Whether you manufacture or install fire sprinkler systems, you understand just how essential they are to keeping people safe and avoiding the damaged property. But, after this system gets added to a building, its functionality needs to be properly maintained and monitored, and for all types of setups, that means checking up on and replacing its sensor.
What Can Happen?
For dry sprinklers, compressed air contains your water supply in the main pipe valve, and if a fire starts in a building, the sprinkler activates when the system’s air pressure drops and the valve opens to release the water. Unlike systems that contain standing water, dry sprinklers are ideal for areas with a temperature of 40°F or anywhere pipes could potentially freeze.
Within this setup, as you know, auxiliary drains are required for each segment of the trapped pipe, collecting moisture and preventing loss of air pressure. When this part fails, either from freezing or damage, your system may need $5,000 to $10,000 worth of repairs and can cause a high degree of injury and property damage.
And, this is where your float switch is such a key component. Although small, this essential auxiliary drain part helps with monitoring condensation levels. When this buildup reaches a point in which maintenance is needed, it triggers an alarm and warning light. Furthermore, its functionality includes notifying the fire control panel, detecting water flow through the pipes, mitigating false alarms, and preventing freeze-ups.
Replacing Your Float Switch
Because of its small-yet-keystone status, a float switch that fails to consistently operate creates a liability for your fire sprinkler system. As a result, replacing the part becomes mandatory.
So, out of all possibilities, which float switch accommodates this specific need? For one, a universal float switch with a vertical configuration fits the task, offering variable control and multiple positions. Through Strain Measurement Devices, plastic float level switches provide a cost-effective solution. Polypropylene, particularly, is suited to many general uses, as it can handle repeat exposure to both water and acids and a wide range of temperatures (up to 110° C), making these switches ideal for colder applications. SMD offers the FS01, a standard-size vertical polypropylene float switch, FS12, a mini vertical float switch, and the ultra-mini FS25.