Description
Optimize your drilling fluid end efficiency with RIGRS’s industry-standard Bi-Metal Mud Pump Liners. Certified to API 7K standards, our bi-metal liners offer a combines of an ultra-tough, high-pressure forged steel outer shell and a highly wear-resistant, anti-corrosive high-chromium cast iron inner sleeve.
With an internal bore hardness reaching HRC 62+, RIGRS bi-metal liners deliver an Extended service life of 1,000 to 1,500+ hours under typical abrasive drilling conditions, making them the most cost-effective solution for everyday deep-well drilling operations.
Premium Replacement Bi-Metal Liners for F-Series, National, Gardner Denver and Other Triplex Mud Pumps
Whether you need a single replacement liner, a complete liner assembly, or bulk spare parts inventory for multiple drilling rigs, RIGRS can provide compatible solutions according to your pump model and operating conditions.
Email: info@rigrs.com
Phone/WhatsApp: +86 18615995257
RIGRS Bi-Metal Mud Pump Liner Advantages
Our bi-metal liners are engineered using a specialized dual-material structural design to maximize mechanical properties:
High-Quality Forged Steel Outer Hull (ZG45 / ASTM A1045)
The outer sleeve is manufactured using high-tensile carbon steel (ZG45/ASTM A1045) via precision hot-forging. With a tensile strength exceeding 90,000 psi, this heavy-duty steel shell easily absorbs structural high pressures and shock loads, protecting the inner sleeve from cracking or warping.
Centrifugally Cast High-Chrome Inner Sleeve (26-28% Cr)
The inner core is centrifugally cast with premium high-chromium alloy (Cr26%-Cr28%). This process eliminates any trace of internal air pockets or micro-impurities:
Optimal Metallurgy: The carbon and chromium are precisely balanced to form dense, wear-resistant chromium carbides ($Cr_7C_3$).
Thermal Treatment: Post-centrifugal casting, the inner sleeve undergoes vacuum heat-treating, oil-quenching, and tempering to achieve a uniform hardness of HRC 62 to HRC 65 through the entire depth of the wear zone.
Machined Smoothness: Precision-honed to a mirror surface roughness of Ra ≤ 0.2 μm, which significantly reduces frictional heat and prolongs piston seal life.
High-Chromium Wear Resistant Bore
The centrifugally cast inner sleeve provides excellent resistance to abrasive drilling solids and mud additives.
Benefits include:Reduced washout,Stable bore geometry,Longer operating intervals,Consistent piston sealing.
Uniform Hardness Distribution
Advanced centrifugal casting technology helps achieve:Dense alloy structure,Consistent hardness,Improved wear characteristics,Reliable field performance.
Excellent Impact Resistance
Unlike ceramic liners, bi-metal liners are more tolerant of:Mechanical shock,Improper handling,Accidental impacts during installation,Transportation vibration.This makes them particularly suitable for rugged field operations.
Drilling Liners Performance Comparison
To help your procurement team weigh the ROI for different drilling environments, here is a direct comparison of our primary cylinder liner offerings:
| Property / Spec | Economy Hardened Steel Liner | Premium Bi-Metal Liner | Ultimate Zirconia Ceramic Liner |
| Material Construction | Single carbon steel (Carburized) | Forged Steel Shell + High-Chrome Core | Forged Steel Shell + ZrO2 Ceramic Core |
| Bore Hardness | HRC 55–58 | HRC 62–65 | HRC 89–94 |
| Avg. Service Life | 300–500 hours | 1,000–1,500+ hours | 4,000–10,000 hours |
| Max Mud Pressure | 3,000 psi | 5,000 psi | 7,500+ psi |
| Corrosive Fluid Resistance | Poor | Moderate-High | Outstanding |
| Ideal Mud Types | Fresh water base mud | Water-base, Oil-base, Salt-water muds | Corrosive, High-solids, HPHT slurries |
| Initial Upfront Cost | Low | Balanced (Balanced Cost and Performance) | High |
Bi-Metal Mud Pump Liner Part Number Database
RIGRS bi-metal liners are 100% interchangeable with original equipment manufacturer (OEM) mud pump brands. Reference our standard part sizing below for fast procurement and sourcing:
EMSCO / BOMCO / Honghua F-Series Compatibility
Fits Models: F-500, F-800, F-1000, FB-1300, FB-1600, FC-1600, FD-1600, GD-F2200
Common Part Numbers:
F-500: 05479450
F-800 / F-1000: 05495500
FB-1300 / FB-1600: 05499550
National Oilwell Varco (NOV) 12-P-160 & 14-P-220 Compatibility
Fits Models: 7-P-50, 8-P-80, 9-P-100, 10-P-130, 12-P-160, 14-P-220
Common Part Numbers:
12-P-160: 05466500 (5″)
14-P-220: 6439-50 (5″
Gardner Denver PZ-Series Compatibility
Fits Models: PZ-7, PZ-8, PZ-9, PZ-10, PZ-11
Common Part Numbers:
PZ-8 / PZ-9: 6413-50 (5″)
PZ-10 / PZ-11: 6414-55 (5.5″)
Bimetal Mud Pump Liner Common Causes of Liner Wear
Abrasive Solids:Excessive sand and drilled solids can accelerate bore wear.
Recommendation.Maintain efficient solids control equipment and monitor mud properties.
Piston Misalignment:Misalignment can cause uneven liner wear.
Recommendation.Inspect piston rods and crosshead alignment regularly.
Cooling System Issues:Insufficient cooling water may increase piston and liner wear.
Recommendation.Ensure continuous cooling water flow during operation.
Damaged Packing:Worn packing can lead to washout between the liner and fluid end housing.
Recommendation.Replace liner packing whenever liners are changed.
RIGRS Bi-Metal Mud Pump Liner(FAQ)
Q1: Can you manufacture custom size liners based on technical drawings?
A: Yes. Our machine shop is equipped with CNC machining centers, horizontal boring mills, and automated honing equipment. We regularly manufacture non-standard mud pump liners, washpipes, and wear plates. Send your PDF or DWG drawings to our sales department for an engineering evaluation and price quote.
Q2: Do you offer third-party inspections?
A: Yes. We accept and welcome inspections by internationally recognized third-party agencies, including SGS, BV, Lloyd’s Register, or DNV, to verify dimensions, hardness, and material certification before the goods leave our factory.
Q3: How long does a bi-metal mud pump liner last?
A: The service life depends on mud properties, pump speed, pressure, cooling performance, solids content, and maintenance practices.
Actual liner life varies significantly between drilling projects.
Q4: Can bi-metal liners replace ceramic liners?
A: Yes. Many drilling contractors select bi-metal liners when looking for a balance between operating cost, wear resistance, and spare parts inventory investment.
Q5: Can you supply F1600 bi-metal liners?
A: Yes. RIGRS supplies F1600 bi-metal liners compatible with many F-Series mud pumps, including BOMCO F1600, EMSCO FB-1600, Honghua F1600, and other equivalent models. Available liner sizes typically range from 4″ to 7″. Please provide the pump model and liner size for confirmation.
Q6: Can your triplex mud pump liners replace original OEM liners?
A: Yes. Our triplex mud pump liners are manufactured according to OEM dimensions and can directly replace liners used in EMSCO, BOMCO, Honghua, National, Gardner Denver, Ideco, and other triplex mud pumps. Final compatibility should be confirmed by liner size and part number.
Q7: What is the difference between a high chrome mud pump liner and a standard liner?
A: High chrome mud pump liners use a centrifugally cast high-chromium iron sleeve with excellent wear resistance. Compared with ordinary hardened steel liners, high chrome liners provide longer service life, better abrasion resistance, and improved performance in high-solids drilling mud.
Q8: Do you offer complete mud pump liner assemblies?
A: Yes. We can supply complete mud pump liner assemblies, including the liner body, liner packing, seals, and related components according to project requirements. Complete assemblies can reduce installation time and simplify maintenance planning.
Q9: Do you keep bi-metal mud pump liners in stock?
A: Common sizes for F500, F800, F1000, F1300, and F1600 mud pumps are often available or can be produced quickly. Please contact us with the required liner size and quantity for current availability and lead time.
Contact RIGRS for a Factory-Direct Price Quote
Are you looking to lower your oilfield expendables budget without sacrificing wear life? Our engineering team will help identify the correct replacement liner and provide a competitive quotation for your drilling project.Contact our sales team today to request a current price list, verify stock availability, or submit your RFQ.
Email: info@rigrs.com
Phone/WhatsApp: +86 18615995257
