Diaphragm Development Trends For Safe Leak Free Reciprocating Process Pumps
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The application of diaphragm pumps for metering and conveying the fluids are continuously expanding because they provide zero-leakage, can run dry, have superior efficiency, offer high reliability, maximize safety and minimize maintenance. However, end users should develop an understanding of the functional details involved and the necessity of a systems approach when installing and operating these pumps. The diaphragm design and the various influences on endurance and reliability are evaluated. Among others: material selection, the diaphragm motive system, the pump head/diaphragm, and installation/diaphragm interactions, diaphragm clamping, sandwich diaphragm design, computation of stresses and fatigue for both metal and PTFE diaphragm. Objectives or further optimization of diaphragm designs and comments about economy, performance and reliability close the discussion.
Vetter, Gerhard; Schlucker, Eberhard; Horn, Waldemar; Neis, William E. (1995). Diaphragm Development Trends For Safe Leak Free Reciprocating Process Pumps. Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University. Available electronically from