KCD manufactures replacement deaerator trays and spray valves for most past and present deaerator suppliers. The trays and spray valves are upgraded designs by Deaerator Solutions and have been designed to provide the same performance, capacity, pressure drop, and spray pattern as the original parts, with a proven 20 year design life. Spray Valves: KCD’s spray valves are investment cast of type...
There are two different types of tray units. The first type of tray unit is a parallel downflow unit where steam travels in the same direction as the water. As the water enters through the water inlet on top of the tank, steam enters through the side of the deaerator and moves down through the trays with the water (hence,...
Tray-type deaerator A tray-type deaerator typically has a deaeration section mounted above a horizontal feedwater storage vessel. Water enters the deaeration section into a stainless-steel enclosure through stainless steel spray valves mounted to a horizontal header pipe. During the 1st stage of deaeration, the water is dispersed in a fine film or droplets above a section of trays. The water is deaerated...
ASME Boiler and Pressure Vessel Code was first issued over 100 years ago, and has since evolved into a leading standard internationally. The back cover of the Code book contains a statement regarding ASME’s commitment to public safety. Deaerators under pressure contain large quantities of stored energy which can be dangerous. The ASME Code contains rules and requirements for design, manufacture, and inspection...
While some plants are diligent about regular inspections, others are not. Regular deaerator inspection and maintenance is critical because of the classic phrase, “a stitch in time”. Many failures or unplanned shutdowns can be avoided with planned inspections. Cracks in welds – minor cracks can be discovered and repaired before they become a major problem. Erosion or Flow Accelerated Corrosion (FAC) – usually a...
A deaerator is a specialized piece of equipment used with a boiler. It's purpose is to dissolve oxygen through a mechanical process to reduce the need for water treatment with chemicals. It effectively removes other gases as well, which protects the boiler from being pitted or corroded so it has a longer lifespan. Measuring the technical efficiency of a deaerator depends...
