A diaphagm pump (aka membrane pump) is a positive displacement pump that enables users in industries to standardize a pump type that is suitable for a wide variety of fluids. The only requirement is a compressed air supply. The fluid being handled requires a gentle pumping action, one that is chemically and physically aggressive. The diaphragm pump offers an efficient and low maintenance solution.
A double diaphragm is a positive displacement pump which utilizes two flexible diaphragms that reciprocate back and forth, creating a temporary chamber. The flexible diaphragms both draws in and expels fluids through the pump. The diaphragms work as a separation wall between the air and the liquid. The diaphragms are connected by a shaft in the center section.
There are different types of diaphragm pumps, like air operated diaphragm pumps (AODD), electric driven diaphragm pumps (EODD) and piston diaphragm pumps. The cast of diaphragm pumps are typically divided into metallic and non-metallic materials. There are also diaphragm pumps specifically designed for high clean purposes, these are constructed with polished stainless steel.
Diaphragm pumps are used in many industries. There is an extensive number of construction materials available to produce many configurations for difficult fluids. In addition to the fluid handling properties, diaphragm pumps can be specified for ATEX zones, EC1935/2004, FDA and 3A hygienic applications among other industry compliance measures.
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