ADCOA has had long experience in working with the major utilities and power circuit breaker manufacturers in the development and production of SF6 Circuit Breaker Desiccant Bags. These bags are designed to be suspended in the breaker housings to adsorb water vapor and other arc products.
Our Power Circuit Breaker Desiccant Bags are made from self extinguishing, non-dusting Dacron. In most of these bags, we utilize Type 4A Molecular Sieve as the active desiccant. Type 4A has been found to be the preferred desiccant for this application.
Circuit Breaker Desiccants have become a mandatory maintenance item for most breakers in use today. The 4A Molecular Sieve is a synthetically reconstituted alumina silicate which is generated and processed under stringent conditions to establish exact pore dimensions within the lattice of the molecules crystalline structure. These pores are created by removing the water of crystallization from the compound. In its dehydrated state, the Molecular Sieve exhibits a tremendous affinity for water and smaller hydrocarbons, adsorbing over twenty percent of its weight of such contaminates. The incorporation of Type 4A into the static drying system essentially eliminates the danger of arcing caused by gas contamination in the breaker housing.
ADCOA also offers a full range of desiccants for use as a bulk moisture drying bed in the circuit breaker door. These desiccants include Activated Alumina and Silica Gel.
We package all of our Circuit Breaker Desiccant Bags in heat-sealed, vapor-proof foil enclosures to prevent contamination of the product prior to use. Packaged in this manner, we guarantee a minimum shelf life to two years.
Used by many public utilities and power circuit breaker manufacturers. Suspended in the breaker housings to adsorb water vapor and other arc products. A mandatory maintenance item for most breakers in use today.
Type 4A Molecular Sieve