PQ647TC 耐磨陶瓷密封偏心半球阀
工作原理
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，直至完全密封，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。
偏心耐磨(调节)陶瓷、硬密封面半球阀产品图 偏心耐磨(调节)陶瓷、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 | 硬密封面半球阀 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 | 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 |
