System Sensor Fire Sprinkler Monitoring

A P P L I C A T I O N S G U I D E Sprinkler Monitoring P P L I C A T I O N S G U I D E Sprinkler Monitoring 3 Sprinkler Systems 4 Pipe Fire Sprinkler Systems 4 Fire Sprinkler Systems 5 Fire Sprinkler Systems 5 5 Laboratories 7 SprinklerSystem Monitoring Devices 8 Type Waterflow Detectors 8 Switches 9 Switches 11 Proof Detectors 11 Bells and Horn Strobes 12 of Terms 13 the first automatic fire sprinkler system was developed in the 1870s a fire sprinkler system consisted of a perforated pipe a valve a person open the valve and an elevated barrel or tank filled with water A more dependable system was created in response to increased fire loads and values of buildings and their contents A more advanced fire sprinkler system became possible as technology became more sophisticated sprinkler systems automatically detect and then control suppress or extinguish fires Water supplies can come from city water mains dedicated tanks or ponds Valves and alarm devices control and monitor the water flow Distribution pipes send water to the fire sprinkler heads using water source to maintain and increase water pressure according to design criteria Modern systems can detect a fire condition and discharge water before a fire grows to a fatal or catastrophic size reducing fire deaths by nearly 100 percent Understanding your fire fire sprinkler system can life saving After reading this guide you will be more knowledgeable about the waterflow detectors supervisory switches pressure switches explo proof products and alarm bells within a fire sprinkler system guide provides information for the proper application installation and maintenance of System Sensor fire sprinkler and notification products must comply with all code requirements such as NFPA and comply with directives from Authorities Having Jurisdiction AHJ AHJ direc always take precedence over other codes and have final authority Sensor was founded in 1984 and has become the largest manufacturer of fire detection and notification appliances in the world More than System Sensor associates collaborate to build quality products for conventional detection intelligent detection audible and visible AV notifi heating ventilation air conditioning HVAC monitoring and fire sprinkler systems monitoring High production standards and strong customer contribute to the solid demand for System Sensor products day we aim to develop advanced ideas that deliver advanced solutions 1 Sprinkler Systems are four types of fire sprinkler systems wet pipe dry pipe deluge pre action These choices allow fire sprinkler systems to provide an of of hazard and environmental protection customized to each indi situation Pipe Fire Sprinkler System with Maintained Excess Pressure pipe fire sprinkler systems with maintained excess pressure are with an alarm check valve In this type of system excess pressure pumped in just above the alarm check valve to hold the clapper down during a city water surge This type of system eliminates false alarms by surges in the municipal water supply are two ways to measure pressure loss in this type of system Pipe Fire Sprinkler Systems pipe fire sprinkler systems are the most common systems They have fewest number of components and require less installation time than systems A wet pipe fire sprinkler system has a series of pipes con to regularly distributed fire sprinkler heads fed by a main riser is minimal so financial savings are also realized pipe fire sprinkler systems cannot be installed in an area where distribu pipes are exposed to freezing temperatures such as parking garages they always contain water A pressure switch is connected to the system above the check valve a fire sprinkler head is activated the switch detects a drop in and sends an alarm Usually a supervisory pressure switch is to monitor leaks in the system A pressure switch is connected to the alarm port of the alarm check When the fire sprinkler head is activated the alarm check valve When the valve opens the alarm port is exposed to the incom water supply The pressure switch detects the pressure change sends an alarm operation of a wet pipe fire sprinkler system depends on the heat reac fire sprinkler heads When a fire starts its heat causes a fusible glass or metallic heat sensor within the fire sprinkler head to shatter or melt separate Either action causes water to discharge from the distribution striking the deflector on the open fire sprinkler head and spraying onto the fire in an engineered pattern or throw pipe systems are fixed temperature installations meaning each fire head is activated only if exposed to a predetermined tempera as low as 155 or as high as 286 are three types of wet pipe fire sprinkler systems wet pipe fire sprin system with an alarm check valve wet pipe fire sprinkler system with excess pressure or wet pipe fire sprinkler system with a straight riser Pipe Fire Sprinkler System with an Alarm Check Valve water enters the fire sprinkler system piping it becomes non pota and unsuitable for drinking To keep the non potable water from leaking into the city water supply an alarm check valve can be installed The check valve is a small device consisting of a spring valve clapper alarm port spring holds the valve clapper closed so that water will flow only in direction Water will not flow out of the fire sprinkler head until a prede temperature causes the individual fire sprinkler head to activate a sprinkler head is activated the clapper opens allowing water to flow the valve to feed the system As the alarm port becomes exposed water pressure it causes a water motor gong mechanical bell or A V to sound A waterflow detector connected to an electric bell horn horn strobe has become the most common waterflow alarm notification replacing the mechanical water motor gong The alarm port also exposed to the incoming water supply where an alarm pressure can be installed to send an alarm signal to a panel prevent a city water surge from activating alarms a retard chamber can installed The retard chamber is a metal reservoir that holds the water a brief city water surge A drip valve at the bottom of the reservoir