NOV C-250 Three-cylinder Mud Pump Core Advantages
Overview of technical specifications
|
parameter |
specifications |
|
Pump type |
three cylinder single action piston pump |
|
power rating |
250 HP (186 kW) |
|
maximum velocity |
150 SPM |
|
stroke length |
8" (203.2 mm) |
|
Common cylinder and liner dimensions |
3½" - 5" (88.9 mm - 127 mm) |
|
maximum working pressure |
Up to 3,890 PSI (26.8 MPa), depending on cylinder liner size |
|
gear ratio |
4.68:1 |
|
inlet and outlet flange |
Configure according to pressure level |
|
Pump weight (approx.) |
11,500 lbs (5,216 kg) |
|
Dimensions (length x width x height) |
110" x 60" x 55" (2.8m x 1.5m x 1.4m) |
Reference performance parameters (based on 100% volumetric efficiency and 90% mechanical efficiency)
|
cylinder liner size (in) |
Maximum pressure (psi) |
Flow rate at 150 SPM (gpm) |
|
5" |
1,400 |
306 |
|
4 ½" |
1,730 |
248 |
|
4" |
2,190 |
196 |
|
3 ½" |
2,860 |
150 |
High-quality accessories: guarantee of material and craft
High-quality accessories: the combination of excellent materials and precision technology
Choosing OEM parts from the original manufacturer is a smart move to ensure your C-250 slurry pump operates at peak performance with minimal costs.
Cylinder liners:
Material: Crafted from high-chromium bimetallic alloy, the inner sleeve achieves hardness exceeding HRC62, delivering exceptional wear and corrosion resistance. The outer shell is made of premium forged steel, combining outstanding strength with remarkable toughness.
Technology: The inner and outer layers are tightly combined by advanced centrifugal casting technology. The inner hole is precision honed and the surface is smooth, which can effectively reduce the wear of the piston and prolong the service life.
Piston Assemblies:
Material: The piston core is made of high-strength forged alloy steel (e.g., 42CrMo) to ensure deformation resistance under high pressure. The piston rubber is crafted from a special polyurethane material that is both wear-resistant and oil-resistant, bonded to the piston core through an integrated vulcanization process.
Design: The optimized lip design ensures reliable sealing under various pressures.
Piston rods & pony rods (Piston Rods & Pony Rods):
Material: SAE 4140 high strength alloy steel, with overall tempering heat treatment.
Process: The surface is precision-milled and hard chrome-plated, ensuring smoothness and wear resistance. This significantly extends the service life of the packing seal and reduces leakage risks.
Valve Assemblies (API #4 / API #5):
Material: Both the valve body and valve seat are made of high-quality forged alloy steel (e.g., AISI 8620 / 20CrNiMo).
Process: Through rigorous carburizing and quenching heat treatment, the working surface achieves a hardness of HRC≥60 while maintaining core toughness to withstand high-frequency impact loads. The valve insert is made of high-performance polyurethane material, ensuring rapid return and reliable sealing.
Typical application areas
The NOV C-250 mud pump is the ideal power equipment for the following operations:
- Small and medium-sized land-based drilling rigs
- Well maintenance operations and major repairs
- Coalbed methane and geothermal well drilling
- Well and exploration drilling
- Fluid Transportation in Industrial Field
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