Allied Flow Specialists, Inc. has 50 years of combined experience in the plumbing / mechanical industry. AFS has been providing Cross-Connection Control (Backflow service, repairs & installations, Pipefreezing, Hot Tapping and Line Stopping services to the Dallas-Fort Worth Metroplex and surrounding areas in Texas, as well as neighboring states, since 1997. Allied Flow Specialists, Inc. overcomes hazardous materials handling and makes for greater safety when conducting work on lines containing contaminated or volatile liquids. Pipefreezing: Regarded by many engineers as one of the most efficient and cost-effective methods of pipe isolation for maintenance programs - valve replacement, pipe work modification, etc. Application of industrial pipefreezing programs in both commercial and public institutions call for stringent safety at work disciplines. Allied Flow Specialists' Safety Policy is based upon these rigorously implemented principles, which meet and exceed, when necessary the operational pipefreezing guidelines that are accepted internationally. Hot Tapping: Defined as using an under pressure drilling machine to cut a hole in an operating pipeline, which allows for a new branch connection from the original pipe. Backflow: Arrangements through which backflow can occur are considered to be cross-connections. The unwanted reverse flow of liquids in a piping system is created by two basic conditions backpressure or back-siphonage. Allied Flow Specialists, Inc. is committed to making our environment a safer place to live. Our goal is to help you maintain your piping system and to insure backflow does not occur. With all services provided by Allied Flow, you can be assured of professionalism, safety and attention to detail. - Cross Connection Control - Certified & State Licensed - Specializing in testing, repair and installation of RPZ's, DC's & PVB Assemblies