How to Power Wash a Decanter Centrifuge

Is washing my centrifuge with a high-pressure power washer okay? The short answer is yes. In fact, proper power washing should be part of your regular decanter centrifuge cleaning schedule, but only if you follow the proper precautions to protect key components from water damage.

In the above video, we walk you through the best practices for power washing your decanter centrifuge, ensuring it remains clean and operates at peak performance.

Begin with Safety in Mind

Safety is the top priority before starting any maintenance or cleaning procedures. Always follow these steps: 

1. Lockout/Tagout (LOTO): Before beginning, ensure the machine is fully de-energized. 
   This prevents accidental startup, which could cause injury.
2. Wear Proper PPE: Safety glasses, gloves, and protective clothing should be
   worn to prevent exposure to chemicals and debris during cleaning.

Protect Critical Components Before Pressure Washing

Although power washing is an effective cleaning method, improper use can lead to costly damage. A decanter centrifuge's main motor and main bearings must be shielded from water exposure to prevent rust, corrosion and contamination. 

Taking the following precautions will help you avoid unnecessary downtime or repairs.

• Cover the Main Motor and Bearings: Use plastic sheeting or waterproof covers to keep water away from these sensitive components.
• Protect Electrical Connections: Junction boxes, cable connectors and other electrical components should be sealed off to prevent moisture-related failures.

Learn more about maintaining differential speed in our Comprehensive Guide to Decanter Centrifuge Operation.

Proper Decanter Centrifuge Pressure Washing Techniques 

1. Use an Appropriate Pressure Setting:
   Avoid excessive pressure that could damage seals or coatings
2. Keep the Spray Angle Controlled: 
   Aim the spray away from sealed areas and electrical connections.
3. Use Approved Cleaning Solutions: 
   Check your user manual or contact Centrisys/CNP to ensure you're using recommended detergents that won’t harm the machine’s components.

After washing, let the decanter centrifuge dry completely before removing the protective coverings and restarting operations.

This blog covers everything you need to know about cleaning a decanter centrifuge.

Preventative Storage Maintenance After Cleaning

Proper lubrication is key to preventing bearing failure if your centrifuge is put into storage after cleaning. Centrisys/CNP experts recommend the following:

• Run the centrifuge a few minutes after cleaning to distribute the lubricant evenly.
• If storing long-term, manually turn the rotating assembly at least once a week to prevent bearings from seizing.

These simple steps will ensure that your machine remains in good condition even if it is taken out of service for extended periods. 

Check out this blog to learn how to prevent bearing damage while storing your decanter centrifuge.

Pressure Washing a Decanter Centrifuge FAQs:

Q: Can I use any pressure washer to clean my centrifuge?

A: Yes, but use moderate pressure and avoid direct high-pressure contact with seals, bearings, and electrical components.

Q: What cleaning solutions are safe to use?

A: Use only manufacturer-approved cleaning agents to avoid damaging coatings and components. For specific recommendations, contact Centrisys/CNP.

Q: How often should I clean my decanter centrifuge?

A: Cleaning frequency depends on usage and material processed. Regularly inspecting your decanter centrifuge will help determine when a wash is needed.

Q: What should I do if water gets into the motor or bearings?

A: If contamination occurs, contact Centrisys/CNP service immediately at 262-425-9704 for guidance on drying and re-lubrication procedures.

Q: How can I tell if my centrifuge needs cleaning?

 A: The most common signs that your centrifuge needs cleaning are visual—such as material buildup on the exterior. Regular inspections and sticking to your maintenance schedule will help you determine the ideal cleaning frequency for your specific operation.

For more information on how to keep your decanter centrifuge in top condition, visit Centrisys/CNP, contact the experts at Centrisys/CNP online or call 262-425-9704.