Bomba la washover ni zana maalum ambayo hutumiwa kwa kawaida kutoa sehemu iliyokwama ya kamba ya kuchimba kwenye kisima. TIANHE inatoa anuwai kamili ya bomba la washover kwa tasnia. TIANHE hutoa uzi wa kipekee wa FJWP ambao unachukua muunganisho wa hatua mbili wenye uzi wa bega ambao huhakikishia uundaji wa haraka na nguvu ya juu ya msokoto.
| Mfano |
Kanuni ya Bidhaa | OD | ID | Unene wa Ukuta | Ukubwa wa Mashimo | Mzigo wa Max.Tensile KN | Max. Tensile Load kN | Sehemu ya Uunganisho Torque Nm | Shinikizo la Muhuri MPa. |
| MM | |||||||||
| TXG114.30-8.56 | L21-190 | 114.30 | 97.18 | 8.56 | 120.65 | 80.90 | 390 | 9490 | 20 |
| TXG127-9.19 | L21-230 | 127 | 108.62 | 9.19 | 146.05 | 101.6 | 440 | 12202 | 20 |
| TXG139.70-9.17 | L21-270 | 139.70 | 121.36 | 9.17 | 152.4 | 117.48 | 500 | 14914 | 20 |
| TXG146.05-7.92 | L21-300 | 146.05 | 130.21 | 7.92 | 161.93 | 127.00 | 500 | 14914 | 20 |
| TXG146.05-9.00 | L21-320 | 146.05 | 128.05 | 9.00 | 161.93 | 120.65 | 560 | 16269 | 20 |
| TXG168.28-8.94 | L21-380 | 168.28 | 150.39 | 8.94 | 187.33 | 142.88 | 600 | 21693 | 15 |
| TXG177.80-9.19 | L21-420 | 177.80 | 159.42 |
9.19 | 200.03 | 152.40 | 640 | 24404 | 15 |
| TXG193.68-9.53 | L21-490 | 193.68 | 174.63 | 9.53 | 221.73 | 168.28 |
700 | 31183 | 15 |
| TXG193.68-10.92 | L21-500 | 193.68 | 171.83 | 10.92 | 212.73 | 165.10 | 810 | 36607 | 15 |
| TXG193.68-12.70 | L21-510 | 193.68 | 168.28 | 12.70 | 212.73 | 161.93 | 1060 | 43386 | 15 |
| TXG203.20-9.53 | L21-530 | 203.20 | 184.15 | 9.53 | 215.90 | 177.00 | 820 | 32539 | 15 |
| TXG206.38-9.40 | L21-540 | 206.38 | 187.58 | 9.40 | 215.90 | 177.80 | 830 | 32539 | 15 |
| TXG219.07-11.43 | L21-600 | 219.07 | 196.21 | 11.43 | 244.48 | 187.33 | 1100 | 47453 | 15 |
| TXG219.07-12.70 | L21-610 | 219.07 | 193.67 | 12.70 | 244.48 | 184.15 | 1220 | 54232 | 15 |
| TXG228.60-10.80 | L21-620 | 228.60 | 207.01 | 10.80 | 250.83 | 200.03 | 1260 | 47453 | 15 |
| TXG244.48-11.99 | L21-690 | 244.48 | 220.50 | 11.99 | 266.70 | 212.73 | 1460 | 67791 | 15 |
| TXG244.48-13.84 | L21-700 | 244.48 | 216.80 | 13.84 | 266.70 | 206.37 | 1560 | 81349 | 15 |
| TXG273.05-11.43 | L21-720 | 273.05 |
250.19 | 11.43 | 290.45 | 238.13 | 1620 | 81349 | 15 |
| TXG273.05-12.57 | L21-730 | 273.05 | 247.91 | 12.57 | 298.45 | 234.95 | 1640 | 88128 | 15 |
| TXG298.44-12.42 | L21-750 | 298.44 | 273.60 | 12.42 | 323.85 | 263.53 | 1800 | 108465 | 10 |
| TXG339.72-13.06 | L21-760 | 339.72 | 313.60 | 13.06 | 365.13 | 301.62 | 2020 | 149140 | 10 |
| TXG406.40-16.66 | L21-770 | 406.40 | 373.08 | 16.66 | 444.50 | 355.60 | 2500 | 254894 | 7.0 |