Ram preventers are designed for wellhead sealing during drilling, lowering and retrieval of tubing and other well completion and workover operations.
Depending on the need and operating conditions, ram preventers can be single or double. This provides a variety of designs and the most rational use of space for operation and maintenance. Preventers are equipped with blind pipe or cutting rams. Preventers are operated both manually and hydraulically.
- Ram operation – hydraulic (manual)
- Meets technical requirements API 16A
- Nominal size, mm (in): 180-430 (7 1/16-16 3/4)
- Work pressure, MPa (PSI): 35-105 (5000-15000)
- Service environment: oil, gas, solution, water
- Work temperature, °С: from -60 to +121
- Material class: АА, ВВ, СС, DD, ЕЕ, FF, НН
Specifications
| № | Type | Nominal size | Work pressure (MPa/PSI) | |||
| mm | in | 35 (5000) | 70 (10000) | 105 (15000) | ||
| 1 | 2SPH 180 | 180 | 7 1/16 | + | + | + |
| 2 | 2SPH 230 | 230 | 9 | + | + | + |
| 3 | 2SPH 280 | 280 | 11 | + | + | + |
| 4 | 2SPH 350 | 350 | 13 5/8 | + | + | + |
| 5 | 2SPH 430 | 430 | 16 3/4 | + | + | – |