Johnson Pump Spx Flow Bilge Pump Magnetic Switch 12V

JOHNSON PUMP SPX Flow Bilge Pump Magnetic Switch 12V

Ensure your vessel remains dry and safe with the revolutionary JOHNSON PUMP SPX Flow Bilge Pump Magnetic Switch. This advanced 12V switch is the ultimate upgrade for any boater seeking unparalleled reliability and fully automatic control over their bilge pump system. Engineered by SPX Flow, a leader in marine technology, this switch eliminates the common points of failure found in traditional float switches, offering you complete peace of mind whether you are on board or away from your boat. Its innovative design provides a smart, efficient, and environmentally responsible solution for managing bilge water.

The core advantage of this magnetic switch is its exceptional durability and protection against the harsh marine environment. By utilizing a sealed, non-contact activation method, it is impervious to contamination from oil, fuel, and debris that can cause other switches to stick or fail. This mercury-free design not only ensures compliance with environmental regulations but also demonstrates a commitment to preserving our waterways. The switch is ignition protected, making it a safe and essential component for installation in engine compartments and other areas where fuel vapors may be present. Its low-profile, compact form factor allows for versatile and easy installation in even the most cramped bilges, ensuring a clean and professional setup.

The secret to its reliability lies in its innovative electro-magnetic mechanism, which is designed to prevent the rapid on/off pump cycling that can lead to premature motor burnout. The process is both simple and ingenious:

As bilge water rises, the internal float (1) ascends within its protective housing (2), forcing trapped air out through a vent hole (3) at the top. When the water level reaches a depth of 50mm, the float reaches its highest point. At this moment, a powerful magnet located on the float activates a hermetically sealed reed switch, instantly switching on your bilge pump to begin evacuation. Simultaneously, a clever air valve (5) shuts, closing off the vent hole. This action creates a vacuum in the space above the float, causing it to remain held in the ´on´ position as the level of the bilge water falls. This delay ensures the pump runs long enough to clear the bilge effectively, rather than chattering. Only when the water has dropped down to 20mm does air enter through an opening (6) at the bottom of the housing, releasing the vacuum. The float then drops down, and the power to the pump is switched off, ready for the next cycle.

Choose the JOHNSON PUMP SPX Flow Bilge Pump Magnetic Switch for superior performance and longevity. It is the definitive choice for boat owners who demand the best in automatic bilge pump operation. Protect your investment and enjoy worry-free time on the water by upgrading your boat´s essential equipment with this state-of-the-art pump switch