Various rubber components are used in the manufacture of diaphragms and a nylon fabric mesh is used for dimensional stability and additional strength. Elastomers such as Neoprene, Buna-N, EPDM, (Nordel) and Viton are the most frequently used. Their chief characteristic is flexibility which allows more volume to be displaced. Thermoplastic materials are also available for manufacturing diaphragms. These are produced by an injection moulding process and require no fabric reinforcement for dimensional stability or tensile strength. The most popular are polyurethane, Hytrel, Santoprene and Teflon. Polyurethane gives excellent general purpose diaphragms which are the most economical of all, with extremely good flex life.

You’ve heard it before, and here we go again. Allegedly, the most misunderstood concept in the pump world is net positive suction head (NPSH). I have written several articles on the subject and so have many other pump technicians or engineers and so-called experts.

For More Actionable Insights Into The Competitive Landscape Of Global Market, Get A Customized Report Here.

Rubber diaphragms are compression molded of synthetic rubber with a nylon fabric mesh positioned within the rubber to improve the diaphragm’s flexing characteristics. The following are the rubber diaphragm materials available:

"We’re excited to add All-Flo to our best-in-class portfolio of pump businesses," said Richard J. Tobin, Dover’s President and Chief Executive Officer. "This acquisition strengthens PSG’s market-leading position and is consistent with our strategic approach of deploying capital in close-to-core markets that offer sustainable, profitable growth, and where we can confidently create value for shareholders."

AODD pumps contain fewer moving parts than many other types of pumps, and are simple to set up. There are no shaft seals or packing boxes involved. The diaphragm is a dynamic seal that converts the pneumatic pressure on one side to a fluid pressure on the other (the medium to be pumped). Discharge flow rates are adjusted by controlling the air inlet, so no complex control systems are required.

The report provides a unique tool for evaluating the Market, highlighting opportunities, and supporting strategic and tactical decision-making. This report recognizes that in this rapidly-evolving and competitive environment, up-to-date Marketing information is essential to monitor performance and make critical decisions for growth and profitability. It provides information on trends and developments, and focuses on Markets and materials, capacities and technologies, and on the changing structure of the Diaphragm Pump.

Diaphragm pumps are positive displacement pumps which are used to pump fluids with the help of reciprocating motion of the diaphragm. Diaphragm pumps mainly consist of a reciprocating diaphragm made up of rubber or other polymeric materials and check valves which control the incoming and outgoing fluid. Moreover, selection of a suitable diaphragm material according to the application is the most important factor for longer life of diaphragm pumps. For better service life of diaphragm pumps structured diaphragms are used in many applications. Sometimes, for higher capacity, double diaphragm pumps are used in place of single diaphragm pumps. The energy required for the reciprocating motion of diaphragm can be derived from a mechanical drive or a hydraulic drive. Furthermore, the output fluid volume can be controlled in two ways, either by changing the length of the diaphragm stroke or by varying the speed of diaphragm stroke. Diaphragm pumps are employed for high to medium flow rates at high pressures. Because of their ability to handle different types of fluids, diaphragm pumps are used in various industries like construction industry and chemical industry.

To conclude, the Electric Diaphragm Pump Industry report mentions the market dynamics with respect to key geographies; market landscapes alongside the product price, revenue, volume, production, supply, demand, market growth rate; future forecast. This report also provides SWOT & PEST analysis, investment feasibility analysis, and investment return analysis for the forecast period.

The versatility of this pump type, and range of applications that can be accommodated is due in no small part to the wide range of materials than can be used in the construction of both for the pump body and the diaphragms. The diaphragm is literally the heart of the pump. Key factors to take into account when determining the suitability of a diaphragm pump for certain applications are the materials that need to be pumped, the temperature in which they are to operate, the potential effect on the equipment and of course the flex life of the diaphragm.

The digital edition of the magazine is distributed free of charge to readers who meet our qualifying criteria. You can apply to receive your free copy by completing this short registration form.

The NPSH name itself, an acronym, confuses most pump neophytes. The subject and required calculations confounds people who are new to the industry, those on the periphery (operators or administrators) and professionals who incorrectly believe they fully understand the subject even after 25 years in the business.