Graco’s Husky™ 1050e electric double diaphragm pump offers dry running and stalling, as well as significant energy and cost savings over equivalent electric pumps and conventional air-operated diaphragm pumps.
“The Graco Husky 1050e is the only electric diaphragm pump on the market that will stall under pressure, to prevent pump failures from clogged lines or closed valves,” says Walter Leeten, Product Marketing Specialist Process at Graco. “Its energy efficient electric drive reduces energy consumption by up to five times compared to traditional air operated diaphragm pumps. In addition, the 1050e can be set to reduce pulsations, so you no longer need a pulsation dampener – which contributes to its low noise levels.”
How it works
The Husky 1050e is an electric operated 1” double diaphragm pump (EODD) and consists of the same fluid parts as a conventional AODD. Where it differs is that it uses an air pressurized center. “Compare it to a bicycle wheel,” explains Leeten. “You need to load the pump with air to start it working, but after that you don’t need a constant supply of air to keep it running. In fact you only need 0.6 liters of air a day!”
When the pressure pushing on the outside of the diaphragm (fluid pressure) is equal to or greater than the center section (air) pressure, the pump will stall, removing the risk of pressure being built up. This avoids damaging the pump or the production line. If then the air pressure in the center section increases so that it is greater than the fluid pressure, or the fluid pressure decreases so that it is less than the air pressure, the pump will start pumping again. The motor will keep running all the time.
Where to use the Husky 1050e?
•where air is not available
•to reduce energy costs
•to reduce noise
•to lower maintenance costs
The 1050e in the field
The 1050e was tested in a water treatment facility where it was used to pump lime slurry. In this application, one 1050e replaced two size 4 eccentric pumps. It racked up more than 24 million pumping cycles at a fluid flow rate of 68 liters per minute and a fluid pressure of 2.8 bar. With the previous eccentric pumps, hoses were replaced every two to six weeks. In eight months of operation, there was no need to replace a single diaphragm of the Husky 1050e.
About Graco
With almost 100 years of experience in manufacturing pumps and offering worldwide service capabilities, you can be sure you will find Graco everyday around the world. We spray varnish on your furniture, coating on your pills, the paint on your house and texture on your ceiling. We are a leading fluid handling company, marketing products in more than 100 countries on six continents, making sure you have a variety in choices in innovative equipment.
