4-Φ14 | 250 | 262 | 120 |
| 20 | 190 | 115 | 115 | 65 | 42 | 8 | 4 | 16 | 58 | 3/8 | 4-Φ14 | 292 | 308 | 140 |
| 25 | 210 | 135 | 135 | 78 | 50 | 8 | 4 | 18 | 66 | 3/8 | 4-Φ18 | 340 | 375 | 160 |
| 32 | 230 | 145 | 145 | 85 | 60 | 8 | 4 | 18 | 76 | 3/8 | 4-Φ18 | 338 | 375 | 160 |
2.5
4.0 | 40 | 260 | 160 | 125 | 100 | 72 | 8 | 4 | 20 | 65 | 1/2 | 4-Φ18 | 360 | 386 | 160 |
| 50 | 300 | 180 | 145 | 120 | 94 | 8 | 4 | 22 | 88 | 1/2 | 8-Φ18 | 410 | 450 | 240 |
| 65 | 340 | 195 | 160 | 130 | 105 | 8 | 4 | 22 | 110 | 1/2 | 8-Φ18 | 440 | 485 | 240 |
| 80 | 380 | 230 | 190 | 160 | 128 | 11 | 4.5 | 24 | 121 | 1/2 | 8-Φ23 | 540 | 600 | 280 |
| 100 | 430 | 270 | 220 | 188 | 154 | 11 | 4.5 | 28 | 150 | 1/2 | 8-Φ25 | 560 | 625 | 320 |
| 125 | | 300 | 250 | 218 | 182 | 11 | 4.5 | 30 | 176 | 1/2 | 8-Φ25 | 625 | 737 | 360 |
| 150 | 550 | 330 | 280 | 248 | 2 | 11 | 4.5 | 32 | 204 | 1/2 | 12-Φ25 | 720 | 790 | 360 |
| 6.4 | 25 | 235 | 160 | 125 | 8 | 50 | 8 | 4 | 22 | | 1/2 | 4-Φ18 | 375 | 375 | 160 |
| 32 | 260 | 165 | 125 | 88 | 60 | 8 | 4 | 24 | | 1/2 | 4-Φ23 | 383 | 383 | 160 |
| 50 | 300 | 200 | 160 | 130 | | | 4 | 26 | 110 | 1/2 | 8-Φ23 | 450 | 450 | 240 |
| 65 | 340 | 210 | 170 | 140 | | | 4 | 30 | 121 | 1/2 | 8-Φ23 | 510 | 510 | 240 |
| 100 | 430 | 270 | 220 | 188 | 154 | 154 | 4.5 | 36 | | 1/2 | 8-Φ25 | 670 | 670 | 400 |
| 100 | 415 | 300 | 250 | 218 | | | 4.5 | 32 | | 1/2 | 8-Φ25 | 670 | 670 | 400 |
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