Maintenance Tips for Progressive Cavity Pumps: On-site Measures for Optimal Maintenance

A progressing cavity pump is a type of positive displacement pump that uses a worm-like, helical rotor and stator combination to create a momentary pocket to pull fluid into. The fluid then advances through the pump progressively and is discharged out of the discharge port. 

Progressive cavity pumps offer great precision in metering and have a diversity of applications across the chemical, oil and gas, fertilizer, cattle feed, food and beverages, and many other industries. Progressive cavity dosing pumps are designed to handle difficult pumping applications where conventional centrifugal pumps may not be as effective. 

Hydro Prokav Pumps is a leading manufacturer of progressive cavity pumps. Their rugged designs are made to easily handle various fluids, from thick, viscous fluids to shear-sensitive products such as fruits or berries. This guide outlines the operational basics of progressive cavity pump repair and maintenance tips to help extend their life and optimize performance.

Why Choose Hydro Prokav Progressive Cavity Pumps?

There are several benefits to choosing Hydro Prokav Progressive Cavity Pumps, including, but not limited to: 

• Engineered for abrasive and high-viscosity fluids handling with minimum maintenance
• With their low internal pump velocity, they operate well even in poor suction conditions, reducing wear in abrasive applications
• Offers reliability and a smooth process of continuous fluid transfer from suction to discharge
• Maintains a steady flow for any viscosity changes, making them suitable for different industrial applications.

Importance of Progressive Cavity Pump Maintenance

Progressive cavity pump maintenance ensures the long-term reliability and operational efficiency of the pump. Hydro Prokav's pumps are engineered with advanced materials to promise durability in the harshest of industrial environments. When paired with a good maintenance routine, they offer continuous operation without any time and cost spent on troubleshooting repairs.

Seven Tips For Progressive Cavity Pump Maintenance

Want your progressive cavity pump to function well and offer maximum efficiency in the long run? Make sure you’re following these seven tips:

Tip 1: Choose the right pump
There are different progressive cavity dosing pumps for different needs. For example, Progressive Cavity KX-F Pumps are food grade progressive cavity pumps, whereas, KYM SERIES are abrasion-resistant progressive cavity pumps. One is specifically for the F&B industry, while the other can deal with aggressive chemicals.

Tip 2: Select sizing right
Sizing progressive cavity pumps right is a must, especially for small progressive cavity pumps and low-volume progressive cavity pumps, where exact fit can make a big difference. Hydro Prokav guides its customers in choosing the size and type of pumps relevant to the application. 

Tip 3: Take care of the stator and rotor
Stators usually wear faster and require regular checks on their condition. You should replace the stator if they are worn out or damaged to ensure it doesn’t stop the pump’s operations. Maintain good performance by replacing the rotor with every two stator replacements.

Tip 4: Schedule regular inspections
Monitor wear at the manufacturer's suggested intervals to avoid premature rotor replacement. Rotors that show minor wear are often re-chromed rather than replaced.

Tip 5: Timely lubrication
Use castor oil or other lubricant during rotor installation to avoid stator swelling. The lubricant you use must meet industry standards, particularly in food-grade or pharmaceutical applications.

Tip 6: Regular cleaning
To clean the pump from contaminants that may have entered: 

1. Cover the suction and discharge holes
2. Flush the pump while it is in place

Tip 7: Protective measures
Protective covers should be placed on spare stators to prevent degradation. Replacement components, such as rotors and stators from the same manufacturer, should be kept handy. 

Conclusion

Progressive cavity pumps are multifaceted products. To make them work effectively for a long time, one needs to understand the way they operate and the maintenance they need. Hydro Prokav Pumps offers a wide range of pumps designed for the widest ranges of applications and makes sure that each pump performs exceptionally with proper maintenance. With these strategies of maintenance and with specific products developed for different applications, industries can ensure superior performance, reliability, and efficiency in their fluid handling process.