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Liner Lock for Mud Pump - Precision Engineered by China Suppliers and Factory for Reliable Performance
Product Specifications
| Application | Drilling mud pump fluid end |
| Working Pressures | 5000 PSI (35 MPa) | 7500 PSI (51.7 MPa) |
| Temperature Rating | -20°C to 120°C |
| Material | 35CrMo AISI 4135AISI 4140 |
| Service Life | 5,000 – 10,000+ hours, depending on operating 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 Inspection | Bureau Veritas (BV), CCS, ABS, SJS — inspection reports available |
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 — metal-to-metal locking 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 — allows 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 |
Contact for more details about the valves used for HONGHUA, RG, RONGSHENG, EMSCO, and 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 environments?
The liner lock is forged from 35CrMo alloy steel (equivalent to AISI 4135 / AISI 4140), which is precision heat-treated and machined. This material offers exceptional strength, wear resistance, and corrosion protection, making it ideal for the abrasive and high-pressure conditions found in drilling mud environments.
Q
What is the expected service life of the liner lock?
Under standard operating conditions, the liner lock provides a service life of 5,000 to 10,000+ hours. With proper maintenance and regular liner replacements, the liner lock thread body can last up to 15,000 hours.
Q
Which mud pump brands and models is this liner lock compatible with?
The liner lock is compatible with a wide range of pump brands including BOMCO (F1300, F1600, F1600L, F1600HL, F2200HL), HONGHUA/HH, EMSCO/Mud King, IDECO (T500–T1600), and National/LSNOV (7P50 through 12P160, including L-shaped models). Please contact our sales team for additional compatibility information.
Q
What working pressures 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 majority of onshore and offshore drilling applications.
Q
Can the liner be replaced without disassembling the entire fluid end?
Yes. The thread-in design of the liner lock allows for quick liner insertion or removal without disassembling the entire fluid end. This simple structure significantly reduces downtime and improves overall operational efficiency on the rig.
Q
Are third-party inspection reports available for this product?
Yes. Third-party witness and inspection reports are available from internationally recognized certification bodies including Bureau Veritas (BV), CCS, ABS, and SJS. Please contact our team to request the relevant documentation for your project requirements.