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China API 7K Mud Pump Piston Rod Factories, Products
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China API 7K Mud Pump Piston Rod Factories, Products

China API 7K Mud Pump Piston Rod Factories, Products

MTPM piston rod is one of the most critical components in our mud pump, responsible for transmitting the reciprocating motion of the crosshead to the piston assembly. It operates under high loads and in harsh drilling conditions, requiring precise dimensional accuracy, excellent surface hardness, and consistent mechanical strength. As a direct replacement part in high pressure pumping systems, the piston rod must withstand continuous cyclic stress,ensures long term reliability to minimize downtime on drilling rigs.

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Product Description

📋 Product Specifications
Application Drilling mud pump fluid end
Working Pressures 5000 PSI (35MPa), 7500 PSI (51.7MPa)
Temperature Rating -29°C to 120°C
Material 42CrMo (equivalent to AISI 4140)
Service Life 150 hours ~ 350 hours or more, depending on insert materials and drilling conditions
Standard Conforms to API 7K standards
Applicable Fluids Designed to operate for approximately 12,000~18,000 hours, equivalent to 2~3 years under typical drilling conditions, aligned with the replacement cycle of the piston assembly.
Third Party Inspection Bureau Veritas (BV), CCS, ABS, SJS etc. available
✔ Product Features
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Piston rods are produced strictly under API 7K certification, covering raw material selection, machining, heat treatment, and final inspection.
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Guaranteed dimensional interchangeability and mechanical performance equivalent to OEM components.
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Qualified supplier for major pump models, ensuring reliability in demanding drilling environments.
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Manufacturing coverage for nearly all main mud pump models, both domestic and international.
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Engineered for use across a full range of mud pump models applied in oil and gas drilling operations worldwide.
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Fully interchangeable with OEM parts for seamless integration into pumps from BOMCO, LS, Honghua, and other leading manufacturers.
🔄 OEM Equivalent / Compatible Product Part Numbers

Valve bodies are manufactured in full accordance with original drawings and are directly interchangeable with the following part numbers:

OEM Brand Pump Models Metric Part Numbers Imperial Part Numbers
BOMCO F350 - AH44002-05.03
F500 AH35001-05.18A / AH0501010512 AH35003-05.06 / AH0501020504
F800 AH34001-05.02A / AH0801010502 AH33001-05.21 / AH1001020502
F1000 AH33001-05.21A / AH1001010516 AH33001-05.21 / AH1001020502
F1300/F1600 AH36001-05.19A / AH1301010516 AH36002-05.05 / AH1301020504
F1600L/F1600HL AH130101-0516 -
F2200HL AH2202010507 -
RONGSHENG F1000 RS1036-05-017 -
EMSCO FB1300/FB1600 - 6316-0094-00
HONGHUA F1300/F1600 GH3161-05.18 -
LS 3NB1300C/1600C 107.11.110.39 -
LSNOV 10P130 - 1290347
12P160 - 1292147

* All product names, trademarks, and part numbers are used for identification purposes only and are the property of their respective owners.

❓ Frequently Asked Questions
What quality standards do your piston rods meet?
All piston rods are manufactured strictly in accordance with API 7K standards, ensuring high performance and safety in oilfield operations.
Are these piston rods interchangeable with OEM parts?
Yes, our products are designed to be 100% dimensionally interchangeable with original factory components from brands like BOMCO, EMSCO, and Honghua.
What materials are used in the manufacturing process?
We use high-grade 42CrMo alloy steel, which is equivalent to AISI 4140, providing excellent mechanical strength and durability.
What is the typical service life of the piston rod?
The service life generally ranges from 150 to 350 hours for the rod itself, while the overall design aligns with a 2-3 year replacement cycle under standard drilling conditions.
Can you provide third-party inspection reports?
Yes, we can provide witness and inspection reports from recognized authorities such as Bureau Veritas (BV), CCS, ABS, and SGS upon request.
Which mud pump models are compatible with your rods?
Our rods cover a wide range of models including F-series (F500 to F2200), 3NB series, and P-series pumps from major global manufacturers.

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