To enhance the service life and operational safety of magnetic pumps, various protection systems can be integrated. These systems help prevent failures and ensure reliable performance under different operating conditions. Here are some of the most common and effective protection features available:
(1) Bearing Condition Monitor
Some leading manufacturers offer non-contact bearing condition monitoring systems, which detect early signs of wear, misalignment, or rotor jamming. This helps prevent costly damage and unexpected downtime.
(2) Motor Power Monitor
This device monitors motor power consumption to detect low flow or dry running conditions, which can cause severe pump damage. It acts as an early warning system for improper operation.
(3) Temperature Probe (RTD)
A temperature probe is used to monitor the baffle temperature, providing real-time feedback on the pump's operational status. It helps prevent dry running, bearing wear, cavitation, and overheating issues.
(4) Differential Pressure Switch
This switch monitors outlet pressure changes and alerts operators when there’s a risk of dry running, cavitation, or blockage. It’s especially useful in applications like container emptying or tank truck unloading.
(5) Secondary Protection System
â‘ Pressure-Tight Magnetic Coupling Box with Secondary Seal
For high-pressure and hazardous chemical transfer, the magnetic coupling box should be sealed and designed to match the pump’s hydraulic end pressure. A secondary seal (mechanical seal or throttle bushing) is also installed to provide an extra layer of protection. This setup is recommended by API 685.
â‘¡ Double Isolation Sleeve Structure
In this design, the outer isolation sleeve is built to withstand the same pressure as the pump’s hydraulic end, ensuring maximum safety. It provides dual protection against leakage.
(6) Liquid Leak Probe
For pumps equipped with secondary protection, a liquid leak probe is essential. If the isolation sleeve ruptures or fails, the probe detects the presence of liquid in the magnetic coupling chamber or between the inner and outer sleeves, triggering an alarm immediately.
If you're looking for reliable and safe pumping solutions, consider magnetic pumps, high-temperature magnetic pumps, stainless steel magnetic pumps, pipeline pumps, vertical or horizontal pipeline pumps, pneumatic diaphragm pumps, or electric diaphragm pumps. Each type is designed for specific applications and environments. Let us know if you need further assistance!
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