The insert pump can be connected to sucker rod on the surface and then lowered into the wells integrally through the tubing. Pump checks are easy and without the need of pulling and running the tubing. This makes it especially suitable for deep well applications. Reduced running time and make-and-breaks can surely enhance tubing working life. Insert pumps are clarified as mechanical and cup hold-down pumps by hold-down types or as top hold-down, bottom hold-down and traveling barrel insert pumps by hold-down positions.
| Model | Nominal Dia. mm(in) | Plunger Length m(ft) | Stroke m | Pump Constant m3/d | Tubing and Thread | Sucker Rod in |
|---|---|---|---|---|---|---|
| 25-112RHAC/M | 28(1.12) | 0.92 | 2 7/8 NU/EU | 3/4 | ||
| 20-125RHAC/M | 32(1.25) | 1.2–1.8 | ≤7.5 | 1.14 | 2 3/8 | 3/4 |
| 25-150RHAC/M | 38(1.50) | (4–6) | 1.64 | 2 7/8 | 3/4 | |
| 25-175RHAC/M | 44(1.75) | 2.24 | 2 7/8 | 3/4 | ||
| 30-225RHAC/M | 57(2.25) | 3.69 | 3 1/2 | 3/4 | ||
| 20-125RHBC/M | 32(1.25) | 1.14 | 2 3/8 | 3/4 | ||
| 25-150RHBC/M | 38(1.50) | 1.64 | 2 7/8 | 3/4 | ||
| 25-175RHBC/M | 44(1.75) | 2.24 | 2 7/8 | 3/4 | ||
| 30-225RHBC/M | 57(2.25) | 3.69 | 3 1/2 | 3/4 | ||
| 20-125RHTC/M | 32(1.25) | 1.14 | 2 3/8 | 3/4 | ||
| 25-150RHTC/M | 38(1.50) | 1.64 | 2 7/8 | 3/4 | ||
| 25-175RHTC/M | 44(1.75) | 2.24 | 2 7/8 | 3/4 | ||
| 30-225RHTC/M | 57(2.25) | 3.69 | 3 1/2 | 3/4 |