Bomco Mud Pump Parts: Classification, Specifications & Procurement Guide

1

AH160201-010401B1

42CrMo Alloy Steel (Quenched & Tempered) - High tensile strength (≥980MPa) and excellent fatigue resistance

1. High-pressure fluid impact leading to material fatigue; 2. Contamination of hydraulic oil with abrasive particles causing internal surface abrasion; 3. Chemical erosion from corrosive drilling mud additives

1. Regularly filter hydraulic oil to maintain cleanliness (NAS 8 class or higher); 2. Inspect pressure relief valves weekly to prevent overpressure operation; 3. Apply anti-corrosion coating to external surfaces if used in marine or high-humidity drilling environments

2

AH130101-050102

Stainless Steel 316L - Superior corrosion resistance and good ductility, suitable for contact with aggressive drilling fluids

1. Pitting corrosion caused by chloride ions in seawater-based drilling mud; 2. Cavitation damage due to insufficient fluid supply; 3. Thermal fatigue from repeated temperature fluctuations during start-stop cycles

1. Monitor chloride ion concentration in drilling mud and add corrosion inhibitors as needed; 2. Ensure adequate pre-filling of hydraulic fluid before startup to avoid cavitation; 3. Maintain proper cooling system operation to stabilize component temperature

3

AH160201-01050001B1

Forged Carbon Steel Q345R - High impact toughness and excellent weldability, designed for pressure vessel components

1. Stress corrosion cracking under combined high pressure and tensile stress; 2. Abrasive wear from solid particles in drilling fluid; 3. Seal failure leading to fluid leakage and secondary erosion

1. Conduct regular non-destructive testing (NDT) using ultrasonic flaw detection to identify hidden cracks; 2. Install secondary filtration systems for drilling fluid to reduce solid particle content; 3. Replace sealing gaskets every 3 months or 500 operating hours, whichever comes first

4

AH160201-01050002B1

42CrMo Alloy Steel (Quenched & Tempered) - Enhanced surface hardness (HRC 38-42) through induction hardening

1. Surface abrasion from high-velocity fluid flow; 2. Fatigue failure due to cyclic pressure loading; 3. Improper installation leading to uneven stress distribution

1. Ensure precise alignment during installation using laser alignment tools; 2. Operate the pump within the recommended pressure range (avoid exceeding 110% of rated pressure); 3. Conduct monthly visual inspections for surface scratches or indentations

5

AH160201-01050003B1

Stainless Steel 316L - Passivated surface treatment to improve corrosion resistance

1. Crevice corrosion in sealing interfaces; 2. Erosion-corrosion from turbulent fluid flow; 3. Degradation of material properties due to prolonged exposure to high temperatures (above 120°C)

1. Clean sealing interfaces thoroughly before installation to remove debris; 2. Optimize fluid flow paths to reduce turbulence (inspect and clean flow channels quarterly); 3. Monitor operating temperature and ensure cooling systems are functioning properly

6

AH160201-01050004B1

42CrMo Alloy Steel - Nitrided surface for improved wear resistance (surface hardness HRC ≥55)

1. Adhesive wear from metal-to-metal contact due to insufficient lubrication; 2. Fatigue pitting under cyclic loading; 3. Corrosion fatigue in humid, corrosive environments

1. Use high-quality lubricants compatible with the material and operating conditions; 2. Implement a scheduled lubrication program (every 250 operating hours); 3. Store spare parts in a dry, climate-controlled environment to prevent rusting

7

AH220201-052101B1

Forged Alloy Steel 35CrMo - High creep resistance and excellent high-temperature performance (up to 150°C)

1. Creep deformation under long-term high-temperature and high-pressure conditions; 2. Abrasive wear from sand and gravel in drilling fluid; 3. Corrosion from hydrogen sulfide (H₂S) in sour gas drilling environments

1. Strictly adhere to maximum operating temperature and pressure limits; 2. Use H₂S-resistant coatings and lubricants in sour gas applications; 3. Install wear-resistant liners in fluid contact areas to extend component life

8

AH220201-052102B1

35CrMo Alloy Steel - Quenched and tempered heat treatment for balanced strength and toughness

1. Impact damage from sudden pressure surges; 2. Corrosion from drilling mud containing organic acids; 3. Fatigue failure at weld joints (if applicable)

1. Install pressure surge dampeners in the hydraulic system; 2. Test drilling mud pH regularly and adjust to neutral range (pH 6.5-8.5); 3. Inspect weld joints annually using magnetic particle testing (MPT)

9

AH160201-01050005B1

Stainless Steel 316Ti - Titanium-stabilized to prevent intergranular corrosion at high temperatures

1. Intergranular corrosion during welding or high-temperature operation; 2. Erosion from high-velocity solid-laden fluid; 3. Galling between mating components due to improper material pairing

1. Use low-heat input welding techniques if repair is needed; 2. Reduce fluid velocity by optimizing pipe diameter and flow rate; 3. Ensure mating components are made of compatible materials (e.g., avoid pairing stainless steel with carbon steel)

1

T503-3005

Alloy Steel 40CrNiMoA - High tensile strength (≥1080MPa) and excellent toughness, suitable for high-torque applications

1. Fatigue failure due to cyclic torque loading; 2. Abrasive wear from contaminated lubricants; 3. Stress concentration at keyway or spline connections

1. Use lubricants with anti-fatigue additives and maintain proper lubricant level; 2. Deburr keyways and splines during installation to reduce stress concentration; 3. Conduct torque testing quarterly to ensure proper tightening of fasteners

2

T507-2011

Forged Steel 20CrMnTi - Carburized and quenched surface (hardness HRC 58-62) for excellent wear resistance and core toughness

1. Contact fatigue (pitting) on gear teeth or bearing surfaces; 2. Abrasive wear from metal particles in lubricating oil; 3. Overheating due to insufficient lubrication or misalignment

1. Install magnetic oil filters to remove metal particles from lubricants; 2. Check alignment of transmission shafts using dial indicators (maximum misalignment ≤0.05mm); 3. Monitor operating temperature (normal range: 40-80°C) and investigate any abnormal temperature rise

3

T503-3008

42CrMo Alloy Steel - Induction-hardened surface for improved wear resistance and fatigue strength

1. Torsional fatigue failure from sudden load changes; 2. Corrosion from moisture ingress into the transmission case; 3. Wear at bearing seats due to vibration

1. Avoid sudden startup and shutdown of the pump; 2. Inspect transmission case seals regularly to prevent moisture ingress; 3. Install vibration dampeners to reduce operational vibration and check bearing clearance monthly

4

T507-2007

20CrMnTi Alloy Steel - Carburized layer depth 0.8-1.2mm for enhanced surface wear resistance

1. Gear tooth wear from improper meshing (misalignment); 2. Fatigue cracking at the root of gear teeth; 3. Galling between mating gear teeth due to insufficient lubrication

1. Adjust gear meshing clearance to manufacturer's specifications (0.15-0.30mm); 2. Conduct periodic gear tooth inspection using dye penetrant testing (DPT) to detect cracks; 3. Use extreme pressure (EP) lubricants to prevent galling

5

T503-3015

35CrMo Alloy Steel - Quenched and tempered to achieve a balance of strength (σb ≥900MPa) and ductility (δ5 ≥12%)

1. Bending fatigue failure from unbalanced loads; 2. Abrasive wear from sand and dust contamination; 3. Corrosion from exposure to drilling fluids or harsh weather conditions

1. Balance rotating components before installation (maximum unbalance ≤2.5g·mm/kg); 2. Install dust covers and protective shields to prevent contamination; 3. Apply anti-rust coating to external surfaces and store spare parts in a dry environment

6

T503-3024

40CrNiMoA Alloy Steel - Forged blank for uniform material structure and improved mechanical properties

1. Shear failure at bolted connections; 2. Fatigue wear from repeated load cycles; 3. Corrosion fatigue in marine or high-humidity environments

1. Use high-strength bolts with proper torque specifications and lock washers; 2. Implement a load monitoring system to avoid overloading the transmission; 3. Use corrosion-resistant fasteners and apply anti-corrosion grease to bolt threads

7

T507-2008

20CrMnTi Alloy Steel - Carburized and tempered heat treatment for superior surface hardness and core toughness

1. Wear at spline connections due to axial movement; 2. Fatigue pitting on bearing raceways; 3. Overheating due to blocked lubrication channels

1. Install thrust washers to limit axial movement of splines; 2. Clean lubrication channels regularly to ensure unobstructed oil flow; 3. Replace bearings every 2000 operating hours or if abnormal noise is detected

8

T503-4014

42CrMo Alloy Steel - Nitrided surface (nitride layer depth 0.3-0.5mm) for improved wear and corrosion resistance

1. Abrasive wear from contaminated lubricants; 2. Fatigue failure from cyclic bending loads; 3. Corrosion from acidic drilling mud splashes

1. Change lubricating oil every 500 operating hours or as recommended by the manufacturer; 2. Inspect for bending deformation using a straightedge (maximum deformation ≤0.1mm/m); 3. Clean external surfaces regularly and apply protective coating to prevent mud adhesion

9

T507-2001

Forged Steel 20CrMnTi - High surface hardness (HRC 59-63) and good impact toughness (αk ≥60J/cm²)

1. Impact damage from sudden load spikes; 2. Gear tooth scuffing due to high operating temperatures; 3. Wear at keyway connections due to vibration

1. Install a load limiter to prevent overload; 2. Ensure proper cooling of the transmission system; 3. Use keyway inserts if wear is detected to restore fit and reduce vibration

10

T503-4013

35CrMo Alloy Steel - Quenched and tempered for balanced mechanical properties

1. Fatigue cracking at stress concentration points; 2. Corrosion from moisture and salt in offshore drilling environments; 3. Abrasive wear from sand particles in desert drilling operations

1. Smooth all sharp edges and corners to reduce stress concentration; 2. Use marine-grade anti-corrosion coatings for offshore applications; 3. Install dust filters and seals to prevent sand ingress

11

T508-6001

40CrNiMoA Alloy Steel - High fatigue strength (σ-1 ≥500MPa) for long service life under cyclic loads

1. Torsional fatigue failure from continuous high-torque operation; 2. Wear at bearing surfaces due to insufficient lubrication; 3. Corrosion from chemical additives in drilling mud

1. Operate the pump within the recommended torque range; 2. Implement an automatic lubrication system for continuous oil supply; 3. Test drilling mud for chemical compatibility and use appropriate inhibitors

1

170506010100243000

Reinforced Nitrile Rubber (NBR) with Carbon Fiber Filler - High abrasion resistance (DIN 53516: ≥150mm³) and good oil resistance

1. Abrasive wear from solid particles in drilling fluid; 2. Swelling and degradation from exposure to mineral oils or chemical additives; 3. Hardening and cracking due to high operating temperatures (above 100°C)

1. Install suction strainers to reduce solid particle content in drilling fluid; 2. Use compatible lubricants and avoid contact with incompatible chemicals (e.g., aromatic solvents); 3. Maintain operating temperature below 90°C to prevent rubber degradation

2

420505032450180000

Ceramic Composite (Al₂O₃ ≥95%) - High hardness (HV ≥1800) and excellent wear resistance, suitable for high-abrasion applications

1. Impact damage from large cuttings or gravel in drilling fluid; 2. Thermal shock from sudden temperature changes; 3. Chemical corrosion from strong acids or alkalis

1. Install centrifugal separators to remove large particles from drilling fluid; 2. Avoid rapid heating or cooling of the component (maximum temperature change rate ≤5°C/min); 3. Test drilling fluid pH and use neutralizing agents to maintain pH 6.5-8.5

3

AH100101-052302

Fluorocarbon Rubber (FKM/Viton) - Excellent chemical resistance and high-temperature stability (up to 200°C)

1. Compression set due to long-term static loading; 2. Abrasive wear from fine particles in drilling fluid; 3. Degradation from exposure to low-molecular-weight ketones or esters

1. Avoid over-compression during installation (compression ratio: 15-25% for static seals); 2. Use fine-mesh filters (≤200 mesh) to remove fine particles; 3. Ensure compatibility with all drilling fluid additives before use

4

AH100101-052303

FKM/Viton with Glass Fiber Reinforcement - Enhanced tensile strength and wear resistance compared to standard FKM

1. Abrasive wear from high-velocity fluid flow; 2. Tear damage from contact with sharp edges or cuttings; 3. Compression fatigue from cyclic pressure loading

1. Optimize fluid flow rate to reduce velocity at seal interfaces; 2. Remove sharp edges from adjacent components and install wear plates; 3. Inspect seal compression regularly and adjust as needed to maintain proper sealing force

5

AH130101-052201

Hardened Steel 440C (HRC 58-62) with Teflon Coating - Excellent wear resistance and low friction coefficient

1. Coating wear from abrasive particles; 2. Corrosion from saltwater or acidic drilling fluid; 3. Friction wear from insufficient lubrication

1. Use lubricants with anti-wear additives; 2. Apply additional corrosion-resistant coating for marine or acidic environments; 3. Monitor friction temperature and ensure adequate lubrication

6

530301011850070015

Polyurethane (PU) Elastomer - High elasticity and excellent abrasion resistance (DIN 53516: ≥80mm³)

1. Abrasive wear from solid particles; 2. Hydrolytic degradation in water-based drilling fluids; 3. Oxidation from exposure to air and sunlight

1. Add anti-hydrolysis additives to water-based drilling fluids; 2. Store spare parts in a dark, dry environment to prevent oxidation; 3. Install protective sleeves to reduce direct contact with abrasive particles

7

420201011116065060

Tungsten Carbide (WC-Co 8%) - Ultra-high hardness (HV ≥1500) and superior wear resistance for extreme abrasion conditions

1. Impact fracture from large, hard particles; 2. Corrosion from molten salts or aggressive chemicals; 3. Thermal fatigue from repeated temperature cycles

1. Use pre-filtration systems to remove large, hard particles; 2. Avoid contact with molten salts and use chemical-resistant liners if needed; 3. Maintain stable operating temperature to prevent thermal fatigue

8

420402016160400000

NBR Rubber with Aramid Fiber Reinforcement - High tensile strength and abrasion resistance

1. Abrasive wear from drilling fluid cuttings; 2. Swelling from exposure to oil-based drilling fluids; 3. Cracking due to ozone exposure in outdoor environments

1. Use oil-resistant NBR compounds for oil-based drilling fluids; 2. Apply ozone-resistant coating for outdoor applications; 3. Clean seal surfaces regularly to remove accumulated cuttings

9

AH100101-0526

Silicone Rubber (VMQ) - Excellent high-temperature resistance (up to 250°C) and good flexibility at low temperatures

1. Abrasive wear from solid particles; 2. Degradation from exposure to petroleum-based oils; 3. Hardening from long-term high-temperature exposure

1. Avoid use with petroleum-based oils (use synthetic lubricants instead); 2. Install particle filters to reduce abrasive wear; 3. Limit continuous operating temperature to 200°C to extend service life

10

520402020013000401

Alumina Ceramic (Al₂O₃ ≥99%) - High purity for superior corrosion and wear resistance

1. Chemical corrosion from strong acids or alkalis; 2. Impact damage from hard particles; 3. Thermal shock from rapid temperature changes

1. Test drilling fluid chemical composition and use compatible inhibitors; 2. Install buffer zones to reduce particle impact; 3. Gradually heat or cool the component to avoid thermal shock

11

AH000005-080001

PTFE (Teflon) with Glass Fiber Filler - Low friction coefficient and excellent chemical resistance

1. Abrasive wear from solid particles; 2. Cold flow (creep) under long-term load; 3. Degradation from high temperatures (above 260°C)

1. Use PTFE-compatible lubricants to reduce friction; 2. Limit applied load to prevent cold flow; 3. Maintain operating temperature below 240°C

12

AH000005-080002

PTFE with Carbon Fiber Filler - Enhanced wear resistance and dimensional stability compared to standard PTFE

1. Abrasive wear from high-velocity solid-laden fluid; 2. Creep deformation under static load; 3. Degradation from exposure to radiation (in nuclear drilling applications)

1. Reduce fluid velocity at PTFE interfaces; 2. Use support rings to prevent creep deformation; 3. Use radiation-resistant PTFE grades for nuclear applications

13

520405010013000101

NBR/PU Blend - Combined advantages of NBR (oil resistance) and PU (abrasion resistance)

1. Abrasive wear from drilling fluid cuttings; 2. Swelling from oil-based drilling fluids; 3. Fatigue cracking from cyclic pressure loading

1. Use in mixed oil-water drilling fluid environments; 2. Install pressure relief valves to reduce cyclic pressure; 3. Clean seal surfaces regularly to remove debris

14

AH000005-0602

Hardened Alloy Steel 17-4 PH (HRC 40-45) - Corrosion-resistant and wear-resistant

1. Corrosion from seawater or acidic drilling fluid; 2. Abrasive wear from solid particles; 3. Fatigue failure under cyclic loading

1. Use in offshore or sour gas drilling applications; 2. Apply anti-wear coating for enhanced protection; 3. Conduct periodic NDT to detect fatigue cracks

15

AH000005-0603

17-4 PH Steel with Passivation Treatment - Improved corrosion resistance

1. Pitting corrosion from chloride ions; 2. Abrasive wear from sand particles; 3. Stress corrosion cracking under tensile stress

1. Add chloride ion scavengers to drilling fluid; 2. Install sand screens to reduce sand ingress; 3. Relieve residual stress through heat treatment after installation

16

530301010250035515

Polyurethane (PU) with Carbon Black Filler - Improved UV resistance and abrasion resistance

1. Abrasive wear from drilling fluid particles; 2. UV degradation in outdoor applications; 3. Hydrolytic degradation in water-based fluids

1. Use in outdoor drilling operations; 2. Add anti-hydrolysis additives to water-based fluids; 3. Store spare parts in a UV-protected container

17

530301013450070015

Nitrile Rubber (NBR) - Good oil resistance and abrasion resistance for general-purpose sealing

1. Abrasive wear from solid particles; 2. Swelling from exposure to synthetic oils; 3. Hardening from low temperatures (below -10°C)

1. Use in oil-based drilling fluid applications; 2. Avoid use in low-temperature environments (use low-temperature NBR grades if needed); 3. Install particle filters to reduce wear

18

AH160201-0201B1

FKM/Viton - High-temperature and chemical-resistant rubber

1. Abrasive wear from high-velocity fluid; 2. Degradation from aggressive chemicals; 3. Compression set from long-term static load

1. Use in high-temperature, chemical-intensive drilling operations; 2. Maintain proper seal compression; 3. Use compatible lubricants and chemicals

19

AH160201-020200B1

Reinforced FKM with Aramid Fibers - Enhanced tensile strength and wear resistance

1. Tear damage from sharp cuttings; 2. Abrasive wear from solid particles; 3. Thermal degradation at high temperatures

1. Remove sharp edges from adjacent components; 2. Install cuttings separators; 3. Limit operating temperature to 200°C

20

AH160201-0203B1

Ceramic-Coated Steel - Steel substrate with alumina ceramic coating for superior wear resistance

1. Coating peeling from impact damage; 2. Abrasive wear from solid particles; 3. Corrosion of steel substrate if coating is damaged

1. Avoid impact from large particles; 2. Inspect coating regularly for damage; 3. Repair small coating defects promptly to prevent substrate corrosion

21

AH160201-020400B1

PTFE-Lined NBR - Combined chemical resistance of PTFE and oil resistance of NBR

1. Abrasive wear of PTFE lining; 2. Swelling of NBR substrate from oil; 3. Delamination of PTFE lining from NBR

1. Use in mixed chemical and oil environments; 2. Avoid over-compression to prevent delamination; 3. Use fine-mesh filters to reduce abrasive wear

22

AH160201-0205B1

Tungsten Carbide-Coated Steel - Enhanced wear resistance for extreme abrasion conditions

1. Coating wear from high-velocity abrasive particles; 2. Impact damage from hard particles; 3. Thermal fatigue from temperature cycles

1. Use in high-abrasion drilling environments; 2. Install particle reduction systems; 3. Maintain stable operating temperature

23

AH160201-0122B1

NBR Rubber - General-purpose oil-resistant sealing material

1. Abrasive wear from solid particles; 2. Swelling from oil-based fluids; 3. Fatigue cracking from cyclic pressure

1. Use in standard oil-based drilling applications; 2. Install particle filters; 3. Use pressure relief valves to reduce cyclic stress

24

420101063104000800

Polyurethane (PU) - High elasticity and abrasion resistance

1. Abrasive wear from drilling fluid cuttings; 2. Hydrolytic degradation in water-based fluids; 3. Oxidation from air exposure

1. Use in water-based drilling applications with anti-hydrolysis additives; 2. Store in a dry, airtight container; 3. Install protective sleeves to reduce particle contact

25

AH160201-020201B1

FKM/Viton with Carbon Fiber - Enhanced wear resistance and dimensional stability

1. Abrasive wear from high-velocity fluid; 2. Chemical degradation from aggressive additives; 3. Compression fatigue from cyclic loading

1. Use in high-velocity, chemical-rich drilling operations; 2. Maintain proper seal compression; 3. Inspect regularly for signs of wear or degradation

26

AH160201-020202B1

Reinforced NBR with Glass Fibers - High tensile strength and abrasion resistance

1. Tear damage from sharp cuttings; 2. Abrasive wear from solid particles; 3. Swelling from oil-based fluids

1. Remove sharp cuttings from fluid flow; 2. Install particle filters; 3. Use in oil-based drilling applications with compatible fluids