INTERMEDIATE ROD LSPE 107.29.30.08  LSPE 107.29.30.08

1

LINER, CERAMIC 6-1/2″ FOR EMSCO FB1300

MIS

7499650

Ceramic

Abrasion from solid particles in drilling mud and uneven pressure distribution during long-term operation.

Regularly filter drilling mud to remove large particles; check liner fitment weekly to avoid loose installation causing eccentric wear.

2

6″ ZIRCONIA LINER (CERAMIC LINER) F/ NAT 14P220/W2214/W2215

Not Specified

Not Specified

Zirconia Ceramic

Thermal shock from rapid temperature changes between mud and equipment, plus chemical corrosion from acidic/alkaline mud.

Preheat liner to 50-80℃ before installation; avoid sudden mud temperature fluctuations exceeding 30℃ within 1 hour.

3

LINER, MUD PUMP, 6-1/2 IN ZIRCONIA CERAMIC

SOUTHWEST

6380ZIR7

Zirconia Ceramic

Mechanical impact from foreign objects (e.g., metal scraps) entering the pump cylinder and repeated piston reciprocation friction.

Install a high-precision filter at the pump inlet; inspect piston seal integrity monthly to prevent metal-to-liner contact.

4

LINER, 6″ SUPREME, HP STYLE, TRIPLEX PUMP 12P160

MIS / SW

05466600HP / TS025960HP / 1376G5

High-Strength Alloy Steel

High-pressure fatigue and cavitation erosion caused by unstable pump discharge pressure and insufficient mud supply.

Maintain stable discharge pressure within 7500 PSI; ensure continuous mud supply to avoid cylinder cavitation.

5

LINER, 6-1/2″, SUPREME, HP STYLE, FOR 12P160 MUD PUMP, NATIONAL OILWELL, MISSION

NOV / SW

05466650HP / 1376G7

High-Strength Alloy Steel

Corrosion from sulfur-containing drilling mud and improper liner lubrication leading to dry friction.

Use anti-corrosion lubricant compatible with sulfur-containing mud; clean liner inner wall after each drilling shift.

6

7″ STEEL LINER F/ NAT 12P160

Not Specified

1376G9

Carbon Steel Alloy

Wear due to prolonged operation with high-viscosity mud and improper torque during installation causing liner deformation.

Control mud viscosity within 30-50 mPa·s; torque liner bolts to 550-600 FT-LB as per API 8 standards.

7

LINER, 7″ 12-P-160 MUD PUMP

SW

1376ZIR9

Zirconia Ceramic

Micro-cracks caused by excessive pump pressure (exceeding rated limit) and liner edge chipping from piston misalignment.

Never exceed pump rated pressure (12P160: 7500 PSI); align piston with liner axis during maintenance.

8

LINER, 5-1/2″

EMS

05499550HP

Alloy Steel

Erosion from high-velocity mud flow and metal fatigue due to frequent pump start-stop cycles.

Reduce frequent start-stop operations; install a flow stabilizer to minimize mud velocity impact on liner walls.

9

5-1/2″ STEEL LINER F/ NAT 14P220/W2214/W2215

Not Specified

Not Specified

Carbon Steel Alloy

Rust and corrosion from contact with water-based mud and improper storage (moist environment).

Store spare liners in a dry, ventilated area with anti-rust oil coating; inspect for rust before installation.

10

6″ STEEL LINER F/ NAT 14P220/W2214/W2215

Not Specified

Not Specified

Carbon Steel Alloy

Wear caused by misalignment between liner and valve seat, leading to uneven mud flow and local friction.

Check and adjust liner-valve seat alignment quarterly; replace worn valve seats promptly to avoid liner damage.

11

LINER, 5″ FOR MUD PUMP F1300 TRIPLEX PUMP

LSPE

107.35.110.29

Alloy Steel

Abrasion from solid particles in unfiltered mud and thermal fatigue from long-term high-temperature operation.

Use dual-stage filtration for drilling mud; monitor equipment temperature and stop operation if it exceeds 120℃.

1

ROD, PISTON MUD PUMP TRIPLEX NATIONAL

MIS

1292147

High-Strength Alloy Steel

Bending fatigue from uneven piston force and corrosion from drilling mud seepage at the seal.

Check piston rod straightness monthly; replace worn piston seals promptly to prevent mud seepage and corrosion.

2

RUBBERS REPLACEMENT, PISTON SUPREME SIZE 6″

NAT

15180268

High-Wear Resistant Rubber

Abrasion from liner inner wall and chemical degradation from harsh drilling mud additives.

Use mud additives compatible with piston rubber; replace rubber sleeves every 500 operating hours or if cracks are found.

3

P/N 012180535, 6 1/2″ piston compelete for Mud pump 12-P-160

Not Specified

012180535

Alloy Steel (Rod) + Urethane (Seal)

Seal damage from foreign particles and piston rod misalignment causing uneven pressure on the seal.

Clean liner and piston before installation; ensure piston rod is aligned with the cylinder axis.

4

PISTON, MUD PUMP DUAL DURO 6-1/2 IN WITH 1-5/8 IN BORE WITH 1-1/2 IN BUSHING

FSPD

924046414

Dual-Duro Rubber + Alloy Steel Bushing

Bushing wear from insufficient lubrication and rubber degradation from high-temperature mud.

Lubricate piston bushing with high-temperature resistant lubricant; limit mud temperature below 100℃.

5

P/N 012180337, 5 1/2″ mud pump piston 12-P-160

Not Specified

012180337

Alloy Steel (Rod) + Nitrile Rubber (Seal)

Seal leakage from improper installation torque and wear from liner eccentricity.

Torque piston installation bolts to 450-500 FT-LB; check liner roundness before piston installation.

1

SPRING, VALVE

SOUTHWEST

SW5710-110

High-Tension Alloy Steel

Fatigue failure from repeated compression-relaxation cycles and corrosion from mud seepage.

Inspect valve spring elasticity quarterly; replace if spring deformation exceeds 0.5mm; keep valve chamber clean to avoid mud buildup.

2

P/N 1560702, Valve spring

Not Specified

1560702

High-Tension Alloy Steel

Overloading from excessive pump pressure and thermal fatigue from high-temperature mud vapor.

Maintain pump pressure within rated limits; install a vapor release valve to reduce valve chamber temperature.

3

SEAL, O-RING SEALING FOR PULLER VALVE SEAT NO. 1290259

SW

SWTM1717

Nitrile Rubber (NBR)

Abrasion from valve seat movement and chemical corrosion from drilling mud additives.

Replace O-ring every time the valve seat is disassembled; use compatible grease to reduce friction during installation.

4

P/N 1292141, INSERT,VALVE Guide

Not Specified

1292141

Bronze Alloy

Wear from valve stem movement and lack of lubrication, leading to valve jamming.

Lubricate valve guide with high-temperature grease monthly; check valve stem clearance to avoid excessive wear.

5

P/N 1560985, G2 Valve complete (API7) with polyurethane Disc for 12-P-160 mud pump

Not Specified

1560985

Alloy Steel (Body) + Polyurethane (Disc)

Disc wear from mud particle impact and valve seat misalignment causing uneven contact.

Inspect valve disc for cracks monthly; align valve seat with disc according to API 7 standard specifications.

6

RING : SUCTION SEAL BACK UP

Weatherford

1249975

Urethane

Deformation from high suction pressure and chemical degradation from acidic mud.

Monitor suction pressure to avoid exceeding 50 PSI; use anti-acid additives for acidic drilling mud.

1

HEAD: PULLER, SEAT, SPLIT JAW, API 8

SOUTHWEST OILFIELD

SWTM48-SN

High-Strength Alloy Steel

Jaw wear from excessive pulling force and impact damage during on-site handling.

Apply pulling force gradually (not exceeding 1000 FT-LB); store puller head in a protective case to avoid impact.

2

STEM, 2IN CENTER 36 IN LONG FOR HYD JACK SEAT PULLER ASSY

SW

SWTM1702

Alloy Steel

Bending from uneven pulling force and corrosion from on-site moisture and mud splashes.

Ensure pulling force is evenly distributed during use; clean and coat with anti-rust oil after each use.

3

PULLER, VALVE SEAT HYDRAULIC VALVE SEAT LIFTING TOOL

BOMCO

AH130101160600

Alloy Steel + Hydraulic Components

Hydraulic seal leakage from contaminated hydraulic oil and mechanical wear of lifting components.

Use clean hydraulic oil (ISO VG 46); inspect hydraulic seals before each use and replace if damaged.

4

P/N M1098, Split Jaw Puller Head for Valve Seat for Mud pump 12-P-160

Not Specified

M1098

Alloy Steel

Jaw deformation from overloading and wear from repeated contact with valve seats.

Do not use the puller for valve seats larger than its rated size; inspect jaw shape after 10 uses.

1

SUCTION MODULE STUDDED ONLY SW STYLE 7500 PSI F/ NAT 14P220

Not Specified

Not Specified

Carbon Steel Alloy

Seal leakage from stud loosening and corrosion from mud contact at flange connections.

Torque studs to 650 FT-LB quarterly; use flange sealant compatible with drilling mud.

2

DISCHARGE MODULE (STUDDED ONLY)

SOUTHWEST

8476-51D

Alloy Steel

Fatigue damage from high discharge pressure and erosion from high-velocity mud flow.

Maintain discharge pressure within 7500 PSI; inspect module inner wall for erosion every 6 months.

3

SUCTION MODULE (STUDDED ONLY)

SOUTHWEST

8476-52S

Alloy Steel

Clogging and corrosion from sediment buildup in suction lines and moisture exposure.

Clean suction lines weekly to remove sediment; coat module exterior with anti-rust paint annually.

4

GASKET, SUCTION MANIFOLD

SW

AJO419R

Compressed Fiber + Rubber

Deformation from uneven flange pressure and chemical degradation from drilling mud.

Ensure flange surfaces are clean and flat before installation; torque flange bolts evenly.

5

SEAL, SPACER DISCHARGE FLANGE SW

SW

29763

Urethane

Wear from flange movement and high-temperature mud vapor causing material hardening.

Inspect seal for hardening or cracks monthly; replace if surface hardness exceeds 80 Shore A.

6

SR, TO COVER COST OF REPAIR & RETURN DISCHARGE MODULE FOR MUD PUMP

Not Specified

Not Specified

Service (No Physical Material)

N/A (Service Item)

Ensure discharge module is properly cleaned and packaged before sending for repair to avoid additional damage.

1

INTERMEDIATE ROD LSPE 107.29.30.08

LSPE

107.29.30.08

High-Strength Alloy Steel

Bending fatigue from uneven piston load and corrosion from mud splashes and moisture.

Check rod straightness quarterly; clean and lubricate rod surface after each drilling shift to prevent corrosion.

2

INTERMEDIATE ROD LSPE107.29.30.08

LSPE

107.29.30.08

High-Strength Alloy Steel

Same as above: bending fatigue and corrosion.

Same as above: regular straightness check and surface maintenance.

3

CROSSHEAD

NOV

6316-0022-00

Alloy Steel + Bronze Bushings

Bushing wear from insufficient lubrication and crosshead misalignment causing uneven force.

Lubricate crosshead bushings with high-pressure lubricant weekly; adjust crosshead alignment according to pump manual.

4

GUIDE ASSEMPLY, UPPER CROSSHEAD

NOV

6316068700

Alloy Steel + Composite Guide Material

Guide wear from crosshead movement and contamination from mud and debris entering the guide chamber.

Clean guide chamber monthly to remove debris; inspect guide surface for wear and replace if thickness decreases by 1mm.

1

SEAL LSPE107.29.110.18

LSPE

107.29.110.18

Nitrile Rubber (NBR)

Abrasion from component movement and chemical degradation from harsh mud additives.

Replace seal annually or if leakage is detected; use compatible cleaning agents to avoid seal damage during maintenance.

2

SEAL LSPE107.29.110.17

LSPE

107.29.110.17

Nitrile Rubber (NBR)

Same as above: abrasion and chemical degradation.

Same as above: regular replacement and compatible cleaning agents.

3

GASKET, LINER 6 IN

MIS

7923261

Compressed Fiber

Deformation from high cylinder pressure and heat degradation from long-term operation.

Replace gasket every time the liner is removed; ensure liner and gasket surfaces are clean and dry before installation.

4

GASKET, LINER 6″,URETHANE

SOUTHWEST / NOV

29305U / 7211004

Urethane

Hardening from high temperature and wear from liner movement.

Store gaskets in a cool, dry place (below 25℃); replace if gasket hardness exceeds 75 Shore A.

5

O-RING 190 X 3.55 (GB3452.1)

BOMCO

530301011900035000

Fluororubber (FKM)

Abrasion from component friction and chemical corrosion from aggressive mud additives.

Check O-ring for cracks or tears before installation; use FKM-compatible lubricant to reduce friction.

6

R44 SS316 RING JOINT GASKET

Not Specified

R44SS316

Stainless Steel 316

Corrosion from saltwater-based mud and deformation from improper flange torque.

Use in saltwater environments only with proper anti-corrosion treatment; torque flanges to API 6A standards.

1

BUSHING,LINER;STUD W/ NUT

SOUTHWEST OILFIELD PRODUCTS INC.

SW-4018-62

Alloy Steel (Stud/Nut) + Bronze (Bushing)

Thread wear from repeated installation/removal and corrosion from mud contact.

Use thread lubricant during installation; avoid over-torquing (follow manufacturer’s torque specs).

2

CAPSCREW, F. H.

SW

401698

Alloy Steel

Fatigue failure from equipment vibration and corrosion from on-site moisture.

Check screw tightness monthly; replace screws if thread damage or corrosion is found.

3

VALVE COVER STUD (WITH SW PART HHN1500-6 1-1/2″-6 HEAVY HEX NUT)

SOUTHWEST

4015-57

High-Strength Alloy Steel

Thread stripping from over-torquing and corrosion from mud vapor.

Torque nuts to 500-550 FT-LB; install a valve cover gasket to prevent mud vapor contact with studs.

4

PIN

PQO

30000700

Alloy Steel

Wear from component movement and corrosion from moisture and mud.

Lubricate pin with anti-corrosion grease monthly; replace if pin diameter decreases by 0.3mm.

1

SPLASH GUARD

SOUTHWEST

80491292

High-Impact Plastic

Cracking from impact damage during maintenance and UV degradation from outdoor exposure.

Handle with care during installation/removal; store spare guards in a shaded area to avoid UV exposure.

2

WRENCH, TORQUE MICROMETER 1 IN DRIVE 140 FT-LB-700 FT-LB

PROTO / GRAINGER

J6022B / 426F19

Alloy Steel + Precision Measuring Components

Calibration drift from rough handling and mechanical wear of drive components.

Calibrate torque wrench every 6 months; store in a protective case to avoid impact damage.

3

FLANGE, THREADED VALVE COVER SOUTHWEST

SW

4476

Alloy Steel

Thread wear from repeated installation/removal and corrosion from mud contact.

Use thread sealant during installation; inspect threads for damage before each use.

4

LOCKING WEDGE ASSEMBLY (CONSIST OF 6-WEDGES AND 1-SPRING)

SOUTHWEST

80971292

Alloy Steel (Wedges) + High-Tension Steel (Spring)

Wedge wear from locking force and spring fatigue from repeated compression.

Inspect wedge surfaces for wear quarterly; replace spring if deformation is detected.

5

PLUG,CYLINDER HEAD, AT DRAWING NO. 107.29.110.00

LSPE

ENP000017G108G

Alloy Steel

Corrosion from mud contact and thread wear from repeated installation/removal.

Coat plug threads with anti-corrosion grease before installation; replace if threads are damaged.

1

How often should mud pump liners be replaced to ensure optimal performance?

Replacement frequency depends on liner material and operation conditions: ceramic/zirconia liners (6-12 months or 1000-1500 operating hours); steel liners (3-6 months or 500-800 operating hours). Replace immediately if cracks, excessive wear (wall thickness reduction >1mm), or leakage is detected.

2

What is the difference between HP-style and standard liners for 12P160 mud pumps?

The core difference between HP-style (High-Pressure) liners and standard liners for 12P160 mud pumps lies in their pressure-bearing capacity, structural design, and application scenarios. HP-style liners (e.g., LINER, 6″ SUPREME, HP STYLE with P/N 05466600HP) are specially designed for high-pressure drilling operations, with a reinforced cylinder wall structure and improved fitment precision, capable of withstanding the maximum rated pressure of 12P160 mud pumps (7500 PSI) for long periods without deformation or leakage. They are typically made of high-strength alloy steel or zirconia ceramic with enhanced wear and corrosion resistance, suitable for harsh working conditions such as deep-well drilling with high mud pressure. In contrast, standard liners have a conventional wall thickness and structural design, with a lower pressure-bearing limit (usually 5000-6000 PSI), and are more suitable for medium-pressure drilling scenarios. Additionally, HP-style liners adopt a precision-machined inner surface to reduce friction with pistons, extending service life by 30%-50% compared to standard liners. When selecting, it is necessary to match the liner type with the actual drilling pressure requirements to avoid equipment damage caused by improper selection.