Controlling Emissions To Atmosphere Through The Use Of A Dry-Sliding Secondary Containment Seal

Lecturepg. 55Increasing concern over the emission of hazardous compounds to the atmosphere has led to stricter regulations regarding the acceptable amount of leakage from pumps. This is forcing the users and manufacturers of pumps and seals to review their options for meeting these regulations. The options pump users and manufacturers have for meeting federal and local emission regulations is discussed herein. Included among these options is a new concept which involves utilizing a dry sliding secondary seal to contain primary seal emissions and act as a reserve safety seal during primary seal failure. Discussion will include a description of the design of the containment seal that was developed, along with laboratory and field test results for this seal