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Professional Mud Pump Manufacturer
for Oil Drilling Rigs

Dezhou Rundong Petroleum Machinery Co., Ltd. – Over 20 years of expertise in manufacturing high-performance drilling mud pumps and oilfield components. API & ISO9001 certified quality.

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Rundong Factory

About Rundong

Dezhou Rundong Petroleum Machinery Co., Ltd. is a professional manufacturer of oil drilling equipment and drill rig components with over 20 years of industry experience. We specialize in the design, production, and supply of high-quality mud pumps and related components used in oil and gas drilling operations.

Our core products include triplex and duplex mud pumps, fluid end modules, pump liners, pistons, valves, pulsation dampeners, and a full range of drilling rig components. Our pumps are engineered to serve as direct replacements for major brands such as Gardner Denver, Wheatley, National, Emsco, Ideco, Oilwell, FMC, and OPI.

API & ISO9001 Certified Manufacturing
20+ Years of Industry Expertise
Global Supply to America, Russia, and Beyond

Certifications & Standards

API Certification

ISO 9001 Certified

Quality management systems for consistent product excellence.

API Standards Compliant

Products meet American Petroleum Institute specifications.

Our Product Range

Triplex Mud Pump

Triplex Mud Pump

High-pressure reciprocating pump ideal for oil drilling rigs. Durable construction with API compliance. Available in multiple models for various rig sizes.

  • 3-Piston Design
  • Up to 5,000 PSI
  • Compatible with Gardner Denver
Duplex Mud Pump

Duplex Mud Pump

Double-acting mud pump with robust design for heavy-duty drilling applications. Ideal for workover rigs and deep well drilling.

  • 2-Cylinder Configuration
  • High Flow Rate
  • Low Maintenance Design

Fluid End Module

Complete fluid end assemblies with liners, valves, and pistons. Precision-machined for optimal sealing and long service life.

  • Replace OEM Units
  • Corrosion-Resistant Materials
  • Quick-Change Design

Pump Liner

High-strength alloy steel liners with precision bore. Designed for extended wear resistance and easy replacement.

  • Hard Chrome Plated
  • Multiple Sizes Available
  • API 7K Compliant

Piston Assembly

Complete piston kits with rods, seals, and retainers. Engineered for high-pressure environments and long stroke life.

  • Replace National & Emsco
  • Heat-Treated Steel
  • U-Cup Seals Included

Valve Assembly

High-performance mud pump valves with spring-loaded design. Optimized for fast response and minimal wear.

  • Tungsten Carbide Seats
  • Replace Ideco & Oilwell
  • Anti-Cavitation Design

Pulsation Dampener

Hydraulic accumulator that reduces pressure fluctuations in mud pump systems. Improves drilling efficiency and protects equipment.

  • Nitrogen-Charged Bladder
  • ASME Certified
  • 5,000 PSI Rating

Hammer Union

High-pressure piping connection used in mud systems. Forged steel construction with reliable sealing under extreme conditions.

  • 602 & 603 Models
  • API 6A Compliant
  • Reusable & Durable

Crankshaft

Precision-forged crankshaft for mud pumps. Heat-treated for strength and durability. Dynamic balancing for smooth operation.

  • Alloy Steel Construction
  • Replace FMC & OPI
  • Journal Hardened

Why Choose Rundong?

20+ Years Experience

Trusted by oilfield operators worldwide with decades of engineering and manufacturing excellence.

API & ISO Certified

All products meet international standards for safety, performance, and reliability.

Global Supply

Serving clients in America, Russia, and across the globe with fast, reliable delivery.

Full After-Sales Support

Technical guidance, spare parts, and service support to keep your operations running.

20+
Years in Business
50+
Countries Served
1000+
Products Delivered
99%
Customer Satisfaction

Frequently Asked Questions

What types of mud pumps do you manufacture?

We manufacture both triplex and duplex mud pumps designed for oil drilling and workover rigs. Our pumps are built to API standards and can serve as replacements for major brands like Gardner Denver, Emsco, and Oilwell.

Are your products API certified?

Yes, our manufacturing processes and products comply with API 7K and API 6A standards. We are also ISO9001 certified for quality management systems.

Can you supply replacement parts for other brands?

Absolutely. Our mud pumps and components are engineered to be direct replacements for Gardner Denver, Wheatley, National, Emsco, Ideco, Oilwell, FMC, and OPI equipment.

What is your production capacity?

With advanced manufacturing facilities and experienced personnel, we maintain high production capacity to meet large-scale orders with fast turnaround times.

Contact Us

Get in touch with Rundong for product inquiries, technical support, or custom solutions.

Contact Information

Phone (China): +86-534-2620099

Phone (America): +86-534-2620099

Phone (Russia): +86-534-2620099

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