TPD600 2.75" Plunger Pump Spare Parts

1

Plunger

P60-27-006

High-strength alloy steel (38CrMoAlA) with hard chrome plating

1. High-pressure medium scouring and abrasive particle friction; 2. Improper lubrication leading to dry friction; 3. Medium corrosion (acid/alkali components).

1. Ensure the medium is filtered (filter precision ≤10μm) to remove abrasive particles; 2. Maintain proper lubrication oil level and use compatible hydraulic oil; 3. Avoid long-term operation beyond rated pressure (comply with API Spec 7K standards).

2

Bolt as-plunger retaining

P60-34-015

High-strength carbon steel (8.8-grade) with galvanized anti-corrosion treatment

1. Vibration during pump operation leading to loosening and fatigue fracture; 2. Corrosion from humid or chemical environments; 3. Over-tightening during installation causing thread damage.

1. Tighten according to the specified torque (25-30 N·m) and check regularly; 2. Apply anti-corrosion grease in humid/chemical scenarios; 3. Use a torque wrench for installation to avoid over-tightening.

1

Oil seal assembly

P60-27-818

Nitrile rubber (NBR) seal with carbon steel skeleton

1. High-temperature aging (exceeding 80℃ for long periods); 2. Abrasive particles in oil scratching the seal lip; 3. Improper installation causing lip deformation.

1. Ensure oil temperature stays within 0-80℃; 2. Replace oil filter regularly to keep oil clean; 3. Use a installation tool to avoid direct force on the seal lip.

2

Combined oil seal assembly

P60-27-848

Dual-layer NBR seal with stainless steel skeleton and teflon (PTFE) lip

1. Medium corrosion (e.g., acidic hydraulic oil); 2. Excessive shaft runout causing uneven lip wear; 3. Lack of lubrication between seal lip and shaft.

1. Use hydraulic oil compatible with NBR/PTFE; 2. Check shaft runout (≤0.05mm) before installation; 3. Apply a thin layer of lubricating oil to the seal lip before assembly.

3

O-ring, neoprene

000P569146

Neoprene (CR) elastomer

1. Exposure to ozone or sunlight causing aging and cracking; 2. Chemical corrosion from mineral oil or solvents; 3. Over-compression leading to permanent deformation.

1. Store in a cool, dark, ozone-free environment; 2. Avoid contact with incompatible chemicals (e.g., strong solvents); 3. Ensure compression ratio is 15-20% during installation.

4

oil seal

P60-30-105

Fluorine rubber (FKM) with carbon steel skeleton

1. Contamination from metal particles in oil; 2. High-pressure extrusion causing lip damage; 3. Thermal fatigue from frequent temperature fluctuations.

1. Clean the shaft surface thoroughly before installation; 2. Operate the pump within rated pressure (avoid pressure spikes); 3. Avoid rapid temperature changes (≤5℃/min).

5

D-ring, suction cover seal

7000010735

Nitrile rubber (NBR) with anti-aging additive

1. Wear from frequent disassembly of the suction cover; 2. Medium leakage causing corrosion; 3. Hardening due to low-temperature operation (below 0℃).

1. Use a plastic tool to disassemble the suction cover to avoid scratching the D-ring; 2. Replace immediately if medium leakage is found; 3. Preheat the seal to 10-20℃ before installation in low-temperature environments.

6

O-ring, NBR

000P569244

Nitrile rubber (NBR) (Shore hardness 70±5)

1. Oil aging (oxidation of hydraulic oil); 2. Abrasive particles in the sealing groove; 3. Improper installation causing twisting.

1. Replace hydraulic oil every 2000 working hours; 2. Clean the sealing groove with a soft brush before installation; 3. Ensure the O-ring is not twisted when placing it in the groove.

7

O-ring, nitrile rubber

000P569235

Nitrile rubber (NBR) with oil-resistant coating

1. Long-term immersion in high-viscosity hydraulic oil; 2. Friction with the sealing surface during pump operation; 3. Corrosion from water in oil (emulsification).

1. Use hydraulic oil with viscosity 22-46 cSt at 40℃; 2. Check the sealing surface for burrs and grind if necessary; 3. Drain water from the oil tank regularly to avoid emulsification.

1

600 pump packing

P8T0005275

Aramid fiber with PTFE coating (oil-impregnated)

1. High-pressure medium scouring; 2. Abrasive particles in the medium causing fiber breakage; 3. Over-tightening leading to excessive friction and overheating.

1. Adjust the packing nut to allow a small amount of leakage (1-2 drops/min) for lubrication; 2. Filter the medium to remove particles larger than 5μm; 3. Check temperature regularly (avoid exceeding 70℃).

2

Packing assembly

P8AS007275

Multi-layer aramid fiber packing with stainless steel retaining ring

1. Uneven tightening causing partial wear; 2. Plunger surface scratches leading to packing damage; 3. Lack of lubrication causing dry friction.

1. Tighten the packing nut evenly in small increments; 2. Inspect the plunger surface for scratches (polish if found); 3. Add lubricating oil to the packing chamber every 500 working hours.

3

Packing nut

P60-27-502

Carbon steel (45#) with nickel plating for corrosion resistance

1. Vibration leading to loosening and thread wear; 2. Corrosion from humid environments; 3. Improper tool use causing hexagonal deformation.

1. Check and retighten every 100 working hours; 2. Apply anti-corrosion oil to the thread; 3. Use a socket wrench (matching size) to avoid deformation.

1

Versailles

P60-30-008

High-strength alloy steel (20CrMnTi) with carburizing and quenching treatment

1. Fatigue wear from frequent pressure changes; 2. Abrasive particles in the medium scratching the surface; 3. Improper installation causing misalignment.

1. Operate the pump within stable pressure range (avoid frequent pressure spikes); 2. Maintain medium cleanliness; 3. Check alignment during installation (coaxiality ≤0.1mm).

2

Valve assembly

P60-30-600

Stainless steel (304) valve body with ceramic valve core

1. High-pressure medium impact causing valve core wear; 2. Contamination leading to valve jamming and seal damage; 3. Thermal expansion mismatch in high-temperature environments.

1. Avoid sudden pressure increases (≤5MPa/s); 2. Clean the valve assembly every 1500 working hours; 3. Ensure operating temperature is within 0-100℃.

3

Spring

P60-30-004

Stainless steel (302) spring wire with heat treatment

1. Fatigue fracture from frequent compression (exceeding 10^6 cycles); 2. Corrosion from humid/chemical media; 3. Over-compression causing permanent deformation.

1. Replace springs every 2000 working hours (or 10^6 cycles); 2. Use anti-corrosion coating in chemical scenarios; 3. Ensure spring compression does not exceed 70% of its free length.

4

Spring

P60-30-004

Stainless steel (302) spring wire with heat treatment

1. Fatigue fracture from frequent compression (exceeding 10^6 cycles); 2. Corrosion from humid/chemical media; 3. Over-compression causing permanent deformation.

1. Replace springs every 2000 working hours (or 10^6 cycles); 2. Use anti-corrosion coating in chemical scenarios; 3. Ensure spring compression does not exceed 70% of its free length.

1

Hexagon socket head plug, carbon steel

X26-02-009

Carbon steel (Q235) with thread sealant coating

1. Thread wear from frequent disassembly; 2. Corrosion from oil or humid environments; 3. Over-tightening causing thread stripping.

1. Use a hexagon socket wrench matching the plug size; 2. Reapply thread sealant after each disassembly; 3. Tighten to specified torque (15-20 N·m).

2

Flange seal

P60-34-206

Non-asbestos fiber with nitrile rubber core

1. Uneven flange pressure causing partial wear; 2. High-temperature aging; 3. Medium leakage causing corrosion of the seal material.

1. Tighten flange bolts evenly in a crisscross pattern; 2. Replace if operating temperature exceeds 100℃ for long periods; 3. Clean the flange surface before installation to remove debris.

3

Sealing washer

P60-34-104

Copper (H62) with anti-corrosion plating

1. Over-compression causing deformation; 2. Corrosion from chemical media; 3. Scratches on the sealing surface leading to leakage.

1. Ensure compression ratio is 10-15%; 2. Avoid use in strong acid/alkali media (replace with PTFE washers if needed); 3. Check the washer surface for scratches before installation.

How to confirm that your spare parts are fully compatible with my TPD600 2.75" plunger pump?

All our spare parts are manufactured according to the original TPD600 2.75" pump specifications, with part numbers exactly matching those you provided (no modifications). We also provide dimensional drawings and material certificates for verification. Additionally, our parts comply with API Spec 7K and GB/T 3216-2016 standards, ensuring 100% fit and stable operation. You can also send us your pump serial number for further confirmation.

What is the main difference between your genuine spare parts and ordinary aftermarket parts, and why should I choose yours?

The core difference is quality and durability: Our parts use high-grade materials (e.g., 38CrMoAlA for plungers, aramid fiber for packing) and precision processing, meeting industrial standards. Ordinary parts use inferior materials (e.g., ordinary carbon steel without hard chrome plating) that wear quickly, leading to frequent replacements, pump damage, and increased downtime. Choosing our genuine parts reduces maintenance costs by 30% on average and ensures long-term stable pump operation.

How to extend the service life of sealing components (oil seals, O-rings) in TPD600 2.75" pumps?

Three key steps: 1. Keep the hydraulic oil clean (replace filters every 1000 working hours, filter precision ≤10μm) to avoid abrasive particles scratching seals; 2. Operate within the recommended temperature range (0-80℃) to prevent aging; 3. Install correctly (use special tools, avoid twisting O-rings/oil seals, apply lubricating oil to seal lips). Additionally, replace sealing components every 1500-2000 working hours (or earlier if leakage is found) to avoid secondary damage to other pump parts.