Mae casin API ERW yn gweithredu fel achubiaeth gweithrediadau ffynnon olew. O ystyried amodau daearegol amrywiol, mae cyflyrau straen cymhleth yn drech mewn amgylcheddau twll i lawr - tynnol, cywasgol, plygu a straen torsional yn gweithredu ar yr un pryd ar gorff y bibell, gan osod gofynion ansawdd llym ar y casin ei hun. Gall unrhyw fethiant casin oherwydd diffygion cynhenid arwain at lai o gynhyrchu ffynnon neu hyd yn oed gael y gorau i gael ei adael yn dda.
Mae Gnee Group yn gallu cynhyrchu casinau ansawdd uchel - sy'n cwrdd â safonau API, gan gynnig ystod eang o fanylebau a gwasanaethau arolygu.
Manyleb Casio GNEE ERW
| Diamedr y tu allan | Pwysau Enwol | Trwch wal | Raddied | Math o Gysylltiad* | |||
| yn. | mm | lb/ft | kg/m | yn. | mm | ||
| 5-1/2 | 139.70 | 14.00 | 20.83 | 0.244 | 6.20 | J55/K55 | Ps |
| 15.50 | 23.07 | 0.275 | 6.98 | J55/K55 | PSLB | ||
| 17.00 | 25.30 | 0.304 | 7.72 | J55/K55 | PSLB | ||
| 6-5/8 | 168.28 | 24.00 | 35.72 | 0.352 | 8.94 | J55/K55 | PSLB |
| 7 | 177.80 | 20.00 | 29.76 | 0.272 | 6.91 | J55/K55 | Ps |
| 23.00 | 34.23 | 0.317 | 8.05 | J55/K55 | PSLB | ||
| 26.00 | 38.69 | 0.362 | 9.19 | J55/K55 | PSLB | ||
| 8-5/8 | 219.08 | 24.00 | 35.75 | 0.264 | 6.71 | J55/K55 | Ps |
| 28.00 | 41.67 | 0.304 | 7.72 | J55/K55 | Ps | ||
| 32.00 | 47.66 | 0.352 | 8.94 | J55/K55 | PSLB | ||
| 36.00 | 53.62 | 0.400 | 10.16 | J55/K55 | PSLB | ||
| 9-5/8 | 244.48 | 36.00 | 53.57 | 0.352 | 8.94 | J55/K55 | PSLB |
| 40.00 | 59.53 | 0.395 | 10.03 | J55/K55 | PSLB | ||
| 10-3/4 | 273.05 | 40.50 | 60.32 | 0.350 | 8.89 | J55/K55 | PSB |
| 45.50 | 67.78 | 0.400 | 10.16 | J55/K55 | PSB | ||
| 13-3/8 | 339.70 | 48.00 | 71.43 | 0.330 | 8.38 | J55/K55 | PSB |
| 54.50 | 81.18 | 0.380 | 9.65 | J55/K55 | PSB | ||
| 61.00 | 90.86 | 0.430 | 10.92 | J55/K55 | PSB | ||
| 68.00 | 101.29 | 0.480 | 12.19 | J55/K55 | PSB | ||
