CHEMICAL DELIVERY SYSTEMS (CDU AND CVB)
Chemwest produces Chemical delivery units (CDU) for specific chemical delivery of corrosive chemistry; chemical valve boxes (CVB) for controlled chemical delivery to process equipment; chemical delivery systems for bulk chemical delivery; drum-supplied chemical delivery or tote-supplied chemical delivery. Plastic-manufactured chemical delivery systems can be configured to use pneumatic pumps and magnetic drive pumps with redundant pump operation. Pump dampeners help to reduce pulse and surge. Chemical valve boxes (CVB’s) can have 1-12 chemical valve sticks (typical configuration is manual high purity valves x pneumatic high purity valves by sample or drain valve). Chemical valve boxes can be configured to operate as a slave to process equipment or run on its own internal program and operation code.