Supply Liners for NOV 14-P-220 Triplex Mud Pumps

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DHNO 07545500

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Cyclic pressure fatigue (up to 7500 Psi); 3. Chemical degradation from aggressive fluid additives.

1. Maintain API-compliant mud viscosity to reduce erosion; 2. Inspect internal surfaces monthly for scoring; 3. Avoid mixing incompatible fluid additives.

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DHNO 05545500

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Cyclic pressure fatigue (up to 7500 Psi); 3. Misalignment-induced uneven wear.

1. Ensure proper liner-to-pump alignment during installation; 2. Replace companion wear parts (e.g., piston cups) simultaneously; 3. Flush the system to remove debris before installation.

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DHNO 07545600

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Thermal fatigue from extreme temperature fluctuations; 3. Fluid-induced corrosion.

1. Monitor fluid temperature to avoid thermal stress; 2. Use corrosion inhibitors in aggressive drilling environments; 3. Inspect for rust or pitting on external surfaces quarterly.

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DHNO 07545650

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Piston cup misalignment causing internal scuffing; 3. Overpressure spikes beyond 7500 Psi.

1. Install pressure relief valves to prevent overpressure; 2. Inspect piston cup alignment before operation; 3. Replace liners if internal scuffing exceeds 0.020".

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DHNO 07545700

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Contaminant buildup (sand, debris) causing localized wear; 3. Cyclic pressure fatigue over extended use.

1. Use high-efficiency suction strainers to filter debris; 2. Clean liners thoroughly during routine maintenance; 3. Replace after 1,500 hours of operation (or as needed).

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DHNO 07545750

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Chemical attack from high-pH drilling fluids; 3. Improper installation torque causing leaks.

1. Maintain fluid pH between 8-10; 2. Torque liner retaining components per NOV specs (Document 14P220-MAINT-001); 3. Inspect for leaks post-installation.

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DHNO 07545800

Supply Liner for NOV 14-P-220 Triplex Mud Pump

Abrasion-resistant alloy steel (AISI 4140), internally hardened to HRC 60-65 for enhanced wear resistance

1. Abrasive drilling mud particle erosion; 2. Thermal stress from rapid temperature changes; 3. Wear from misaligned valve components.

1. Gradually adjust fluid temperature to avoid thermal shock; 2. Align valve components per API Spec 7K Clause 5.4; 3. Inspect liner fit annually for looseness.

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DHNO 05545550HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Sustained high-pressure operation (exceeding 7500 Psi); 3. Coating degradation from chemical exposure.

1. Use only HP-rated drilling fluids; 2. Monitor pressure to stay within recommended limits; 3. Inspect coating for chips or peeling monthly.

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DHNO 05545600HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Cyclic high-pressure fatigue; 3. Thermal stress from prolonged heavy-duty use.

1. Schedule downtime for thermal cooling during extended operations; 2. Replace companion HP piston cups to match liner performance; 3. Flush system with clean fluid after heavy use.

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DHNO 05545650HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Contaminant-induced scuffing; 3. Corrosion from aggressive HP drilling fluids.

1. Use premium suction strainers to block fine debris; 2. Apply HP-grade corrosion inhibitors; 3. Inspect internal surfaces for scuffing every 500 hours.

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DHNO 05545700HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Overpressure spikes (critical for HP operations); 3. Misalignment-induced uneven wear.

1. Install advanced pressure monitoring systems; 2. Align liners with precision tools per NOV’s HP installation guidelines; 3. Re-torque retaining components quarterly.

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DHNO 05545750HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Chemical degradation from HP fluid additives; 3. Thermal fatigue from rapid temperature swings.

1. Verify fluid additive compatibility with HP liners; 2. Implement gradual temperature adjustments; 3. Replace if coating degradation exceeds 10% of surface area.

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DHNO 05545800HP

High-Performance Supply Liner for NOV 14-P-220 Triplex Mud Pump

Tungsten carbide-coated alloy steel, dual-hardened (internal HRC 65-70) for extreme abrasion and pressure resistance

1. Extreme abrasive mud particle impact; 2. Wear from misaligned HP valve assemblies; 3. Cyclic fatigue from continuous heavy-duty operation.

1. Align HP valve assemblies per API Spec 7K Clause 6.2; 2. Rotate liners periodically to distribute wear evenly; 3. Replace after 2,000 hours of HP operation.

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What’s the difference between standard and HP supply liners for NOV 14-P-220 pumps?

Standard liners (e.g., DHNO 07545500) use hardened alloy steel for 7500 Psi service, suited for mid-duty drilling. HP liners (e.g., DHNO 05545550HP) have tungsten carbide coatings and dual hardening for extreme abrasion/pressure, ideal for heavy-duty operations exceeding standard pressure limits.

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How often should I replace these supply liners?

Standard liners last ~1,500 hours; HP liners ~2,000 hours (HP service). Adjust intervals based on mud abrasiveness—replace sooner if internal scuffing exceeds 0.020" or coating peeling exceeds 10%. Always replace companion wear parts (piston cups) to avoid uneven liner wear.

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Are these liners compatible with all NOV 14-P-220 triplex mud pump configurations?

Yes, all liners are OEM-aligned for NOV 14-P-220 triplex mud pumps, complying with NOV’s original design specifications (ODS) and API Spec 7K. They fit standard and HP pump configurations, ensuring seamless integration without modifications to the fluid end assembly.