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NFPA 13 PRESSURE TEST PROCEDURES

NFPA 13 PRESSURE TEST PROCEDURES  (Aboveground Fire Systems): A hydrostatic test is a pressure test to reveal the presence of leaks in the piping system. For fire protection systems, the piping is pressurized to 200 psi (13.8 bar) for a period of 2 hours.  During this time period, the system piping is inspected for leaks.  Leaks in the piping system are revealed either by observation of water droplets or by a reduction in test pressure. Any leaks or reduction in test pressure necessitates a repair of the pipe joint involved and a retest to verify that the leak has been repaired. In cases where high pressure exists, the standard requires that the test pressure be 50 psi (3.5 bar) in excess of the normal system pressure if the resultant test pressure will be greater than 200 psi (13.8 bar).. By NFPA: Unless permitted by 24.2.1.2 through 24.2.1.8, all piping and attached appurtenances subjected to system working pressure shall be hydrostatically tested ...
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Fire Pump Foundation

Fire Pumps Foundations NFPA 20 (2013 edition) Section 6.4.3 states that centrifugal pumps shall be securely attached to a solid foundation in such a way that proper pump shaft and driver shaft alignment is ensured. Foundation shall be sufficiently substantial to form a permanent and rigid support for the base plate (6.4.4). A substantial foundation is important to form a permanent and rigid support for the base plate. The foundation, preferably made of reinforced concrete, needs to be designed to adequately carry the loading of the pump, driver, and other equipment (A.6.4.4) The pump need to be anchored to the foundation with foundation bolts to form a single structural unit. After the pump has been properly secured to the foundation and proper alignment has been verified, the pump may then be grouted to the foundation. The base plate should be completely filled with grout, and it is desirable to grout the leveling pieces, shims, or wedges in place. Foundation bolt...
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Wet Pipe Fire Sprinkler System

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Wet Pipe Fire Sprinkler System Wet pipe sprinkler systems are the simplest and most common fire suppression method on the market today. This fire sprinkler system is cost efficient and low maintenance. They are comprised of pipes that constantly contain pressurized water. When a sprinkler activates this water is immediately discharged onto the fire.  The first automatic, closed-type sprinkler head immediately discharges water, as more individual sprinkler heads are subsequently activated by heat, they too will discharge water onto the fire until it is controlled or extinguished. Wet pipe fire sprinkler systems can be installed in buildings not susceptible to freezing (i.e., where temperatures are above 40 degrees Fahrenheit).   Typically, a Fire Sprinkler Systems are made up from a series of components including; Stop Valve, Alarm Valve, Fire Sprinkler (head), Alarm Test Valve and Motorized Alarm Bell (Gong). In addition to this there are additional components ...
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