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China Liner Lock for Mud Pump | Top Suppliers & Factory-Engineered Precision Components
Product Specifications
| Application | Drilling mud pump fluid end |
| Working pressures | 5000 PSI (35MPa), 7500 PSI (51.7MPa) |
| Temperature rating | -20°C to 120°C |
| Material | 35CrMo (Equivalent to AISI 4135 or AISI 4140) |
| Service life | 5,000 hours ~ 10,000 hours or more, depending on the operating conditions and drilling conditions |
| Extended Life | With proper maintenance and regular liner replacements, the liner lock thread body can last up to 15,000 hours |
| Third party witness and inspection report available | Bureau Veritas (BV), CCS, ABS, SJS etc. |
Product Features
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Forged 35CrMo alloy steel construction, precision heat‑treated and machined to deliver exceptional strength, wear resistance, and corrosion protection, ideal for harsh drilling mud environments.
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Reliable liner retention under cyclic pressure, with metal‑to‑metal locking that secures the liner in the fluid cylinder, preventing movement or vibration even under high‑frequency piston strokes.
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Quick and safe maintenance — thread‑in installation enables easy liner insertion or removal; compatible with all major Chinese mud pump models (BOMCO, LSNOV, HONGHUA/RG/RONGSHENG) and overseas pumps.
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Simple structure for easy installation and maintenance, allowing for quick liner replacement without disassembling the entire fluid end, reducing downtime and improving operational efficiency.
OEM Equivalent / Compatible Product Part Numbers
Our valve body is manufactured in full accordance with original drawings and are directly interchangeable with the following part numbers:
| OEM Brand | Pump Models | Compatible Part Numbers |
| BOMCO | F1300 / F1600 / F1600L / F1600HL | AH36001-05.18.00 AH130101051500 |
| F2200HL | AH220201051200 | |
| HONGHUA / HH | F1300 / F1600 / F1600L / F1600HL | GH3161-05.17.00 |
| EMSCO / Mud King | FB1300 / FB1600 | 6316-0367-00 |
| IDECO | T500 / T800 / T1000 | 551-405-05 |
| T1300 / T1600 | 551-105-03 | |
| National / LSNOV | 7P50 | 1294165 |
| 8P80 | 1291165 | |
| 9P100 | 1293165 | |
| 10P130 | 1290165 | |
| 12P160 | 1292165 | |
| 10P130 L shaped | 6495 + 6595 | |
| 12P160 L shaped | 6476 + 6576 |
Note
Contact for more details about the valves which used for HONGHUA, RG, RONGSHENG, EMSCO, LSNOV.
All product names, trademarks, and part numbers are used for identification purposes only and are the property of their respective owners. We are an authorized and recognized supplier. If you are looking for specific mud pump component part numbers, please contact our sales team for detailed references or technical support.
Product Details
Frequently Asked Questions (FAQ)
Q
What material is the liner lock made from, and why is it suitable for drilling applications?
The liner lock is forged from 35CrMo alloy steel (equivalent to AISI 4135 or AISI 4140), which undergoes precision heat treatment and machining. This material provides exceptional strength, wear resistance, and corrosion protection, making it highly suitable for the harsh, abrasive environments found in drilling mud pump operations.
Q
What is the expected service life of the liner lock?
Under normal operating conditions, the liner lock delivers a service life of 5,000 to 10,000 hours or more. With proper maintenance and regular liner replacements, the liner lock thread body can last up to 15,000 hours, significantly reducing total cost of ownership.
Q
Which mud pump brands and models is this liner lock compatible with?
This liner lock is compatible with a wide range of major pump brands and models, including BOMCO (F1300, F1600, F1600L, F1600HL, F2200HL), HONGHUA/HH, EMSCO/Mud King (FB1300, FB1600), IDECO (T500–T1600), and National/LSNOV (7P50 through 12P160, including L-shaped variants). Please contact our sales team for additional compatibility information.
Q
What working pressure and temperature ranges does the liner lock support?
The liner lock supports working pressures of 5,000 PSI (35 MPa) and 7,500 PSI (51.7 MPa), with a temperature rating ranging from -20°C to 120°C, covering the full spectrum of standard and demanding drilling environments.
Q
How does the liner lock simplify maintenance and reduce downtime?
The thread-in installation design allows for quick and easy liner insertion or removal without the need to disassemble the entire fluid end. This simple structure significantly reduces maintenance time, lowers downtime, and improves overall operational efficiency on the rig.
Q
Are third-party inspection reports available for this liner lock?
Yes. Third-party witness and inspection reports are available from internationally recognized certification bodies including Bureau Veritas (BV), CCS, ABS, and SJS, ensuring full traceability and quality assurance for your procurement requirements.