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China Liner Lock for Mud Pump - High-Quality Suppliers and Factory Direct Options
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 (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 Inspection | Bureau Veritas (BV), CCS, ABS, SJS etc. |
Product Features
- 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.
- 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.
- 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.
- 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 |
📌Contact for more details about the valves which are 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 of, and why is it suitable for drilling applications?
The liner lock is forged from 35CrMo alloy steel, which is equivalent to AISI 4135 or AISI 4140. This material undergoes precision heat treatment and machining to deliver exceptional strength, wear resistance, and corrosion protection — making it ideal for harsh drilling mud environments with high cyclic pressure and abrasive media.
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 or more. With proper maintenance and regular liner replacements, the liner lock thread body can be extended to 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?
The liner lock is compatible with a wide range of mud pump brands and models, including BOMCO (F1300, F1600, F1600L, F1600HL, F2200HL), HONGHUA/HH, EMSCO/Mud King (FB1300, FB1600), IDECO (T500, T800, T1000, T1300, T1600), and National/LSNOV (7P50, 8P80, 9P100, 10P130, 12P160, and L-shaped variants). Please contact our sales team for additional models including RG and RONGSHENG.
Q
What working pressure and temperature range does the liner lock support?
The liner lock is rated for working pressures of 5,000 PSI (35 MPa) and 7,500 PSI (51.7 MPa), and is designed to operate reliably across a temperature range of -20°C to 120°C, covering most onshore and offshore drilling conditions.
Q
How does the liner lock simplify maintenance and reduce downtime?
The thread-in design allows for quick and safe liner insertion or removal without disassembling the entire fluid end. Its metal-to-metal locking mechanism ensures secure liner retention during high-frequency piston strokes, while the simple structure enables field technicians to perform liner replacements efficiently, minimizing rig downtime.
Q
Is third-party inspection or certification available for this product?
Yes. Third-party witness inspection reports are available from recognized international certification bodies including Bureau Veritas (BV), CCS, ABS, and SJS. These certifications provide assurance of product quality and compliance with industry standards for critical drilling equipment.