In valve line, we also face many problem to help client to calculate and choose the right valve type when clients offer information of working condition.
Compared to calculate, choosing the righ valve type is a complex and important work. That's because of calculating is formula computing. There is given formula and full in the real data, it is ok. It is depend on accurancy of process parameters. However, to choose right valve type is including lots of knowledge.
For example, clients need a shut off valve on pipeline, offer work temperature, work pressure and medium. We have to choose valve type(ball valve, gate valve or globe valve), material, size, pressure. After finished choosing valve type, we also need to choosing right actuator.
Right selection not only save human resouce, material and financial resoruces to a large extent, but also gained a better social and economic benefits.
碳素钢压力温度基准 ( 第Ⅰ类 ) A216-WCB A105
Kgf/cm^2
Temp.℃ 150Lb 300Lb 400Lb 600Lb 900Lb 1500Lb 2000Lb 2500Lb
-30～38 20 52 69 104 156 260 347 434
93 18.5 47.5 63.5 95 142 237 316 395
149 16 46 61.5 92.5 139 231 308 385
184 15 45 60 90.5 136 226 301 376
204 14 44.5 59.5 89.5 134 223 297 371
230 13 43 58 87 130 217 290 362
240 12.5 42.6 57 86 128.5 215 287 358
260 12 42 56 84.5 126 211 281 351
265 12 41.5 55.5 84 125 209 279 348
316 10 38.5 51.5 77 115 192 256 321
343 9 37.5 50.5 75.5 113 189 252 315
371 7.5 37.5 50 75 112 187 250 312
399 6.5 35.5 47 71 106 177 236 295
427 5.5 29 39 58 87 145 193 241
454 (4.5) (19) (25) (37.5) (57) (94) (126) (157)
Pressure test 31.5 79 103.5 156.5 236 392 522 652
