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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

High Power Low Voltage Motors for Horizontal Pumping Applications

25.06.2025 -

Wolong Electric America introduces a new line of high power, low voltage motors to its Quantum horizontal motor line. Designed for demanding horizontal pumping applications in oil and gas and natural gas compression facilities, these 2-pole, 3-phase, 460V motors offer up to 1500 horsepower, a power range traditionally reserved for multiple units or medium voltage machines.

Steelpaint’s Combination 500 Passes FRP Coatings Trial

24.06.2025 -

Steelpaint GmbH has confirmed the successful application and long-term performance of its one-component coating system, Stelpant PU Combination 500, on fibre-reinforced plastic (FRP) and glass flake structures. The trial marks the coating’s first larger-scale industrial application to this class of composite substrate; a material used frequently across most industrial sectors.

Robust Motor for High-Efficiency Industrial Motion Control in Oil and Gas Facilities

20.06.2025 -

Wolong Electric America is proud to highlight the EMR-Bulldozer Series, a ferrite-assisted synchronous reluctance integrated drive motor engineered for ultra-high efficiency, robust performance, and long-term reliability in harsh oil and gas facility conditions. With efficiency equivalent to IE5, the highest currently recognized international standard, the EMR-Bulldozer motors deliver outstanding power density and energy savings, making them ideal for demanding pump, fan, compressor, and conveyor applications in oil and gas facilities.