Low leakage slide gate isolation dampers are primarily used for isolation purposes where low levels of leakage and pressure drop are required.
Constructed with heavy formed channels and structurally designed blades.
Low leakage dual blade slide gate isolation dampers are available for systems which experience build up around the blade seals. The dual blade concept enables each blade to be fully stroked separately, allowing the blade seals to be cleaned without taking the flue gas system out of service.
Zero leakage slide gate isolation dampers are used when isolation is required for a system, by employing dual blades that provide an air chamber achieving zero leakage. Machine screws with protective boots and electric motors are supplied for open-close service. An isolation valve is furnished to prevent flue gas leakage to the atmosphere when the seal air fan is not operating.