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How a Diaphragm Pump Works

How a Diaphragm Pump Works

Double diaphragm pumps operate using an oscillating positive displacement principle. The pump consists of two main fluid housings and a central air control section. Inside each housing, a flexible diaphragm is mounted vertically and connected to a shared shaft. As compressed air enters and exits the air chambers, the diaphragms move in a coordinated push pull motion.

LATEST NEWS

Vanzetti Engineering Unveils ESK-IMO for the Marine and Industrial Markets

14.07.2026 -

On 8 and 9 June, Vanzetti Engineering hosted an international event dedicated to LNG market trends, with a particular focus on the development of Small-Scale LNG Terminals, FSRUs and LNG bunkering. During the event, the company successfully tested its new ESK-IMO removable submerged cryogenic pump, a solution specifically designed to meet the technological challenges of these fast-growing market segments.

Entries Now Open for the 2027 Pump Industry Awards

13.07.2026 -

The British Pump Manufacturers Association (BPMA) announces that entries are now open for the 2027 Pump Industry Awards, inviting companies, organisations, and individuals from across the pump sector to showcase their achievements in one of industry’s longest standing and most highly respected awards programmes.