Patent ID: 8479593

Claim:
A foam free testing system to test operability of a fire suppression system, comprising: a foam storage container, said foam storage container having at least one outlet port and an inlet port; at least one discharge nozzle; a water supply; a water piping and component line including water line piping and components; a plurality of water-foam combination point parts connected to said water piping and component line at a plurality of combination locations, said combination locations being locations at which water from said water supply and foam from said foam storage container are combined when said fire suppression system under test is operating in fire suppression mode, wherein each of said combination point parts is connected to at least one of said at least one discharge nozzle; said water piping and component line being configured to pump and route water from said water supply to said plurality of water-foam combination point parts; a plurality of foam line pre-combination point parts; a foam piping and component line including foam line piping and components configured to route and pump foam from said foam storage container to said plurality of foam pre-combination point parts, said plurality of foam line pre-combination point parts being located on said foam piping and component line, each of said plurality of foam line pre-combination point parts flowingly preceding a corresponding one of said plurality of combination point parts such that preventing flow through one of said foam pre-combination point parts when said fire suppression system under test is operating in fire suppression mode prevents flow to its corresponding of said plurality of combination point parts without interrupting flow to any other of said plurality of combination point parts; at least one terminal line, wherein each of said at least one terminal line is configured to connect to one of said combination point parts; a plurality of terminal line valves, wherein each of said plurality of terminal line valves is located on a corresponding one of said at least one terminal line, wherein each of said plurality of terminal line and its corresponding of said plurality of terminal line valves is configured to prevent flow of foam to said combination point parts; at least one bypass line, wherein each of said at least one bypass line is connected to one of said plurality of pre-combination point parts and feeds into said foam storage container; each of said plurality of bypass lines being configured to direct said foam from said pre-combination point parts to said inlet port of said foam storage container; and each of said at least one terminal line preventing flow of foam to said at least one discharge nozzle that the combination point part to which said at least one terminal line is connected feeds when said foam-free system is operating.