A variety of procedures ensure worker safety and environmental compliance.
Calder Testers Inc.
11/28/2018
Editor’s Note: The following is an excerpt from an article that first appeared in the October 1993 issue of Pumps & Systems magazine.
Pump manufacturers and users are finding that hydrostatic leak testing of castings and pressure-containing parts before assembly is an excellent quality control measure. This ensures the integrity of products where leakage could cause premature failures, present a hazard to workers or the general public, or lead to fires or explosions.Why Leak Test?
When flow into and out of a pump affects its usefulness, leakage control is necessary. There are three basic reasons for leak testing: to prevent fluid loss that compromises system operation, to prevent contamination of the environment and to detect unreliable pump components and unacceptable leakage rates.- The U.S. government. Federal regulations are proliferating. Users are under increasing pressure to contain process fluids. With passage of the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act and other legislation, government officials are inserting themselves into the approval chain ahead of industrial criteria and customer needs.
- Professionalism. A testing system can combine functions of the assembly process, improve product line integrity and decrease production time. In addition, a pump testing program can be used as a sales tool—as long as it meets the exact specifications and objectives of the user.
- Troubleshooting. Pump testing can be an important part of on-site preventative and predictive maintenance programs in plants and refineries because computers allow on-the-spot statistical analyses from a database of pumps tested to pinpoint weak spots.