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AGF's PURGEnVENT Model 7900 Automatic Air Vent (AAV) is a 1" isolation ball valve, barrel strainer, air vent, and purge valve that helps prevent corrosion by automatically releasing trapped air in wet fire sprinkler systems. It meets NFPA 13 code that requires a single air vent on each wet pipe sprinkler system utilizing metallic pipe. The patented design automatically vents air without leaking, eliminating the need for drip pans or drain lines. The unique purge valve with hose thread can be used for rapid air purging as the system is filling and doubles as a vacuum breaker when draining the system. The purge valve is also designed to facilitate and accelerate required NFPA 13 and NFPA 25 strainer maintenance. AGF recommends installing Model 7900AAV near the high point of the system, at the end of branch lines, and on top of supply risers.


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The 5100ALBV is a water detector alarm for dry fire sprinkler auxiliary drains (low point drains or drum drips). The 5100ALBV detects water in the auxiliary drain and alerts you that maintenance is needed to prevent freezing. The alarm can be added to existing auxiliary drains or comes preassembled on the model 5300ALBV. It can be powered by a 9V battery, 12-24 VDC, or an optional 110V plug. The 5100ALBV can also be wired to the Fire Control Panel or Building Management System (BMS) for remote notification.

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The Flood Eliminator is easily installed with threads above the auxiliary drain and seals if the system has an accidental system trip due to a broken auxiliary drain.

To limit the negative impact of a failed auxiliary drain, AGF created the Model 5900FE FLOOD ELIMINATOR. The Model 5900FE is designed to allow condensate water to collect normally in a standard drum drip but then, if presented with the flow that would result from a failed drum drip, automatically trip to cut off that flow, eliminating the flooding and damage that would result from the system’s failure.

The patented Model 5900FE is housed in a 3 ½” brass body with a 1” female NPT inlet and a 1” male NPT outlet, and it is designed to be installed above the top valve of a typical auxiliary drain assembly. If the drain below a Flood Eliminator fails, the dry valve will open, resulting in pressurized water entering the system flowing towards the break. When this high velocity pressurized flow reaches the internal mechanism of the Flood Eliminator, it will shut down the flow eliminating the damaging flooding that would result from a broken free flowing sprinkler line.     

The Model 5900FE can be easily retrofitted onto existing auxiliary drains and is designed to be installed upstream (above) the first valve of a traditional drum drip assembly in a vertical position. Therefore, it will be necessary to close the dry valve and remove the drum drip assembly for installation.  Since the 5900FE is only 3 ½” long it will likely not be necessary to shorten or remove any existing pipe.  Old thread sealant should be removed from any pipe thread and from the drum drip valve and appropriate new sealant should be applied to all connection points. The 5900FE needs to be installed vertically in the direction indicated on the body.

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The commercial RiserPACK Model 8611 is a riser manifold for NFPA 13 fire sprinkler systems and is designed to fit into a corner to minimize protruding and comply with ADA Standards. The corner riser, model 8611 includes a flow switch, TESTanDRAIN Model 1011A with pressure relief valve and trim (7000L), Model 7600 3-way universal gauge valve, and a Model 7500 pressure gauge. Available with a steel body in sizes 2"-6", orifice sizes 3/8" (K 2.8) - 25K, and a groove x groove connection. AGF's corner manifold is available with a right or left drain to accommodate every installation configuration. Use the Find my Part Number button above to find your riser configuration and part number.

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