一、J41H-16C、J41H-25C、J41H-40C、J41H-64C法兰铸钢截止阀的主要用途：
J41H铸钢截止阀适用于公称压力PN1．6～16MPa，工作温度0～425℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。驱动方式有手动、齿轮传动、电动、气动等。J41H铸钢法兰截止阀的启闭件是圆柱形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。国标截止阀只适用于全开和全关，一般不用来调节流量，定做时允许作调节和节流。型号： J41H-16C（铸钢）、J41H-16P（304）、J41H-16R（316）、J41H-25C、J41H-40C、J41H-64C、J41H-64P、J41H-64R。
二、J41H-16C、J41H-25C、J41H-40C、J41H-64C法兰铸钢截止阀的产品特点：
1、结构简单，制造和维修比较方便
2、工作行程小，启闭时间短
3、密封性好，密封面间磨擦力小，寿命较长
三、J41H-16C、J41H-25C、J41H-40C、J41H-64C法兰铸钢截止阀的主要零件材料：
阀盖 | 阀体 | 阀杆 | 阀瓣 | 密封圈 | 填料 | 适用介质 | 适用温度(≤℃) |
WCB | 2Crl3 | WCB+D507MO | D577 | 柔性石墨 | 水、油品、蒸汽 | 425 | |
四、J41H-16C、J41H-25C、J41H-40C、J41H-64C法兰铸钢截止阀的主要技术参数：
公称压力(MPa) | 试验压力 (HPa) | 适用介质 | 适用温度℃ | ||
壳体 | 密封(液体) | 低压密封 (气体) | |||
J41H-16C | 2.4 | 1.76 | 0.6 | 水、蒸汽、油品 | ≤425 |
J41H-25C | 3.75 | 2.75 | |||
J41H-40C | 6 | 4.4 | |||
J41H-64C | 9.6 | 7.04 | |||
五J41H-16C、J41H-25C、J41H-40C、J41H-64C法兰铸钢截止阀的主要外形尺寸(法兰尺寸按GB12235-1989标准)：
型号 | 公称压力PN(Mpa) | 公称通径DN(mm) | 尺寸(mm) | |||
L | H | H1 | Do | |||
J41H-16C J41H-16P J41H-16R | 1.6 | 10 | 130 | 198 | 207 | 120 |
15 | 130 | 215 | 228 | 120 | ||
20 | 150 | 258 | 272 | 140 | ||
25 | 160 | 275 | 292 | 160 | ||
32 | 190 | 280 | 308 | 160 | ||
40 | 200 | 330 | 354 | 200 | ||
50 | 230 | 350 | 380 | 240 | ||
65 | 290 | 400 | 428 | 240 | ||
80 | 310 | 355 | 390 | 280 | ||
100 | 350 | 415 | 460 | 280 | ||
125 | 400 | 460 | 520 | 320 | ||
150 | 480 | 510 | 580 | 360 | ||
200 | 600 | 710 | 806 | 400 | ||
250 | 650 | 880 | 720 | |||
300 | 750 | 995 | 800 | |||
J41H-25C J41H-25P J41H-25R | 2.5 | 10 | 130 | 198 | 207 | 120 |
15 | 130 | 233 | 241 | 120 | ||
20 | 150 | 275 | 285 | 140 | ||
25 | 160 | 285 | 300 | 160 | ||
32 | 180 | 302 | 327 | 180 | ||
40 | 200 | 355 | 385 | 200 | ||
50 | 230 | 362 | 397 | 240 | ||
65 | 180 | 365 | 405 | 280 | ||
80 | 310 | 369 | 420 | 280 | ||
100 | 350 | 370 | 425 | 320 | ||
125 | 400 | 558 | 608 | 400 | ||
150 | 480 | 611 | 692 | 400 | ||
200 | 600 | 721 | 806 | 400 | ||
250 | 650 | 880 | 720 | |||
300 | 750 | 995 | 800 | |||
J41H-40C J41H-40P J41H-40R | 4.0 | 15 | 130 | 220 | 230 | 120 |
20 | 150 | 262 | 275 | 140 | ||
25 | 160 | 280 | 295 | 160 | ||
32 | 190 | 280 | 308 | 160 | ||
40 | 200 | 330 | 354 | 200 | ||
50 | 230 | 350 | 380 | 240 | ||
65 | 290 | 400 | 420 | 280 | ||
80 | 310 | 430 | 462 | 320 | ||
100 | 350 | 465 | 506 | 360 | ||
125 | 400 | 505 | 556 | 400 | ||
150 | 480 | 611 | 692 | 400 | ||
200 | 600 | 722 | 831 | 400 | ||
250 | 730 | |||||
300 | 850 | |||||
J41H-64C J41H-64P J41H-64R | 6.4 | 15 | 170 | 195 | 210 | 140 |
20 | 190 | 228 | 258 | 160 | ||
25 | 210 | 250 | 275 | 180 | ||
32 | 230 | 325 | 355 | 200 | ||
40 | 260 | 360 | 395 | 240 | ||
50 | 300 | 410 | 450 | 280 | ||
65 | 340 | 450 | 494 | 320 | ||
80 | 380 | 485 | 531 | 360 | ||
100 | 430 | 537 | 588 | 400 | ||
150 | 550 | 646 | 715 | 450 | ||
