1. Equipment Compatibility & Core Application
This guide is exclusively for NOV 14-P-220 Fluid End Modules & Accessories, compatible with 7500 Psi 14-P-220 mud pumps. Tailored for drilling contractors, maintenance teams, and procurement managers, these parts ensure leak-tight fluid circulation, withstand high-pressure drilling conditions, and reduce unplanned downtime—critical for oil/gas drilling efficiency and compliance with API Spec 7K standards.
2. Complete Fluid End Assemblies
Designed for direct replacement in NOV 14-P-220 7500 Psi mud pumps, these full assemblies eliminate compatibility risks and cut maintenance time. They address high-pressure leakage and assembly misalignment pain points, ideal for onshore/offshore drilling where reliable fluid end performance is non-negotiable.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 80700030 | Assembly, Fluid End Complete For 14P220 (7500 Psi) | High-strength alloy steel (structural components), wear-resistant polyurethane (seals/valves) | 1. Cyclic high-pressure (7500 Psi) fatigue; 2. Abrasive drilling mud erosion; 3. Seal degradation from chemical exposure. | 1. Inspect seals weekly for leaks; 2. Use API-compliant drilling fluids; 3. Follow torque specs during installation to avoid misalignment. |
3. Studded Modules
Integral for 14-P-220 fluid end functionality, these pre-configured modules simplify installation and ensure pressure-tight connections. They resolve module misalignment and leak issues, suited for high-pressure drilling scenarios requiring rapid maintenance and consistent fluid flow.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 80700012 | Module, Discharge Studded (Includes Items 2-10) | Heat-treated carbon steel (module body), corrosion-resistant alloy (studs) | 1. High discharge pressure stress; 2. Stud loosening from pump vibration; 3. Fluid-induced corrosion. | 1. Re-torque studs per NOV specs quarterly; 2. Apply anti-corrosion coating to exposed surfaces; 3. Inspect for cracks post-high-pressure operations. |
2 | 80700013 | Module, Suction Studded (Includes Items 2-4) | Heat-treated carbon steel (module body), corrosion-resistant alloy (studs) | 1. Suction pressure fluctuations; 2. Abrasive debris in suction fluid; 3. Seal wear between module components. | 1. Install suction strainers to filter debris; 2. Replace seals annually or at first sign of leakage; 3. Monitor suction pressure for abnormal fluctuations. |
4. Studs & Nuts
Critical for securing fluid end components, these fasteners withstand 7500 Psi pressures and pump vibration. They address fastener failure and component misalignment—common causes of downtime—ideal for maintaining structural integrity in harsh drilling environments.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 80700014 | Stud, Threaded Ring | Alloy steel (AISI 4140), cadmium-plated for corrosion resistance | 1. Over-torquing during installation; 2. Vibration-induced fatigue; 3. Corrosion from drilling fluids. | 1. Use calibrated torque wrenches; 2. Replace if threads show galling; 3. Clean and reapply anti-seize compound before installation. |
2 | 6300240 | Nut, Threaded Ring Stud | Carbon steel, zinc-plated for corrosion resistance | 1. Thread wear from repeated installation/removal; 2. Torque overload; 3. Rust formation in humid/offshore environments. | 1. Avoid reusing nuts with stripped threads; 2. Store in dry, sealed containers; 3. Inspect for rust before installation. |
3 | 2408027 | Stud, Power Frame | Alloy steel (AISI 4140), heat-treated for high tensile strength | 1. Power frame vibration fatigue; 2. Uneven load distribution; 3. Corrosion from lubricant contamination. | 1. Inspect for bending annually; 2. Ensure uniform torque across all studs; 3. Maintain clean lubrication systems to prevent contamination. |
4 | 6300240 | Nut, Power Frame Stud | Carbon steel, zinc-plated for corrosion resistance | 1. Thread wear from vibration; 2. Over-torquing; 3. Chemical degradation from oil/lubricant exposure. | 1. Check torque monthly; 2. Replace if nut fails to hold torque; 3. Use compatible lubricants to avoid chemical reactions. |
5 | 2408047 | Stud, Liner Bushing | Alloy steel, cadmium-plated for corrosion resistance | 1. Liner movement-induced stress; 2. Abrasive debris contact; 3. Corrosion from drilling mud seepage. | 1. Inspect liner alignment to reduce stress; 2. Clean studs before reinstallation; 3. Replace if threads are damaged by debris. |
6 | 6300200 | Nut, Liner Bushing Stud | Carbon steel, zinc-plated for corrosion resistance | 1. Thread galling from improper installation; 2. Vibration-induced loosening; 3. Rust in damp conditions. | 1. Apply anti-seize compound to threads; 2. Re-torque after first 10 hours of operation; 3. Store in moisture-free areas. |
7 | 80700015 | Stud, Discharge To Suction Module | Alloy steel (AISI 4140), heat-treated for high strength | 1. Pressure differential between discharge/suction; 2. Module misalignment stress; 3. Corrosion from fluid leakage. | 1. Align modules precisely before torquing; 2. Inspect for leaks around studs; 3. Replace if studs show signs of bending. |
8 | 6300320 | Nut, Discharge To Suction Stud | High-strength carbon steel, zinc-plated | 1. Torque overload; 2. Thread wear from repeated use; 3. Corrosion from mixed fluid exposure. | 1. Follow NOV torque specifications strictly; 2. Replace nuts after 3–4 installation cycles; 3. Clean threads to remove fluid residue. |
9 | 80700016 | Stud, Discharge Manifold | Alloy steel, cadmium-plated for corrosion resistance | 1. High discharge pressure stress; 2. Manifold vibration; 3. Chemical corrosion from drilling fluids. | 1. Monitor discharge pressure for spikes; 2. Re-torque studs quarterly; 3. Apply anti-corrosion spray to exposed areas. |
10 | 6300240 | Nut, Discharge Manifold Stud | Carbon steel, zinc-plated for corrosion resistance | 1. Thread loosening from vibration; 2. Over-torquing damage; 3. Rust in offshore/ humid environments. | 1. Use lock washers to prevent loosening; 2. Inspect nuts for cracks; 3. Replace if rust penetrates thread surfaces. |
5. Manifolds & Related Components
Essential for directing drilling fluid flow in 14-P-220 pumps, these components resist high pressure and abrasion. They solve fluid leakage and flow restriction issues, critical for maintaining consistent pump performance in 7500 Psi drilling operations.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 80700002 | Discharge Manifold | Abrasion-resistant alloy steel, internally hardened | 1. High-velocity fluid erosion; 2. Abrasive mud particle impact; 3. Pressure spike damage. | 1. Maintain proper mud viscosity to reduce erosion; 2. Inspect internal surfaces annually; 3. Install pressure relief valves to prevent spikes. |
2 | 1295317 | Suction Manifold | Abrasion-resistant alloy steel | 1. Debris accumulation and impact; 2. Suction cavitation; 3. Corrosion from fluid contaminants. | 1. Use high-efficiency suction strainers; 2. Monitor suction pressure to avoid cavitation; 3. Flush manifold regularly to remove debris. |
3 | 700048511 | Capscrew, Suction Manifold | Alloy steel (Grade 5), cadmium-plated | 1. Vibration-induced fatigue; 2. Over-torquing; 3. Corrosion from suction fluid leakage. | 1. Torque to NOV specifications; 2. Inspect for looseness monthly; 3. Replace if threads are damaged. |
4 | 1540021 | Seal, Suction Manifold | Nitrile rubber (NBR), resistant to drilling fluids | 1. Fluid chemical degradation; 2. Compression set from over-torquing; 3. Abrasive debris damage. | 1. Replace annually or at first leak; 2. Avoid over-compressing during installation; 3. Clean seal seats before replacement. |
6. Valve Covers & Threaded Components
Protects internal valve components from debris and fluid leakage, ensuring reliable valve operation at 7500 Psi. These parts address contamination and valve damage—common issues in harsh drilling—ideal for preserving valve lifespan and pump efficiency.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 80700003 | Valve Cover | Carbon steel, painted for corrosion resistance | 1. Impact damage during maintenance; 2. Corrosion from environmental exposure; 3. Gasket failure-induced fluid seepage. | 1. Handle carefully during maintenance; 2. Touch up paint to prevent rust; 3. Replace gaskets when reinstalling. |
2 | 80700004 | Threaded Ring | Alloy steel, heat-treated for thread strength | 1. Thread wear from repeated installation; 2. Over-torquing; 3. Corrosion from fluid contact. | 1. Use proper tools to avoid cross-threading; 2. Apply anti-seize compound; 3. Replace if threads are stripped. |
3 | 80700005 | Threaded Cap | Carbon steel, zinc-plated for corrosion resistance | 1. Thread damage from improper handling; 2. Corrosion in damp environments; 3. Seal degradation. | 1. Avoid over-tightening; 2. Store in dry conditions; 3. Inspect seal before reinstallation. |
7. Wear Plates & Shim Packs
Reduce friction and maintain component alignment in 14-P-220 fluid ends, addressing premature wear and misalignment. These parts extend component lifespan, ideal for high-cycle drilling operations requiring long-term reliability.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 88500223 | Wear Plate, Outer | Tungsten carbide-coated steel, high wear resistance | 1. Abrasive mud particle impact; 2. Metal-to-metal contact from misalignment; 3. Thermal fatigue from temperature fluctuations. | 1. Inspect for coating wear monthly; 2. Ensure proper alignment to avoid contact; 3. Monitor fluid temperature to prevent thermal stress. |
2 | 88500222 | Wear Plate, Grease | Steel with molybdenum disulfide coating (lubricant-infused) | 1. Grease depletion; 2. Abrasive debris contamination; 3. Overload stress. | 1. Reapply grease per maintenance schedule; 2. Keep surrounding areas clean; 3. Avoid excessive load on the plate. |
3 | 80700006 | Shim Pack | Stainless steel, precision-cut for uniform thickness | 1. Bending from improper installation; 2. Corrosion from fluid seepage; 3. Wear from component movement. | 1. Handle with care to avoid bending; 2. Clean before installation; 3. Replace if shims are warped or corroded. |
8. Screws & Pins
Secure small components and maintain alignment, critical for preventing part dislodgement in high-vibration 14-P-220 pumps. These parts resolve fastener loss and component misalignment, ensuring reliable operation in harsh drilling conditions.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 700039511 | Screw, Hex Hd Cap 5/8 X 1-1/2 | Alloy steel (Grade 5), cadmium-plated | 1. Vibration-induced loosening; 2. Over-torquing; 3. Corrosion from environmental exposure. | 1. Use lock washers; 2. Torque to specification; 3. Inspect for rust and replace as needed. |
2 | 405086 | Screw, Valve Guide | Alloy steel, zinc-plated | 1. Valve movement-induced stress; 2. Thread wear from repeated removal; 3. Corrosion from fluid leakage. | 1. Inspect valve alignment to reduce stress; 2. Replace after 5–6 installation cycles; 3. Clean threads before reinstallation. |
3 | 6511416 | Pin, Dowell Std Hdn & Grd 7/8 | Hardened steel (HRC 55–60), corrosion-resistant coating | 1. Shear stress from component movement; 2. Wear from misalignment; 3. Corrosion in damp environments. | 1. Ensure proper component alignment; 2. Inspect for shear cracks quarterly; 3. Apply anti-corrosion grease. |
9. Valves & Valve Components
Control fluid flow in 14-P-220 fluid ends, withstanding 7500 Psi pressure and abrasive mud. These components resolve valve leakage and flow restriction—key causes of pump inefficiency—compliant with API Spec 7K for drilling safety.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 9700369 | Valve, White Lightning (Series 8) | Polyurethane (valve disc), alloy steel (valve body) | 1. Abrasive mud erosion; 2. Valve seat misalignment; 3. Chemical degradation from drilling fluids. | 1. Use compatible drilling fluids; 2. Inspect seat alignment monthly; 3. Replace disc if worn beyond 0.030". |
2 | 9702751 | Seat, Hd8-S07 | Tungsten carbide, high hardness for wear resistance | 1. Valve disc impact; 2. Abrasive debris contact; 3. Pressure-induced stress. | 1. Replace with valve disc to ensure fit; 2. Clean seat before installation; 3. Monitor valve operation for noise (sign of misalignment). |
3 | 9700372 | Insert,Valve Wl #8 Series (Included In Item 24) | Polyurethane, wear-resistant and flexible | 1. Fluid erosion; 2. Compression set from repeated valve cycling; 3. Chemical attack from aggressive muds. | 1. Replace when valve leakage occurs; 2. Avoid using aggressive chemical additives; 3. Maintain proper fluid pH levels. |
4 | 055413256 | Spring, 5710-101 | Chrome silicon steel, heat-treated for fatigue resistance | 1. Cyclic fatigue from valve operation; 2. Corrosion from fluid contamination; 3. Over-compression. | 1. Inspect for spring set annually; 2. Replace if spring loses tension; 3. Keep fluid clean to prevent corrosion. |
5 | 80700011 | Guide, Valve (Discharge) | Alloy steel, internally polished for smooth valve movement | 1. Valve stem wear; 2. Abrasive debris contamination; 3. Corrosion from discharge fluid. | 1. Lubricate regularly with compatible grease; 2. Filter discharge fluid to remove debris; 3. Inspect for internal wear annually. |
6 | 80700010 | Guide, Valve (Suction) | Alloy steel, internally polished for smooth valve movement | 1. Valve stem wear; 2. Debris accumulation; 3. Corrosion from suction fluid contaminants. | 1. Clean suction strainers regularly; 2. Lubricate with compatible grease; 3. Replace if internal surfaces are scored. |
7 | Pz789Vgi | Insert, Valve Guide | Bronze alloy, self-lubricating properties | 1. Valve stem friction; 2. Abrasive debris contact; 3. Corrosion from fluid exposure. | 1. Inspect for wear monthly; 2. Replace if valve sticks; 3. Use clean, compatible lubricants. |
10. Wear Plates & Seals (Additional)
Provide secondary wear protection and fluid sealing, complementing primary components to extend fluid end lifespan. These parts address secondary leakage and wear, critical for minimizing maintenance frequency in 7500 Psi operations.
No. | Part Number | Part Name | Material | Key Wear Causes | Damage Prevention Tips |
1 | 1295266 | Plate, Wear | Steel with ceramic coating, high abrasion resistance | 1. Abrasive mud impact; 2. Metal-to-metal contact; 3. Thermal stress from temperature changes. | 1. Inspect coating for chips monthly; 2. Ensure proper component alignment; 3. Monitor fluid temperature. |
2 | 07207109 | Gasket, Valve Cover - L Style - Rubber | EPDM rubber, resistant to heat and drilling fluids | 1. Heat degradation; 2. Over-compression; 3. Chemical attack from fluid additives. | 1. Replace annually or at first leak; 2. Torque valve cover to NOV specs; 3. Avoid incompatible fluid additives. |
3 | 1295257 | Seal, Suction Module & Wear Plate | Nitrile rubber (NBR), oil and fluid resistant | 1. Fluid leakage-induced degradation; 2. Abrasive debris damage; 3. Compression set. | 1. Replace when suction module is serviced; 2. Clean seal seat before installation; 3. Avoid over-torquing. |
4 | 99607344 | Seal, Discharge Manifold | Fluorocarbon rubber (Viton), high chemical and temperature resistance | 1. High discharge temperature; 2. Chemical degradation; 3. Pressure-induced extrusion. | 1. Inspect for leaks quarterly; 2. Replace if seal is swollen or cracked; 3. Ensure manifold alignment to reduce stress. |
11. On-Site Fault Maintenance Case
Case: Discharge Manifold Leak & Valve Malfunction
Issue: An offshore drilling rig operating a NOV 14-P-220 mud pump (7500 Psi) reported severe discharge manifold leakage and reduced fluid flow. Inspection revealed a damaged discharge manifold seal (99607344) and worn White Lightning Series 8 valve (9700369), caused by abrasive mud erosion and improper seal installation.
Solution: Replaced the Viton discharge manifold seal and polyurethane valve disc, aligned the discharge manifold per API Spec 7K (Clause 5.4) torque requirements, and flushed the system to remove debris. Post-repair, the pump restored full flow capacity, and leakage was eliminated—complying with NOV’s maintenance standards for high-pressure fluid ends.
12. FAQ (Frequently Asked Questions)
No. | Question | Answer |
1 | Are these parts compatible with NOV 14-P-220 pumps rated for 7500 Psi? | Yes, all parts are engineered exclusively for NOV 14-P-220 fluid ends and rated for 7500 Psi operations, complying with NOV’s original design specifications (ODS) and API Spec 7K. They ensure seamless integration and safe, reliable performance under high-pressure drilling conditions. |
2 | How often should I replace the discharge manifold seal (99607344)? | Replace the Viton discharge manifold seal annually or at the first sign of leakage. For harsh abrasive mud conditions, inspect quarterly—debris and high temperature can accelerate seal degradation. Always follow NOV’s maintenance manual (Document 14P220-MAINT-001) for tailored intervals. |
3 | What’s the difference between White Lightning Series 8 valve materials? | The White Lightning Series 8 valve (9700369) uses a polyurethane disc for superior abrasion resistance and flexibility, paired with an alloy steel body for strength. The valve insert (9702751) features tungsten carbide for a hard, wear-resistant seat—ideal for 7500 Psi operations with abrasive drilling muds. |
13. Procurement Guidance
For NOV 14-P-220 7500 Psi fluid end operations, prioritizing OEM-compatible, API Spec 7K-compliant parts is critical to avoiding unplanned downtime, ensuring operator safety, and protecting your equipment investment. All parts in this guide meet NOV’s original design tolerances, use industry-grade materials, and undergo rigorous quality testing to withstand high-pressure, abrasive drilling conditions.
Each part is traceable via its unique part number, eliminating misordering risks and ensuring seamless integration. Our team of oilfield technical experts provides compatibility verification, maintenance guidance, and tailored procurement solutions to keep your 14-P-220 pump operating at peak efficiency. Choose reliable, standards-aligned parts to minimize maintenance costs and maximize drilling productivity—contact us today to discuss your procurement needs.
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