The principal use of the REGAL Gas Sulphonator is to de-chlorinate water, wastewater and industrial process water with sulfur dioxide. REGAL Sulphonators are based on the same simple, efficient design that has made REGAL Gas Chlorinators the industry standard. Built with heavy duty corrosion-resistant parts, REGAL Sulphonators provide safe, long-lasting service.

The REGAL Sulphonator incorporates the very best available materials with the latest technology in design and construction, to reduce maintenance, simplify construction and improve operation.

The REGAL Sulphonator is a vacuum-operated, gas feed system which utilizes a gas regulator mounted directly to a sulfur dioxide cylinder valve by means of a positive heavy duty yoke clamp. The regulator contains an internal spring-opposed diaphragm assembly designed to automatically open (or close) a built-in safety shut-off valve. Once sufficient vacuum is applied to the system, the safety valve opens, thus allowing the sulfur dioxide (SO2) gas to flow through the system. The vacuum needed to operate the system is created inside the Ejector Assembly by pressure-feeding water into a specially designed nozzle coupled to an outlet inside the ejector body. As the nozzle creates the vacuum, the gas is mixed with water to form the solution. A back-flow check valve is incorporated into the ejector assembly to reduce the possibility of water entering the system via the vacuum tubing.

Dual scale metering tubes are provided with the following maximum capacities.
Minimum feed rate is 1/20th of maximum