Protecting a centrifugal pump from cavitation with a BT-Maric constant flow valve

Case Study – Protecting Centrifugal Pumps

Background

When a centrifugal pump operates beyond the Best Efficiency Point (BEP) on its performance curve—typically to the right-hand side—cavitation can occur. This may lead to shaft deflection, excessive seal and bearing wear, and a noticeable drop in pump efficiency. The result is increased power consumption, risk of pump tripping, and reduced equipment lifespan.

Solution

A tamper-proof and reliable solution to prevent centrifugal pumps from operating off-curve is to install a BT-Maric Constant Flow Valve, type Wafer, close to the pump discharge.

By maintaining a pre-set, constant flow rate, the valve ensures the pump operates within its optimal range—protecting mechanical components, improving energy efficiency, and reducing unplanned maintenance or downtime.

Benefits of Installing BT-Maric Flow Control Valves

1. Non-adjustable for system protection

The valves are factory-calibrated to a fixed flow rate and cannot be adjusted, preventing pump operators from unintentionally increasing flow—such as by opening a throttling valve—which can lead to pump damage and system inefficiency.

2. Maintenance-free and highly reliable

BT-Maric valves are self-cleaning and built to operate without the need for maintenance or manual intervention.

3. No moving or wearing parts

With a durable, mechanical design and no components subject to wear, the valves offer over 20 years of service life without requiring adjustment, cleaning, or replacement.

Looking for a Way to Protect Your Centrifugal Pump from Cavitation?

Cavitation can cause serious damage to pumps, leading to increased wear, energy loss, and costly downtime.

BT-Maric Flow Control Valves offer a simple, tamper-proof solution to help maintain optimal pump performance and prevent cavitation-related issues.

Don’t hesitate to contact us for more information or technical advice – we’re here to help you find the right solution.