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Liner Lock for Mud Pumps - High-Quality China Suppliers and Factory Component for Enhanced 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 (Equivalent to AISI 4135 or AISI 4140) |
| Service Life | 5,000 – 10,000 hours or more, 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, 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 us for more details about valves used for HONGHUA, RG, RONGSHENG, EMSCO, and LSNOV pump models.
ℹ️ 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)
❓
What is the working pressure rating of the liner lock?
The liner lock is rated for working pressures of 5,000 PSI (35 MPa) and 7,500 PSI (51.7 MPa), making it suitable for high-pressure drilling mud pump fluid ends used in demanding oilfield operations.
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What material is used to manufacture the liner lock?
The liner lock is forged from 35CrMo alloy steel, which is equivalent to AISI 4135 or AISI 4140. It undergoes precision heat treatment and machining to ensure superior strength, wear resistance, and corrosion protection in harsh drilling environments.
❓
How long is the expected service life of the liner lock?
Under normal 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.
❓
Which mud pump brands and models is the liner lock compatible with?
Our liner lock is compatible with a wide range of major mud pump brands including BOMCO, HONGHUA/HH, EMSCO/Mud King, IDECO, National/LSNOV, as well as RG and RONGSHENG models. Please refer to the OEM Compatible Part Numbers table above or contact our sales team for specific model inquiries.
❓
Is third-party inspection or certification available for the liner lock?
Yes. Third-party witness inspection and certification reports are available from recognized agencies including Bureau Veritas (BV), CCS, ABS, and SJS. Please contact us if you require specific certification documentation for your project.
❓
How easy is it to install or replace the liner lock in the field?
The liner lock features a thread-in design that allows for quick and safe liner insertion or removal without disassembling the entire fluid end. This simple structure significantly reduces downtime and maintenance costs, making it highly practical for field operations.