Chemical Feed and Control System Equipment

Cooling Tower Bleedoff Controllers are designed to continuously monitor the Total Dissolved Solids level of the tower system water and activate a Solenoid Bleed Valve to drain high TDS water from the tower system. Various manufacturers offer other capabilities including control of inhibitor feed, biocide feed, and acid feed (for pH control).

Boiler System Blowdown Controllers are designed to continuously monitor the Total Dissolved Solids level of the boiler system water and activate a blowdown valve (solenoid or motorized) to drain high TDS water from the boiler system.

pH and ORP Controllers are designed to continuously monitor system water pH and/or oxidizer (chlorine or bromine) level and add acid, caustic, and/or oxidizer (chlorine or bromine) to maintain programmed levels.

Power Head Water Meters are used to measure makeup water to steam boiler, cooling tower and closed systems. Each time the designated number of gallons pass through the meter, an electrical pulse is generated. The pulses are accumulated to control timers and/or remotely record the number of gallons used. Typical gallons per pulse are 1, 10, 50 and 100 gallons.

Chemical Feed Timers can be built into other controllers or individual units, are generally used in conjunction with power head water meters, and are used to operate chemical feed pumps for preprogrammed times.

Injection Quills and Corporation Stops are used to inject treatment chemicals into the center of circulating lines. This type of injection equipment assures complete mixing of injected chemicals with the circulating water, and permits removal during system operation.

Bleedoff / Blowdown Assemblies include a solenoid valve, a wye strainer, and an isolation valve. These prebuilt assemblies are designed to assure minimal blowdown failure.

Bypass and Shot Feeders are used to manually add inhibitor to closed systems, biocide treatments to cooling tower systems, and treatment chemicals to low pressure high percent return steam boiler systems. Some feeders include filters for cleanup of dirty systems.

Chemical Holding Tanks are used to contain treatment chemicals for injection into the treated systems. Single-walled tanks should be placed in spill containment tanks. Newer tank systems are double-walled with the outer container providing spill containment.

Chemical Feed Pumps are used to inject treatment chemicals into the treated systems. Delivery volume, maximum injection pressure, and programming options vary by manufacturer and model. More information