The Series 70CV2000 Chloromatic™ control valve is wall mounted and responds to control signals from a water flow transmitter and/or a chlorine residual analyzer controller. Valve characteristics are provided to directly accept a flow pacing signal from a process flow transmitter.
Automatic control eliminates the need for continuous operator monitoring and manual adjustment of the gas feed rate with changes in flow, especially where chemical discharge levels are regulated. And since manual system feed rates are usually based on peak facility flows, automatic feed will reduce gas consumption.
Similar units of different materials may be used for feeding ammonia, carbon dioxide and sulfur dioxide gases. The maximum capacities for these feeders are approximately 50%, 75%, and 100% respectively of the chlorinator capacity; e.g., the ammonia feeder is rated at 250 lb/day maximum.
The Series 70CV2000 control valve can be provided in maximum ranges from 10 PPD to 3000 PPD of chlorine for wall mounting. It is designed as a sonic control valve precluding the need for differential pressure regulators for all the ranges. The valve is also available for feeder cabinet mounting with maximum ranges from 10 PPD to 10,000 PPD of chlorine.
The Chloromatic valve is used in conjunction with a vacuum regulator, gas flowmeter and an ejector to provide a complete system.