Chlorine Line FAQ

Chlorine Line Equipment sold by Powell consists of components used for chlorine handling for either gas or liquid chlorine piping systems. These include automated valve packages, manual valves, pipe and fittings, expansion tanks with rupture disks and optional switches, flexible hoses (both metallic and non-metallic), instruments, chlorine detections, container shutoff systems, and many other components.

Examples include the following:
• Powell supplies pressure gauges, pressure transmitters and pressure switches with 300 flanges seals with tantalum
diaphragms and inert fill.
• Mass flow meters with 300# flanged flanges with the correct tube material and software
• Temperature transmitters with Hastelloy thermo wells and wire guided level transmitters and high-level switches
• Chlorine detectors for sensing leaks of the piping system and around storage tanks, railcars, and containers.

It is normal to pressurize a chlorine railcar, ISO container, and tank truck with dry air or nitrogen to unload the vessel into the process. Powell can supply air compressors, dryers, and chlorine back flow prevention systems to successfully accomplish this process. In some cases, Powell will supply only the backflow system so either dry air or nitrogen can be supplied by the customer.

Powell supplies a packaged chlorine scrubber using sodium hydroxide to react the chlorine to sodium hypochlorite and salt. The equipment consists of pump(s), tank, optional titanium plate and frame heat exchanger, chlorine eductor, and lined steel pipe and fittings. Using the proprietary Kynar eductor, very high vacuums in the range of 25” of Hg can be achieved to pull the chlorine into the scrubber. This high vacuum will boil any liquid chlorine out of the equipment and react it with the sodium hypochlorite.

When chlorine transportation vessels, shipping containers, and piping systems are within a containment room, any chlorine leaks should be neutralized with sodium hydroxide, so chlorine does not escape to the atmosphere. Powell has developed a chlorine scrubber to be connected to the containment room that is sized to handle the maximum realize of the chlorine.