Description

Mud Pump Piston

API 7K Mud Pump Piston Assembly Manufacturer

Shandong Hydril manufactures high-quality mud pump piston assemblies for oilfield drilling operations, workover rigs, and well servicing applications.

Our mud pump pistons are designed as direct replacement parts for major international mud pump brands, providing excellent sealing performance, wear resistance, and long service life under high-pressure drilling conditions.

We supply complete piston assemblies including:

• Piston Hub
• Piston Rubber / Piston Cup
• Press Plate
• Snap Ring
• Retainer Components

Customized piston assemblies can also be manufactured according to customer drawings, OEM part numbers, and drilling requirements.

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Product Features

High Wear Resistance

Mud pump pistons operate continuously inside the liner under high pressure and abrasive drilling fluid conditions.

Our piston assemblies are manufactured using:

• Forged alloy steel piston hub
• Premium polyurethane piston cup
• NBR rubber sealing elements
• Heat-treated components

The piston design provides:

✔ Excellent wear resistance
✔ Stable sealing performance
✔ High pressure capability
✔ Longer service life

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Technical Specifications

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Mud Pump Piston Types

Bonded Piston

The piston cup is permanently bonded to the piston hub through vulcanization technology.

Advantages:

• Excellent sealing performance
• Reduced installation time
• Suitable for demanding drilling conditions

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Replaceable Piston

The piston cup can be replaced separately from the piston hub.

Advantages:

• Lower maintenance cost
• Easy replacement
• Reduced downtime

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Materials

Piston Hub

Available materials:

• 45# forged steel
• 40Cr alloy steel
• 42CrMo alloy steel

Features:

• High tensile strength
• Good fatigue resistance
• Excellent impact resistance

Piston Cup

Available materials:

Polyurethane (PU)

Recommended for:

• High-pressure drilling
• Abrasive mud applications
• Long service life requirements

NBR Rubber

Recommended for:

• General drilling applications
• Cost-effective replacement solutions

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Compatible Mud Pump Brands

Shandong Hydril piston assemblies are interchangeable with:

NOV / National

• 7-P-50
• 8-P-80
• 9-P-100
• 10-P-130
• 12-P-160
• 14-P-220

BOMCO

• F-500
• F-800
• F-1000
• F-1300
• F-1600
• F-1600HL

Honghua

• HHF-500
• HHF-800
• HHF-1000
• HHF-1300
• HHF-1600
• HHF-2200HL

EMSCO

• F-350
• F-500
• F-800
• F-1000
• FB-1300
• FB-1600

Gardner Denver

• PZ-7
• PZ-8
• PZ-9
• PZ-10
• PZ-11

Other Brands

• Oilwell
• Ideco
• Drillmec
• Weatherford
• TSC
• Wirth
• Rongsheng
• LS National

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Manufacturing Process

Our mud pump piston production includes:

1. Forging

Premium alloy steel forging improves mechanical strength.

2. Heat Treatment

Controlled heat treatment enhances hardness and fatigue resistance.

3. CNC Machining

Precision machining ensures accurate dimensions and perfect fitting.

4. Surface Treatment

Anti-corrosion surface treatment improves service life.

5. Quality Inspection

Each piston assembly is inspected before shipment:

• Dimension inspection
• Hardness testing
• Material verification
• Assembly inspection

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Applications

Mud pump piston assemblies are widely used in:

• Oil & gas drilling rigs
• Land drilling systems
• Offshore drilling equipment
• Workover rigs
• Well service pumps
• Horizontal drilling operations

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Why Choose Shandong Hydril Mud Pump Pistons?

✔ Direct replacement for major brands
✔ API 7K standard manufacturing capability
✔ Forged alloy steel piston hub
✔ High-quality polyurethane sealing system
✔ Competitive China factory pricing
✔ OEM drawings and customization available
✔ Export experience worldwide

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Request a Quote

Please provide:

• Mud pump model
• OEM part number
• Piston size
• Quantity required
• Drawing or sample (if available)

Our engineering team will recommend the correct piston assembly for your drilling equipment.