不锈钢保温截止阀，是主要用于石油、化工、冶金、制药等各类系统中，以输送常温下会凝固的高粘度介质，是bj45w直流夹套保温截止阀的保温夹套焊装于阀门的两法兰之间，阀门的侧面、底部设置有保温夹套的两个连接口。直流保温截止阀特别适用于化工、化肥行业的管路上，夹套内涵入蒸汽能防止介质结晶。保温截止阀被广泛应用于石油、化工、冶金、制药等各类系统中。
相关型号：bj45h,bj45w,bj45y,bj45h-16c,bj45w-16c,bj45y-16c等
不锈钢保温截止阀主要性能规范
chief property and specification
| 型号 type |
公称压力pn(mpa) nominalpressure |
试验压力ps（mpa） test pressure |
工作温度(℃) working temperature |
适用介质 applicable medium |
工作蒸汽压力 work steam pressure |
|
| 壳体shell | 密封seal | |||||
| bj45(h.w.y)-25p | 2.5 | 3.75 | 2.75 | ≤200 | 尿素、硝酸类 ureophil、nitric acid | ≤1.3 |
| bj45(h.w.y)-40p | 4.0 | 6.0 | 4.4 | |||
| bj45(h.w.y)-64p | 6.4 | 9.0 | 6.6 | 尿素、醋酸类 ureophil、acetrc acid | ||
| bj45(h.w.y)-25r | 2.5 | 3.75 | 2.75 | |||
| bj45(h.w.y)-40r | 4.0 | 6.0 | 4.4 | |||
| bj45(h.w.y)-64r | 6.4 | 9.0 | 6.6 | |||
不锈钢保温截止阀主要零件材料
material for main parts
| 零件名称 patr name |
阀体、阀盖 body,bonnet |
阀瓣 disc |
垫片 swat |
| bj45(h.w.y)-25p、bj45w-40p、 bj45w-64p | 铬镍钛阀cr.ni.ti steel | 铬镍钛阀+硬质合金cr.ni.ti steel+carbide alloy | 聚四氟乙烯 polytetrafluoroethylene |
| bj45(h.w.y)-25r、bj45w-40r、 bj45w-64r | 铬镍钼钛阀cr.ni.mo.ti steel | 铬镍钼钛阀+硬质合金cr.ni.mo.ti steel+carbide alloy | 聚四氟乙烯 polytetrafluoroethylene |
不锈钢保温截止阀主要外形尺寸和连接尺寸（mm）
main external and connecting dinensions(mm)
| 公称压力pn(mpa) nominal pressure |
公称通径dn(mm) nominal diameter |
尺寸(mm) dimensions |
|||||||||||||
| l | d | d1 | d2 | d3 | b1 | f0 | b | d6 | 3-g | z-φd | h | h1 | d0 | ||
2.5 4.0 |
15 | 170 | 105 | 75 | 55 | 35 | 8 | 4 | 16 | 51 | 3/8 | 250 | 262 | 120 | |
| 20 | 190 | 115 | 85 | 65 | 42 | 8 | 4 | 16 | 58 | 3/8 | 292 | 308 | 140 | ||
| 25 | 210 | 135 | 100 | 78 | 50 | 8 | 4 | 18 | 66 | 3/8 | 340 | 375 | 160 | ||
| 32 | 230 | 145 | 110 | 85 | 60 | 8 | 4 | 18 | 76 | 1/2 | 338 | 375 | 160 | ||
| 40 | 260 | 160 | 125 | 100 | 72 | 8 | 4 | 20 | 88 | 1/2 | 360 | 386 | 160 | ||
| 50 | 300 | 180 | 145 | 120 | 94 | 8 | 4 | 22 | 110 | 1/2 | 410 | 450 | 240 | ||
| 65 | 340 | 195 | 160 | 135 | 105 | 8 | 4 | 22 | 121 | 1/2 | 440 | 485 | 240 | ||
| 80 | 380 | 230 | 190 | 160 | 128 | 11 | 4.5 | 24 | 150 | 1/2 | 540 | 600 | 280 | ||
| 100 | 430 | 270 | 220 | 188 | 154 | 11 | 4.5 | 28 | 176 | 1/2 | 560 | 625 | 320 | ||
| 125 | 490 | 300 | 250 | 218 | 182 | 11 | 4.5 | 30 | 204 | 1/2 | 625 | 737 | 360 | ||
| 150 | 550 | 330 | 280 | 248 | 212 | 11 | 4.5 | 32 | 1/2 | 720 | 790 | 360 | |||
| 6.4 | 25 | 235 | 160 | 125 | 82 | 50 | 8 | 4 | 22 | 1/2 | 340 | 375 | 160 | ||
| 32 | 260 | 165 | 125 | 88 | 60 | 8 | 4 | 24 | 1/2 | 358 | 383 | 160 | |||
| 50 | 300 | 200 | 160 | 130 | 4 | 26 | 110 | 1/2 | 410 | 450 | 240 | ||||
| 65 | 340 | 210 | 170 | 140 | 4 | 30 | 121 | 1/2 | 485 | 510 | 240 | ||||
| 100 | 430 | 270 | 220 | 188 | 154 | 11 | 4.5 | 36 | 1/2 | 610 | 470 | 400 | |||
| 100 | 415 | 300 | 250 | 218 | 4.5 | 32 | 150 | 1/2 | 610 | 670 | 400 | ||||
