OMEGA D-750-L Mud Pump

 

Power End: Based on a steel frame that relieves stress after welding, providing unparalleled structural integrity.

Drive system: using forged alloy steel crankshaft and AGMA standard gears to achieve smooth and reliable power transmission.

Hydraulic end: high strength forged alloy steel and advanced process to withstand extreme operating pressure.

Consumables system: provides a range of premium consumable options designed to maximize life and minimize total cost of ownership (TCO) .

 

 

Power Racks: welded for durability and stress relief for stability

The power-end core of the Omega D-750-L is a frame made of welded high-strength low-alloy steel. Compared with the traditional casting frame, the welded structure has superior material properties and design flexibility. More importantly, our frame after welding forming, will go through strict stress relief heat treatment process.

Drive Train: forged for trouble-free power transmission

Crankshaft: the core component is an integral forged alloy steel crankshaft. We choose 4340 or 35CrMo high performance alloy steel, to ensure its excellent toughness and wear resistance.

Gear: pump with * * double helical gear (herringbone gear) * * design. Compared with spur gears, herringbone gears can transmit higher torque, operate more smoothly and have lower noise due to their larger tooth surface contact ratio.

AGMA standard compliance: all gears are manufactured to meet or exceed * * American gear manufacturers association -AGMAAGMA) * * standards.

Bearings and lubrication: designed for extended service life

Bearing system: D-750-L power end with full roller bearing construction, including straight roller bearings for main bearings and spherical roller bearings for pinion shafts.

Lubrication system: the pump uses a combination of forced and splash lubrication.

Crosshead Guide: Replaceable Bronze Guide. As an excellent wear-resistant and antifriction material, bronze can effectively reduce the friction and heat of the crosshead during movement, and further prolong the service life of the power end.

 

 

Integral hydraulic end design

Key Features: The D-750-L features a Monoblock hydraulic design, is machined from a single high-strength alloy steel forging, and is subjected to rigorous heat treatment and ultrasonic testing.

Material Science: we choose 4135,35CRMO or 40CrMnMo high quality alloy steel as the raw material of the hydraulic end. These materials are widely used in the manufacture of high pressure vessels due to their excellent tensile strength, toughness and hardenability, and are ideal for high pressure operations.

Manufacturing process advantages: compared with castings, forging process can refine the internal grain structure of steel, eliminate internal defects such as porosity and porosity, thus giving excellent strength and fatigue resistance to the hydraulic end. The subsequent heat treatment process further optimizes the comprehensive mechanical properties of the material, ensuring an ultra-long service life for the hydraulic end.

API compliant valve system

Pumps are supplied with API-6 stem guided valves and hardened steel seats. This standardized design not only ensures reliable sealing performance, but also provides great convenience for worldwide maintenance and spare parts procurement. The cover is rugged and easy to maintain for quick disassembly and assembly, minimizing downtime for replacement of valves and seats.

 

 

Advanced cylinder LINER technology: provide the best choice for different working conditions

Table 1: Omega D-750-L liner materials comparison

 

Characteristics	High chromium bimetallic cylinder liner	Zirconia ceramic cylinder liner
Lining material	High chromium cast iron (CR > 27%)	Zirconia (ZRO2)
Shell material	Wrought alloy steel	Wrought alloy steel
Inner wall hardness (HRC)	62-69	90 +
Typical service life (hours)	800 +	4,000 +
Core Strengths	Cost-effective and balanced performance	Extreme wear resistance, ultra-long life
Ideal applications	Standard and moderately abrasive drilling fluids	High abrasiveness, high solid content drilling fluids, and critical operations requiring very long operation cycles

Durable Pistons and valves

Valve Assembly: body and seat forged from high quality alloy steel (e.g. 20CrNiMo/AISI 8620) . Through carburizing and quenching heat treatment process, a deep hardened layer (hardness HRC ≥60) is formed on the surface, while maintaining good toughness in the core. The structure of outer hard and inner tough makes it effectively resist the erosion and wear of high pressure mud.

Piston: a wide range of piston material options, including high quality polyurethane, are available to match the customer's choice of cylinder liner type and drilling fluid chemistry for optimal sealing and maximum service life.

Integrated support system

Cylinder liner spray system: a set of efficient cylinder liner spray cooling is the key to extend the life of wearing parts. The system continuously sprays the clean coolant on the reciprocating contact surface between the piston and the cylinder liner through an independent spray pump, which plays a triple role of cooling, lubricating and washing away abrasive particles, thus effectively prevent the cylinder liner and piston overheating, significantly extend its service life.

 

 

The following data provide engineers and purchasing managers with key information needed for planning and comparison.

Table 2: Omega D-750-L performance data

Calculation based on 90% mechanical efficiency and 100% volumetric efficiency.

Piston diameter (in.)	Displacement per revolution (gallons per revolution)	Pump Speed (RPM)					Maximum pressure (PSIG)	Input brake horsepower
		60	80	100	120	140 *
		Traffic (GPM)	Traffic (GPM)	Traffic (GPM)	Traffic (GPM)	Traffic (GPM)
7.0	4.24	254	5000	339	5000	424	5000	509
6.5	3.66	220	5000	293	5000	366	5000	439
6.0	3.12	187	5000	250	5000	312	5000	374
5.5	2.62	157	5000	210	5000	262	5000	314
5.0	2.16	130	5000	173	5000	216	5000	259
4.5	1.75	105	5000	140	5000	175	5000	210
Pinion speed		297	396	495	594	693
Source:
: : intermittent work only

Table 3: Omega D-750-L key technical specifications

 

Parameters	Specifications
Type of pump	Horizontal triplex single-acting piston pump
Maximum input power	750hp (continuous)
Stroke length	8 inches
Maximum load of connecting rod	85,000 lbs
Gear reduction ratio	4.95:1
Gear type	Double helical gear (herringbone)
Power side rack	Welding high strength steel, stress relief treatment
Crankshaft	One-piece forged alloy steel
Hydraulic end	Monolithic forged alloy steel, heat treated and ultrasonic inspection
Valves and seats	API-6 stem-guided
Outlet flange	4"API 5000RJ
Entry Flange	6"ANSI 150RF
Approximate weight	11,500 pounds
Source:

 

 

Choosing Omega D-750-L means that you have chosen a mud pump that is designed with full life value at its core. The advantages can be summarized as follows:

Incomparable durability: the core components of the power end and the hydraulic end are forged and welded, which fundamentally improves the ability to resist fatigue and impact.

Excellent reliability: thanks to stress relief, autofrettage and other advanced manufacturing processes, as well as strict compliance with international standards such as API and AGMA, effectively prevent the early failure of key components.

Optimized operating costs: from cost-effective high-chromium cylinder liners to ultra-long-life zirconia ceramic cylinder liners, enabling customers to tailor optimal maintenance strategies to specific operating conditions, resulting in significantly lower total cost of ownership (TCO) .

Simplified Maintenance Process: using API standardized design to ensure the versatility and availability of spare parts, simplified on-site maintenance work.

Omega D-750-L mud pumps may not be the lowest-cost option for initial procurement, but their longer mean time to failure, less downtime maintenance, and more durable components, together with their lower cost, provide a significant benefit to the industry, making it the most cost-effective investment over the life of a drilling project.

We invite you to contact the Omega sales engineering team to discuss in depth your specific application needs. We will provide you with a detailed configuration plan, a complete list of spare parts and competitive quotations to help your drilling business to a new height.

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