Piston Rubber for NOV 14-P-220 Triplex Mud Pumps

1

DHNO 012180170

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing on sealing surfaces; 2. Cyclic pressure fatigue (up to 7500 Psi); 3. Misalignment-induced uneven wear.

1. Ensure proper alignment with liner bore per NOV specs (Document 14P220-MAINT-001); 2. Use API-compliant mud with controlled solids content; 3. Inspect sealing surfaces for scoring monthly.

2

DHNO 012180197

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Thermal stress from extreme fluid temperature swings; 3. Corrosion from aggressive drilling fluid additives.

1. Monitor fluid temperature to avoid thermal shock; 2. Apply anti-corrosion coating to exposed core surfaces; 3. Replace if sealing surfaces show pitting or rust.

3

DHNO 012180196

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Overpressure spikes causing core deformation; 3. Wear from mismatched piston rubber fit.

1. Install pressure relief valves to prevent overpressure; 2. Ensure piston rubber fits snugly (no gaps); 3. Inspect core for deformation quarterly.

4

DHNO 012180254

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Cyclic fatigue from prolonged high-cycle operation; 3. Fluid-induced corrosion of core components.

1. Rotate pistons periodically to distribute wear; 2. Use corrosion inhibitors in aggressive mud; 3. Replace after 1,800 hours of operation (or as needed).

5

DHNO 012180253

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Misalignment causing lateral stress; 3. Wear from damaged liner bores.

1. Inspect liner bores for damage before piston installation; 2. Align pistons with liner axes using precision tools; 3. Re-torque connecting components per NOV guidelines.

6

DHNO 012180338

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Chemical degradation of core coatings; 3. Thermal fatigue from continuous heavy-duty use.

1. Verify fluid additive compatibility with core coatings; 2. Schedule downtime for thermal cooling; 3. Clean core surfaces thoroughly during maintenance.

7

DHNO 012180337

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Overpressure-induced core damage; 3. Wear from piston rubber tearing.

1. Monitor pump pressure for abnormal spikes; 2. Replace piston rubber at first sign of tearing; 3. Inspect core for cracks post-overpressure events.

8

DHNO 012180395

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Corrosion from saltwater (offshore environments); 3. Cyclic pressure fatigue.

1. Use marine-grade anti-corrosion treatments offshore; 2. Flush pistons with fresh water after saltwater use; 3. Inspect for corrosion monthly in offshore settings.

9

DHNO 012180394

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Misalignment causing uneven pressure distribution; 3. Age-related core material fatigue.

1. Align pistons per API Spec 7K Clause 5.4; 2. Replace pistons if core shows signs of fatigue (e.g., microcracks); 3. Maintain uniform torque on connecting parts.

10

DHNO 012180493

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Thermal stress from rapid temperature changes; 3. Wear from contaminated drilling fluid.

1. Avoid sudden fluid temperature adjustments; 2. Use high-efficiency filters to remove debris; 3. Inspect sealing surfaces for contamination-induced wear.

11

DHNO 012180536

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Chemical attack from high-pH mud additives; 3. Core deformation from improper installation.

1. Maintain fluid pH between 8-10; 2. Follow NOV’s installation procedure for piston alignment; 3. Replace if core is deformed or bent.

12

DHNO 012180535

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Cyclic fatigue from high-cycle drilling; 3. Wear from piston rubber misalignment.

1. Replace piston rubber and piston as a matched set; 2. Rotate pistons to distribute wear evenly; 3. Inspect for fatigue every 1,000 hours.

13

DHNO 012180619

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Overpressure spikes causing core damage; 3. Corrosion from aggressive chemical additives.

1. Install advanced pressure monitoring systems; 2. Use compatible chemical additives; 3. Apply anti-corrosion treatments to core surfaces.

14

DHNO 012180618

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Thermal degradation of core coatings; 3. Wear from damaged liner surfaces.

1. Replace damaged liners before installing new pistons; 2. Monitor fluid temperature to protect core coatings; 3. Clean liner bores thoroughly.

15

DHNO 012180685

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Cyclic pressure fatigue; 3. Misalignment-induced lateral wear.

1. Align pistons with precision gauges; 2. Re-torque connecting components quarterly; 3. Inspect for lateral wear during maintenance.

16

DHNO 012180683

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Corrosion from freshwater drilling fluids (mineral deposits); 3. Wear from piston rubber compression set.

1. Flush system to remove mineral deposits; 2. Replace piston rubber before compression set occurs; 3. Use water-based corrosion inhibitors.

17

DHNO 012180725

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

High-strength alloy steel (AISI 4140) core with precision-machined sealing surfaces, compatible with all standard piston rubbers

1. Abrasive mud particle scuffing; 2. Thermal stress from high-temperature drilling fluid; 3. Core damage from foreign object debris (FOD).

1. Install FOD filters to protect pistons; 2. Limit fluid temperature to NOV-recommended levels; 3. Inspect for FOD-induced damage after system upsets.

1

DHNO 1502052

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Compression set from prolonged high-pressure operation; 3. Chemical degradation from aggressive mud additives.

1. Use API-compliant mud with controlled solids; 2. Replace before compression set becomes permanent; 3. Avoid incompatible chemical additives (e.g., strong solvents).

2

DHNO 011102926

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Thermal degradation from extreme temperature swings; 3. Swelling from fluid absorption.

1. Monitor fluid temperature (max 180°F for NBR); 2. Replace if swelling exceeds 6% of original size; 3. Store in dry, cool areas to prevent pre-installation degradation.

3

DHNO 015180102

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical attack from high-pH or solvent-based additives; 2. Thermal stress from prolonged high-temperature use; 3. Abrasive debris scratching.

1. Verify additive compatibility with Viton; 2. Limit fluid temperature to 220°F; 3. Clean piston cores before rubber installation to remove debris.

4

DHNO 1502054

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Overpressure-induced extrusion; 3. Wear from mismatched piston core fit.

1. Ensure rubber fits snugly on piston core; 2. Install pressure relief valves to prevent extrusion; 3. Replace if rubber shows signs of stretching or tearing.

5

DHNO 011102928

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Cyclic fatigue from high-cycle drilling; 3. Age-related material hardening.

1. Replace every 600-800 hours of operation; 2. Rotate piston-rubber sets to distribute wear; 3. Discard rubber if it becomes brittle (no flexibility).

6

DHNO 015180145

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical degradation from aggressive drilling fluids; 2. Thermal fatigue from continuous high-temperature use; 3. Bond failure with piston core.

1. Use Viton-compatible fluids; 2. Schedule downtime for cooling; 3. Inspect bond between rubber and core during maintenance.

7

DHNO 015180144

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Abrasive debris scratching; 2. Overpressure-induced damage; 3. Thermal degradation of rubber compounds.

1. Filter mud to remove fine debris; 2. Monitor pump pressure for spikes; 3. Replace if rubber shows cracks or charring from heat.

8

DHNO 1502056

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Swelling from oil contamination; 3. Wear from liner bore irregularities.

1. Prevent oil contamination in water-based mud; 2. Inspect liner bores for irregularities; 3. Replace rubber if swelling causes binding.

9

DHNO 011103033

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Compression set from improper installation; 3. Thermal stress from rapid temperature changes.

1. Install rubber without overstretching; 2. Avoid sudden fluid temperature adjustments; 3. Replace if rubber fails to rebound after compression.

10

DHNO 015180186

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical attack from solvent-based additives; 2. Abrasive debris embedding; 3. Thermal degradation.

1. Avoid solvent-based additives; 2. Use fine-mesh filters to remove small debris; 3. Monitor fluid temperature to protect rubber integrity.

11

DHNO 015180185

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Abrasive mud particle tearing; 2. Overpressure-induced extrusion; 3. Age-related hardening.

1. Replace every 800-1,000 hours (Viton service life); 2. Install pressure relief valves; 3. Discard if rubber loses flexibility.

12

DHNO 1502058

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Corrosion from saltwater (offshore); 3. Wear from piston core misalignment.

1. Use marine-grade NBR rubber offshore; 2. Align piston cores properly; 3. Flush with fresh water after saltwater use.

13

DHNO 011103132

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Cyclic fatigue from high-cycle operation; 3. Wear from contaminated fluid.

1. Maintain clean drilling fluid; 2. Rotate piston-rubber sets; 3. Replace if rubber shows excessive wear (thickness loss >10%).

14

DHNO 015180228

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical degradation from high-pH mud; 2. Thermal stress; 3. Bond failure with piston core.

1. Maintain fluid pH within recommended range; 2. Limit fluid temperature; 3. Inspect bond during routine maintenance.

15

DHNO 015180227

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Abrasive debris scratching; 2. Overpressure damage; 3. Thermal fatigue.

1. Install debris filters; 2. Monitor pump pressure; 3. Schedule downtime for cooling during heavy use.

16

DHNO 1502060

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Swelling from fluid absorption; 3. Wear from liner bore damage.

1. Replace damaged liners; 2. Monitor rubber swelling; 3. Use compatible drilling fluid.

17

DHNO 011103629

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Compression set; 3. Chemical degradation from additives.

1. Replace before compression set is permanent; 2. Use compatible additives; 3. Inspect for tearing monthly.

18

DHNO 015180269

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical attack from aggressive fluids; 2. Thermal degradation; 3. Abrasive debris damage.

1. Verify fluid compatibility; 2. Limit temperature; 3. Use fine filters to remove debris.

19

DHNO 015180268

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Overpressure-induced extrusion; 2. Cyclic fatigue; 3. Bond failure.

1. Install pressure relief valves; 2. Replace every 800-1,000 hours; 3. Inspect bond with piston core.

20

DHNO 1502061

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Thermal stress; 3. Wear from piston core misalignment.

1. Align piston cores; 2. Avoid temperature swings; 3. Replace if rubber shows uneven wear.

21

DHNO 011103322

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Age-related hardening; 3. Swelling from oil contamination.

1. Replace aged rubber (even if unused); 2. Prevent oil contamination; 3. Store in dry, cool conditions.

22

DHNO 015180285

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical degradation from solvents; 2. Thermal fatigue; 3. Abrasive debris scratching.

1. Avoid solvent exposure; 2. Limit temperature; 3. Clean piston cores before installation.

302

DHNO 015180284

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Overpressure damage; 2. Bond failure; 3. Thermal degradation.

1. Monitor pump pressure; 2. Inspect bond regularly; 3. Schedule cooling downtime.

24

DHNO 1502062

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Compression set; 3. Wear from liner bore irregularities.

1. Replace before compression set; 2. Inspect liner bores; 3. Use compatible mud.

25

DHNO 011103827

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Cyclic fatigue; 3. Chemical degradation from additives.

1. Rotate piston-rubber sets; 2. Use compatible additives; 3. Replace if tearing occurs.

26

DHNO 015180301

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical attack from high-pH mud; 2. Abrasive debris damage; 3. Thermal stress.

1. Maintain fluid pH; 2. Filter debris; 3. Limit temperature.

27

DHNO 015180300

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Overpressure extrusion; 2. Bond failure; 3. Age-related hardening.

1. Install pressure relief valves; 2. Inspect bond; 3. Replace if flexible is lost.

28

DHNO 1502064

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Swelling; 3. Wear from piston core misalignment.

1. Align piston cores; 2. Monitor swelling; 3. Replace if needed.

29

DHNO 011103926

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Nitrile Butadiene Rubber (NBR), 70-75 durometer, resistant to oil, water-based mud, and moderate abrasion

1. Abrasive mud particle tearing; 2. Thermal stress; 3. Compression set.

1. Avoid temperature swings; 2. Replace before compression set; 3. Use compatible mud.

30

DHNO 015180343

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical degradation from solvents; 2. Abrasive debris scratching; 3. Thermal fatigue.

1. Avoid solvents; 2. Filter debris; 3. Limit temperature.

31

DHNO 015180342

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Overpressure damage; 2. Bond failure; 3. Cyclic fatigue.

1. Monitor pressure; 2. Inspect bond; 3. Replace regularly.

32

DHNO 015180369

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Chemical attack from aggressive fluids; 2. Thermal degradation; 3. Abrasive debris damage.

1. Verify fluid compatibility; 2. Limit temperature; 3. Clean piston cores.

33

DHNO 015180367

Piston Rubber for NOV 14-P-220 Triplex Mud Pump

Fluorocarbon Rubber (Viton), 75-80 durometer, resistant to high temps, chemicals, and aggressive mud

1. Compression set; 2. Bond failure; 3. Overpressure extrusion.

1. Replace before compression set; 2. Inspect bond; 3. Install pressure relief valves.

1

How do I choose between NBR and Viton piston rubbers for NOV 14-P-220 pumps?

NBR (e.g., DHNO 1502052) suits standard oil/water-based mud and moderate temps. Viton (e.g., DHNO 015180102) is for aggressive chemicals, high temps (up to 220°F), and harsh mud—match to your drilling fluid type and operating conditions.

2

Should I replace pistons and piston rubbers together for NOV 14-P-220 pumps?

Yes, always replace them as a matched set. Worn piston cores can damage new rubbers (e.g., scoring), and old rubbers may not seal properly with new cores—this ensures optimal performance and extends service life, complying with NOV’s guidelines.

3

What’s the typical service life for these pistons and piston rubbers?

Pistons last 1,800-2,000 hours; NBR rubbers 600-800 hours; Viton rubbers 800-1,000 hours. Shorten intervals for abrasive mud or high-cycle operations—inspect monthly and replace at first sign of wear (scoring, tearing, swelling).