A backflow prevention assembly or backflow test kit is a device that is used to test the flow of fluid from a plumbing system and check for backflow problems. The purpose of testing the flow of any fluid is to prevent the injury of workers and property by faulty venting systems or pipelines. Generally, the devices have either one or more gauge covers to cover different gauges in the device. These covers are made up of a material that will break if pressure is applied to the cover; however the pressure should never exceed the maximum rating of the cover. The purpose of this testing is to help ensure that venting systems do not become a problem for the company and if they do it can be repaired easily.
Because the purpose of a backflow test kit is to monitor the pressure at which liquids are injected into and exchanged out of pipes or other such equipment, many different gauges will be used on these instruments to record the data and allow an examination of the equipment to determine where the problem is originating from. Among the gauges that may be used include velocity, displacement, density, buoyancy and others. These gauges will record the pressure that is applied to the valves, as well as the ambient pressure in the system so that the cause of the backlog problem can be determined.
Because testing backflow prevention assemblies may be performed in various environments, the backflow test kit that is purchased should be able to withstand different environmental conditions. Some of the more common testing kits that are used are those that are designed to be used outdoors. If this type of kit is purchased then the appropriate weather stripping should also be used. The kit should also be able to withstand different temperatures, and should be tested on the appropriate size of pressure vessels. When purchasing testing backflow test kits, it is important to do so from a reputable company. Reputable companies will be able to provide accurate and up-to-date information about the products that they sell.