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Unshakable structural integrity: welded steel frame

Heavy-duty welded steel frame as the core skeleton, to provide unparalleled rigidity and stability of the entire equipment. The manufacturing process of the frame follows strict engineering specifications: first, high-strength low-alloy steel plates are used for precise welding forming; then, the whole frame is subjected to complete stress relief heat treatment.

The heart of the driveline: forged alloy steel for extreme durability

The core components of the driveline-the integral crankshaft, connecting rod and intermediate shaft-are the keys to pump performance and life. We adhere to the highest standards of material and workmanship. These key components are not made by casting but by forging in one piece of high quality heat-treated alloy steel (35CRMO or 40CrMnMo) .

The gear set is of a herringbone gear design that has been integrally hardened. The herringbone design provides greater tooth surface contact area for smoother, quieter power transmission and significantly reduced wear compared to spur gears. This design ensures that the transmission system can withstand millions of stress cycles without early fatigue failure during high-intensity reciprocating motion of 120 cycles per minute.

During the refurbishment of similar pumps, magnetic particle inspection (MPI) of all load path components is standard procedure, further confirming our stringent requirements for material and manufacturing process integrity.

NATL 7500 PSI Fe hydraulic end: controls high pressure environment

Excellent design: two-piece L-modular advantage

The advanced two-piece L-type modular rocket is adopted. Compared to the older monoblock hydraulic end, this design offers overwhelming advantages in terms of maintainability, serviceability, and inherent strength.

Maintainability: in the L-type design, the suction and discharge modules are independent of each other. The suction module usually withstands significant wear and tear and can be replaced independently when needed at a fraction of the cost of replacing the integral hydraulic end.

Applicability: since the modules are separate, replacing the valve and seat becomes faster, safer, and easier because the operating space is no longer limited.

Inherent Strength: compared to some monolithic designs, which are prone to cracking at points of stress concentration, the l-shaped geometry allows for more metallic material to be placed around the internal high-stress areas, providing better support.

Materials Science in extreme environments: forging, heat treatment, and validation

Our hydraulic end modules are based on certified high quality alloy steel forgings, AISI 4130 or equivalent. The entire manufacturing process follows a rigorous quality control system:

Raw Materials: certified high quality alloy steel forgings.

Precision Machining: in the advanced CNC boring machine processing, to ensure the perfect size tolerance and interchangeability between parts.

Heat treatment: complete heat treatment to achieve the best balance between hardness (wear resistance) and toughness (impact/fatigue resistance) .

Non-destructive testing (NDT) : its integrity is verified by rigorous NDT, including ultrasonic inspection of the forging core and magnetic particle or penetrant testing of all surfaces to ensure zero defects leaving the factory.

Critical perishables: configurable systems for maximum uptime

High pressure cylinder liner: the first line of defense against wear

The cylinder liner is the main wear surface inside the hydraulic end. We offer two high-performance options to meet the demands of different operating conditions.

Option One (high performance standard) : high chromium (bimetal) cylinder liner

Construction: bimetal construction with Shell made of high strength forged steel to provide structural integrity and lining made of centrifugally cast high chromium cast iron.

Features: high hardness lining (about Rockwell hardness 60-69hrc) , excellent resistance to abrasive wear and corrosion resistance. The"HP" lip design can effectively prevent the lining from sliding under high pressure.

Performance: as a proven and reliable choice, its service life can exceed 800 hours under typical working conditions.

Option two (ultimate performance) : Zirconia ceramic cylinder liner

Structure: the stabilized zirconia ceramic sleeve is pressed into the forged steel housing through a high-pressure fit.

Features: it is more comprehensive than traditional materials:

Ultimate hardness: Rockwell hardness up to 92-94hrc, providing unparalleled resistance to abrasive wear.

Excellent toughness: unlike the more brittle alumina ceramics, zirconia has high impact strength and crack resistance.

Super smooth surface: after fine honing, the surface finish reaches mirror level 4-8 RMS.

Piston and piston rod: keeps seal under extreme pressure

Materials: the use of proprietary ultra-durable, high-temperature polyurethane composites, up to 300 °F (about 149 °C) temperature stability.

Compatibility: these pistons are carefully designed to maintain seal integrity and resist chemical degradation in all common drilling fluids, including water-based mud WBM, oil-based mud OBM, and synthetic-based mud SBM.

Piston rod: the two-piece piston rod design allows piston replacement without disturbing the cylinder liner seal, which greatly saves time during maintenance. The piston rod itself is forged from high quality alloy steel and is precision machined.

Valves and seats: gateways to hydraulic performance

Our pumps use API # 7 valve assembly, which is standard in this class.

Design: the"Full bore" design offers significant advantages:

Streamlined ribs reduce fluid resistance and turbulence.

The greater contact area between the valve and the seat reduces metal-to-metal wear and prevents erosion.

Construction: one-piece inertia welded body and heavy-duty forged seat designed to provide uniform load on the hydraulic end and reduce stress concentration. This rugged construction is critical to withstand constant, high-speed on-off impact at 7500 PSI.

Performance and technical specifications

Data-driven performance for precision engineering

Table 1: performance data of 12-P-160HP equipped with NATL 7500 PSI hydraulic end

Cylinder liner size, inches (mm)	Maximum discharge pressure † , PSI (kg/CM2)	Pump Speed (SPM)	Flow * * , GPM (LPM)
71⁄4"(184.2)	3,200	120 *	772(2922)
		100	643(2435)
		80	515(1948)
7"(177.8)	3430(241.1)	120 *	720(2724)
		100	600(2270)
		80	480(1816)
63⁄4"(171.5)	3690(259.4)	120 *	2533)
		100	558(2111)
		80	446(1689)
61⁄2"(165.1)	3,980(279.8)	120 *	621(2349)
		100	517(1958)
		80	414(1566)
61⁄4"(158.8)	4305(302.7)	120 *	574(2172)
		100	1810
		80	383(1448)
6"(152.4)	4670(328.3)	120 *	(2002)
		100	1668
		80	353(1334)
53⁄4"(146.1)	5,085	120 *	1840
		100	405(1533)
		80	324(1226)
51⁄2"	5555(390.5)	120 *	1682
		100	370(1401)
		80	296(1121)
5"(127)	6,720(472.4)	120 *	367(1389)
		100	306(1158)
		80	245(927)
41⁄2"	7500(527.2)	120 *	297(1124)
		100	248(938)
		80	198(750)

Note:

* rated maximum input power and speed.

* * data are based on 90% mechanical efficiency and 100% volumetric efficiency.

* * * operating at flow rates in excess of 675 GPM may shorten valve life.

† A 5,000 PSI hydraulic end configuration is also available.

Table 2: General Technical specifications

This table provides rig managers and logistics planners with a quick reference"Specification list" containing all key physical and operational parameters of the pump.

Parameters	Values
Maximum input power	1,600 HP (1,193 kW)
Rated pump speed	120SPM
Stroke length	12in. (304.8 mm)
Gear ratio	3.439:1
Valve box API number	Mod. 7
Suction line interface	10"ASA-150 lb. R.J. Flange
Discharge pipe joint	6"API-10,000 psi R.J. Flange
Total length (skid mounted)	209in. (5309mm)
Total width (through pinion shaft)	1133⁄4 in. (2889mm)
Total height (to top of gearbox)	75in
Approximate weight (excluding pulley)	54,700 lbs (24,810 kg)