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API Heavy Wall Barrel Sucker Rod Pump
API RHA Pump / Precision Insert Type API Rod Pump with Heavy-Wall Barrel
Model NO.: API 11 AX standard
Trademark: Zhongshi
Transport Package: Wood Cases
Specification: API 11AX
Origin: Henan, China
HS Code: 843143100
Model NO.: API 11 AX standard
Trademark: Zhongshi
Transport Package: Wood Cases
Specification: API 11AX
Origin: Henan, China
HS Code: 843143100
The API RHA pump is a precision insert type rod pump designed for high-performance oil extraction operations. It features a heavy-wall barrel and an extended stroke configuration to enhance efficiency and durability. Manufactured using advanced technology and imported equipment from the United States, these pumps are certified with the official API monogram on both the pump and its fittings.
Key Features of the RHA Rod Pump:
- The top anchor (hold-down) prevents sand settling between the pump barrel and tubing, reducing the need for frequent stripping jobs.
- Fluid is discharged just above the hold-down, keeping solids in suspension and improving pumping efficiency.
- The standing valve is submerged in the fluid being pumped, allowing the fluid level to be drawn below the seating nipple.
- The pump barrel can function as a gas anchor in gassy installations, helping to manage gas interference.
Specifications:
| Tubing Size (inches) | 1-1/2 | 2-3/8 | 2-7/8 | 2-7/8 | 3-1/2 |
|----------------------|-------|-------|-------|-------|-------|
| Pump Bore (inches) | 1-1/16 | 1-1/4 | 1-1/2 | 1-3/4 | 2-1/4 |
| Pump Constant | 0.132 | 0.182 | 0.262 | 0.357 | 0.590 |
| Barrel O.D. (inches) | 1.317 | 1.625 | 1.875 | 2.250 | 2.750 |
| Extension O.D. (inches) | - | 1.750 | 2.250 | 2.250 | 2.750 |
| Designation | 15-106-RWA | 20-125-RHA | 25-150-RHA | 25-175-RHA | 30-225-RHA |
Sucker Rod Pumps Specifications:
| Specification | Nominal Bore (In/mm) | Plunger Length (Ft/m) | Ma. O.D. (mm) | Rod In | Tubing In | Stroke (Ft/m) |
|-----------------------------|----------------------|------------------------|----------------|--------|-----------|----------------|
| 20(25)-125RHAC/RHAM | 1.25(32) | 4–6 (1.2–1.8) | 47.5/47.6 | 0.75 | 2 3/8(2 7/8) | 24.61(7.5) |
| 25-150RHAC/RHAM | 1.50(38) | | 59.4/59.5 | | 2 7/8 | |
| 25-175RHAC/RHAM | 1.75(44) | | 59.4/59.5 | | 2 7/8 | |
| 25-200RWAC/RWAM | 2.00(51) | | 59.4/59.5 | | 2 7/8 | |
| 30-225RHAC/RHAM | 2.25(57) | | 72.1/72.2 | | 3 1/2 | |
| 30-250RWAC/RWAM | 2.50(63.5) | | 72.1/72.2 | | 3 1/2 | |
Material and Surface Treatment:
| Parts | Material & Surface Treatment | Special Requirements |
|----------|--------------------------------------------------------------------|----------------------------|
| Barrel | Carbon steel, chrome plate, nickel-phosphorous plate, carbonitriding, carburized | Brass barrel |
| Plunger | Carbon steel, nickel spray, chrome plate | Double chrome plate |
| Ball & Seat | Stainless steel, Tungsten carbide, Titanium carbide | Nickel carbide |
| Cage | Alloy steel | Hard-lined |
These pumps are built to withstand harsh operating conditions and are ideal for use in oil fields where reliability and performance are critical. They are engineered for long service life, minimal maintenance, and efficient fluid handling. Whether you're dealing with high-pressure environments or challenging well conditions, the API RHA pump delivers consistent and dependable performance.