China API 7K Mud Pump Piston Rod Factories, Products

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China API 7K Mud Pump Piston Rod Factories, Products

MTPMÂ piston rod is one of the most critical components in ourÂ mud pump, responsible for transmitting the reciprocating motion ofÂ 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 highÂ pressure pumping systems, the piston rod mustÂ withstand continuous cyclic stress,ensuresÂ longÂ 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
LSNOV	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.