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PQ647TC 耐磨陶瓷密封偏心半球阀 Partial wear-resisting(control) ceramic super-hard sealing face segmental ball valve
工作原理 Operation principle
由阀杆带动关闭件绕旋转中心点转动时，球体由另点移至第三点，此时相对阀门中心点，从另点的第三点轨迹为一凸轮状偏心，向下进入阀座使阀门关闭保持密封。该阀由于存在上述凸轮原理，阀门关闭件从开启到关闭过程中，作用在阀座上的力逐渐增大密封比压，直至密封，反之亦然。这就大大改善了以往球阀的密封状态和密封效果，适合高温、高压及磨损严重的场合使用，流通能力达，密封性能好，使用寿命长。
Driven by the stem to close one to wind the rotatory central point while rotating, the spheroid is moved to the third a bit more separately, relative valve central point at this moment, form the third orbit a bit one cam form partial another, enter it and make it close to keep sealing. Because the cam principle of mentioned above, the valve closes one from course of closing, strength that act on valve seat increase gradually, close pieces of between surface and the valve flat break away from to keep in touch at all, and crescent to seal than pigeonhole, until totally sealing, the opposite is also true. This has improved sealed states and sealed results of the past ball valve greatly, suit high temperature, high pressure and wear and tear serious occasion use, circulate ability to be heavy, characteristic of good performance, having long performance life etc.
偏心耐磨(调节)陶瓷、超硬密封面半球阀产品图 偏心耐磨(调节)陶瓷、超硬密封面半球阀外形尺寸图
主要性能规范 Specifications
名称 Name | (调节)陶瓷半球阀 (Control)ceramic half ball valve | 超硬密封面半球阀 Super hard packing surface half ball valve | |
公称通径Nominal diameter | 25～400 | 25～400 | |
公称压力Nominal pressure | 1.6, 2.5, 4.0, 6.4 | 1.6, 2.5, 4.0, 6.4 | |
试验压力 Test pressure | 强度 Intensity | 2.4, 3.8, 6.0, 9.6 | 2.4, 3.8, 6.0, 9.6 |
密封 Seal | 1.8, 2.8, 4.4, 7.1 | 1.8, 2.8, 4.4, 7.1 | |
适用温度 Applicable Temperature | |||
适用介质 Applicable medium | 煤粉、煤渣、粉状颗粒等腐蚀性介质 coal dust, slack, slack, limestone, Gypsum slurry and corrosive medium | ||
驱动方式 Drive type | 手动、电动、气动 Manual, electrically operated, imposing manner | ||
连接形式 Connection form | 法兰Flange | ||
主要零件材料 Main parts of material
名称 Name | 陶瓷半球阀 Ceramic half ball valve | 超硬密封面半球阀 extra hard seal surface half ball valve |
阀体body | WCB, 304, 316 | WCB, 304, 316 |
阀杆 stem | 2Cr13, 304, 316 | 2Cr13, 304, 316 |
阀座 seat | 陶瓷硬度HV≥1100 Ceramic hardness HV≥1100 | 不锈钢表面超硬处理 Stainless steel surface extra hard handle |
球体 ball | 陶瓷硬度HV≥1100 Ceramic hardness HV≥1100 | 不锈钢、硬度HRC60～70 stainless steel HRC60～70 |
流道 flow channel | 陶瓷硬度HV≥1100 Ceramic hardness HV≥1100 | 碳钢、HRC60~70 Carbon steel HRC60~70 |
填料 packing | 柔性石墨 Flexible graphite | |
主要连接尺寸 Main connecting dimensions
型号Type | PN | DN | L | D | D1 | D2 | b | n-Φ |
PNQ47TC PNQ47SY | 1.6MPa | 25 | 127 | 115 | 85 | 65 | 14 | 4-M12 |
32 | 140 | 135 | 100 | 78 | 16 | 4-M16 | ||
40 | 165 | 145 | 110 | 85 | 16 | 4-M16 | ||
50 | 178 | 160 | 125 | 100 | 16 | 4-M16 | ||
65 | 190 | 180 | 145 | 120 | 18 | 4-M16 | ||
80 | 203 | 195 | 160 | 135 | 20 | 8-M16 | ||
100 | 229 | 215 | 180 | 155 | 20 | 8-M16 | ||
125 | 254 | 245 | 210 | 185 | 22 | 8-M16 | ||
150 | 267 | 280 | 240 | 210 | 24 | 8-M20 | ||
200 | 292 | 335 | 295 | 265 | 26 | 12-M20 | ||
250 | 330 | 405 | 355 | 320 | 30 | 12-M22 | ||
300 | 356 | 460 | 410 | 375 | 30 | 12-M22 | ||
350 | 381 | 520 | 470 | 435 | 34 | 12-M22 | ||
400 | 406 | 580 | 525 | 485 | 36 | 16-M27 |
型号Type | PN | DN | L | D | D1 | D2 | b | n-Φ |
PNQ47TC PNQ47SY | 2.5MPa | 25 | 127 | 115 | 85 | 65 | 16 | 4-M12 |
32 | 140 | 135 | 100 | 78 | 18 | 4-M16 | ||
40 | 165 | 145 | 110 | 85 | 18 | 4-M16 | ||
50 | 178 | 160 | 125 | 100 | 20 | 4-M16 | ||
65 | 190 | 180 | 145 | 120 | 22 | 8-M16 | ||
80 | 203 | 195 | 160 | 135 | 22 | 8-M16 | ||
100 | 229 | 230 | 190 | 160 | 24 | 8-M20 | ||
125 | 254 | 270 | 220 | 188 | 28 | 8-M22 | ||
150 | 267 | 300 | 250 | 218 | 30 | 8-M22 | ||
200 | 292 | 360 | 310 | 278 | 34 | 12-M22 | ||
250 | 330 | 425 | 370 | 332 | 36 | 12-M27 | ||
300 | 356 | 485 | 430 | 390 | 40 | 16-M27 | ||
350 | 381 | 550 | 490 | 448 | 44 | 16-M30 | ||
400 | 406 | 610 | 550 | 505 | 48 | 16-M30 | ||
4.0MPa | 25 | 127 | 115 | 85 | 65 | 16 | 4-M12 | |
32 | 140 | 135 | 100 | 78 | 18 | 4-M16 | ||
40 | 165 | 145 | 110 | 85 | 18 | 4-M16 | ||
50 | 178 | 160 | 125 | 100 | 20 | 4-M16 | ||
65 | 190 | 180 | 145 | 120 | 22 | 8-M16 | ||
80 | 203 | 195 | 160 | 135 | 22 | 8-M16 | ||
100 | 229 | 230 | 190 | 160 | 24 | 8-M20 | ||
125 | 254 | 270 | 220 | 188 | 28 | 8-M22 | ||
150 | 267 | 300 | 250 | 218 | 30 | 8-M22 | ||
200 | 292 | 375 | 320 | 282 | 38 | 12-M27 | ||
250 | 330 | 445 | 385 | 345 | 42 | 12-M30 | ||
300 | 356 | 510 | 450 | 408 | 46 | 16-M30 | ||
350 | 381 | 570 | 510 | 465 | 52 | 16-M30 | ||
400 | 406 | 655 | 585 | 535 | 58 | 16-M36 |
型号Type | PN | DN | L | D | D1 | D2 | b | n-Φ |
PNQ47TC PNQ47SY | 6.4MPa | 25 | 127 | 135 | 100 | 78 | 22 | 4-M16 |
32 | 140 | 150 | 110 | 82 | 24 | 4-M20 | ||
40 | 165 | 165 | 125 | 95 | 24 | 4-M20 | ||
50 | 178 | 175 | 135 | 105 | 26 | 4-M20 | ||
65 | 190 | 200 | 160 | 130 | 28 | 8-M20 | ||
80 | 203 | 210 | 170 | 140 | 30 | 8-M20 | ||
100 | 229 | 250 | 200 | 168 | 32 | 8-M22 | ||
125 | 254 | 295 | 240 | 202 | 36 | 8-M27 | ||
150 | 267 | 340 | 280 | 240 | 38 | 8-M30 | ||
200 | 292 | 405 | 345 | 300 | 44 | 12-M30 | ||
250 | 330 | 470 | 400 | 352 | 48 | 12-M36 | ||
300 | 356 | 530 | 460 | 412 | 54 | 16-M36 |
