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Corrosion Resistant Structure API 11AX Sucker Rod Pumps
Corrosion Resistant Structure Sucker Rod Pump Description
Corrosion resistant sucker rod pumps are a kind of unique structure oil production pump used in severe corrosive condition oil wells.
Sucker rod pump has RHAC, RHBM, RHBC, RWAM, RWAC, RWBM.
Rod pump should be installed inside the tubing with the sucker rod. It is not necessary to pull the tubing out of the well when checking the pump, which can make the operation easier and quicker.
Technical parameter list:
| RW SERIES MODELS | Pump OD (in) | Barrel length (ft) | Plunger length (ft) | Stroke length (ft) | Extension length (ft) | Tubing EUE(in) |
| 30-250RWAM | Ø63.5 | 2.1-10 | 0.3-8.0 | 1.2-9.0 | / | 3-1/2” |
| 30-250RWBM | ||||||
| 30-250RWAC | Ø63.5 | 3-1/2" | ||||
| 30-250RWBC |
Features
1. Has good corrosion resistance feature
2. Carbon steel pump barrels and pump plungers
3. Heavy wall pumps and thin wall pumps
Materials selection
There is a wide range of plunger (or pump-bore) sizes standardized by the industry. The API pump-bore sizes that are currently available range from 1 1/16 to 3 3/4 in. in diameter. This 1 1/16-in. size has been added back in the latest edition of the standard. Additionally, a new barrel type has been accepted in the latest API Spec. 11AX. This is the "X-type" barrel. It has a thin-walled barrel configuration for threads on either end of the heavy-walled barrel and is available for metal plungers only. This type of pump does not require the extension couplings normally needed for heavy-walled barrel pumps. Thus, this pump reduces the burst or collapse concerns of the thin-walled extension couplings and allows deeper producing depths to be attained.
