【产品用途】
公司生产的J641H、J641Y、J641W 气动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。
【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
Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.
【执行标准】
设计规范：GB/T 12235
结构长度：GB/T 12221
法兰连接：JB/T 79
试验与检验：JB/T 9002
产品标识：GB/T 12220
供货规范：JB/T 7928
【性能参数】
型号 | J641H-16C～160C | J641Y-16C～160C | J641W-16P～160P | |
工作压力（MPa） | 1.6～16.0 | |||
适用温度（℃） | ≤425 | ≤150 | ||
适用介质 | 水、蒸汽、油品 | 弱腐蚀性介质 | ||
材料 | 阀体、阀盖 | 碳素钢 | 铬镍钛不锈钢 | |
阀杆 | 铬不锈钢 | 铬镍钛不锈钢 | ||
密封面 | 堆焊铁基合金 | 堆焊硬基合金 | 本体材料 | |
填料 | 石棉石墨、柔性石墨、聚四氟乙烯 | |||
【主要外形和连接尺寸】
公称通径 | 主要外形尺寸和连接尺寸 | |||||||
L | D | D1 | D2 | b | Z-d | H | D0 | |
J641H-16C | ||||||||
15 | 130 | 95 | 65 | 45 | 14-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 16-3 | 4-Φ18 | 310 | 200 |
50 | 230 | 160 | 125 | 100 | 16-3 | 4-Φ18 | 358 | 240 |
65 | 290 | 180 | 145 | 120 | 18-3 | 4-Φ18 | 373 | 240 |
80 | 310 | 195 | 160 | 135 | 20-3 | 8-Φ18 | 435 | 280 |
100 | 350 | 215 | 180 | 155 | 20-3 | 8-Φ18 | 500 | 300 |
125 | 400 | 245 | 210 | 185 | 22-3 | 8-Φ18 | 614 | 320 |
150 | 480 | 280 | 240 | 210 | 24-3 | 8-Φ23 | 674 | 360 |
200 | 600 | 335 | 295 | 265 | 26-3 | 12-Φ23 | 811 | 400 |
250 | 650 | 405 | 355 | 320 | 30-3 | 12-Φ25 | 969 | 450 |
300 | 750 | 460 | 410 | 375 | 30-3 | 12-Φ25 | 1145 | 580 |
350 | 850 | 520 | 470 | 435 | 34-4 | 16-Φ25 | 1280 | 640 |
400 | 980 | 580 | 525 | 485 | 36-4 | 16-Φ30 | 1452 | 640 |
J641H-25C | ||||||||
15 | 130 | 95 | 65 | 45 | 16-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 16-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 16-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 18-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 18-3 | 4-Φ18 | 310 | 200 |
50 | 230 | 160 | 125 | 100 | 20-3 | 4-Φ18 | 358 | 240 |
65 | 290 | 180 | 145 | 120 | 22-3 | 8-Φ18 | 373 | 240 |
80 | 310 | 195 | 160 | 135 | 22-3 | 8-Φ18 | 435 | 280 |
100 | 350 | 230 | 190 | 160 | 24-3 | 8-Φ23 | 500 | 300 |
125 | 400 | 270 | 220 | 188 | 28-3 | 8-Φ25 | 614 | 320 |
150 | 480 | 300 | 250 | 218 | 30-3 | 8-Φ25 | 674 | 360 |
200 | 600 | 360 | 310 | 278 | 34-3 | 12-Φ25 | 811 | 400 |
250 | 650 | 425 | 370 | 332 | 36-3 | 12-Φ30 | 969 | 450 |
300 | 750 | 485 | 430 | 390 | 40-4 | 16-Φ30 | 1145 | 580 |
350 | 850 | 550 | 490 | 448 | 44-4 | 16-Φ34 | 1280 | 640 |
400 | 980 | 610 | 550 | 505 | 48-4 | 16-Φ34 | 1452 | 640 |
【结构图片】
These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.
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