Wilden’s legendary Original™ Series pumps were designed for demanding utilitarian type of applications that require a robust design. The clamped configuration is a classic design that evolved from 1955 with the invention of Jim Wilden’s first air operated double diaphragm pump. The Original™ Series pumps ensure reliability without sacrificing ease of maintenance. Wilden’s metal pump line lends itself to various processes and waste applications. Wilden also offers a multitude of elastomer options including Teflon® PTFE, to meet your abrasion, temperature, and chemical compatibility concerns.