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Professional Mud Pump Parts Manufacturer

High-performance, durable mud pump components engineered for oil & gas drilling. ISO9001 & API-7K certified. Trusted by NOV, Petro China, CNOOC, and global partners.

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About KEHUA

Qingdao Kehua Petroleum Machinery Co., Ltd. is a national high-tech enterprise specializing in oil drilling mud pump accessories. Since 2006, we have focused on producing hydraulic end accessories for mud pumps with over 30 years of industrial expertise.

Our product range includes Double Metallic Liners, Zirconia Ceramic Liners, Pistons, Valves & Seats, Piston Rods, Extension Rods, Crossheads, and more. We serve clients across the United States, Middle East, Russia, Europe, and Southeast Asia.

  • API-7K & ISO9001 Certified
  • In-house Casting, Machining & Heat Treatment
  • OEM/Custom Manufacturing Available
  • 24-Hour Technical Support
Factory Machining Quality Control Products

Our Products

Double Metallic Liner

Double Metallic Liner

High-strength dual-layer construction for extended wear life in high-pressure environments.

  • Material: Alloy Steel + Hardfacing
  • Standards: API-7K
  • Applications: Oil & Gas Drilling
Zirconia Ceramic Liner

Zirconia Ceramic Liner

Ultra-wear-resistant ceramic inner layer for maximum durability and reduced downtime.

  • Material: ZrO₂ Ceramic + Steel
  • Hardness: >1200 HV
  • Service Life: 2x Standard Liners
Piston

Piston

Precision-engineered with reinforced seals for consistent performance under extreme conditions.

  • Material: Forged Alloy Steel
  • Seals: Nitrile / Polyurethane
  • Compatibility: All Major Mud Pumps
Valve & Seat

Valve & Seat

Optimized flow dynamics with hardened alloy construction for reliable sealing.

  • Material: 4140/4340 Steel
  • Hardness: HRC 58-62
  • Design: Anti-Cavitation
Piston Rod

Piston Rod

High-tensile strength rod with chrome plating for corrosion and wear resistance.

  • Material: 42CrMo / 35CrMo
  • Surface: Hard Chrome Plated
  • Tensile: ≥900 MPa
Fluid End

Fluid End

Complete hydraulic end assemblies built for maximum reliability and minimal maintenance.

  • Material: Forged Alloy Steel
  • Testing: 100% Hydrostatic
  • Standards: API 7K
Hydraulic Jack

Hydraulic Jack (70T–1500T)

High-capacity jacks for industrial lifting, pushing, pulling, and pressing operations.

  • Capacity: 70T to 1500T
  • Applications: Oilfield, Construction, Shipbuilding
  • Export: USA, Middle East
Casting Parts

Casting Parts

Custom gray iron and alloy steel castings using centrifugal and shell molding processes.

  • Processes: Centrifugal, Shell Mold
  • Industries: Oil, Mining, Automotive
  • Finishing: CNC Machined to Spec
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Why Choose KEHUA?

Three decades of innovation, quality, and customer trust — backed by advanced manufacturing and global certifications.

Product Advantages

Stable quality and long service life reduce replacement frequency and improve oil recovery efficiency.

24/7 Service Support

Professional technical advice and rapid response mechanism to solve your operational issues.

Integrated Factory

In-house casting, machining, and heat treatment ensure quality control from raw material to delivery.

Cost-Effective Pricing

No outsourcing — we control costs and pass the savings to you without compromising quality.

Quality Inspection System

We maintain a rigorous quality control process to ensure every component meets international standards.

  • Compliant with API-7K and ISO9001
  • 100% Hydrostatic Testing on Fluid Ends
  • Full Traceability from Raw Material

Main Testing Equipment:

Spectrometer Carbon-Sulfur Analyzer Metallographic Microscope Leeb Hardness Tester Tensile Tester 3D Coordinate Measuring
Quality Inspection

Latest News & Insights

Valve & Seat Guide Technical Guide

Mastering Mud Pump Valve & Seat Selection

Learn how to extend service life and prevent premature failure in high-pressure environments.

Read More →
Piston Performance Performance

Optimizing Mud Pump Piston Life

Discover the impact of material selection, seal design, and operating conditions.

Read More →
Liner Efficiency Efficiency

Decoding Liner Size & Performance

How liner diameter and material affect pump efficiency and maintenance cycles.

Read More →

Get in Touch

Contact KEHUA for product inquiries, technical support, or custom manufacturing solutions.

Email

[email protected]

[email protected]

Phone & WhatsApp

+86 156 5169 1303

+86 532 87251977

WhatsApp: +86 132 1011 9847 (Bowen)

Address

No.115, Cangzhou Road, Beiguan Industrial Park,
Jiaozhou City, Shandong Province, China

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