What is a double diaphragm pump?
What is a double diaphragm pump?
A double diaphragm is a positive displacement pump which utilises two flexible diaphragms that reciprocate back and forth, creating a temporary chamber, which both draws in and expels fluid through the pump. The diaphragms work as a separation wall between the air and the liquid. The first stroke.
What is the main function of a diaphragm pump?
Diaphragm Pumps deliver a hermetic seal between the drive mechanism and the compression chamber, allowing the pump to transfer, compress, and evacuate the medium without a lubricant. An elastomeric diaphragm can be used as a versatile dynamic seal that removes many of the limitations found with other sealing methods.
How high can a diaphragm pump lift?
Height of Lift Normally, the suction lift of a diaphragm pump is limited to that corresponding to 14 feet of water at sea level. This amounts to a lift of approximately eight feet when pumping pulp containing 50% solids when the specific gravity of the dry solids is 2.65.
What is the difference between diaphragm pump and centrifugal pump?
Our overall recommendation is that for moving clear water, or water with small pieces of debris, then one of the Centrifugal Pumps is your best bet… however, if you are looking to move thick, viscous fluids, then a Diaphragm Pump is the go.
Do diaphragm pumps need to be primed?
A diaphragm pump is a positive displacement pump that uses a combination of reciprocating action and either a flapper valve or a ball valve to transfer liquids. Diaphragm pumps are self priming and are ideal for viscous liquids.
What are the disadvantages of a diaphragm pump?
Disadvantages
- They have little pulsation which may lead to the device damage.
- These pumps are persuaded not to push very accurately at their base section.
- Many of the diaphragm pumps typically need 20 cubic feet for every minute & nearly 100 PSI of air consumption to function efficiently.
Can a diaphragm pump pump dirty water?
Diaphragm pumps are capable of handling sticks, stones, mud, trash and other debris up to 2 in., or a bit larger than a golf ball. Useful in wastewater management applications, it is able to pump muddy water, sludge and other thick liquids that have the ability to flow.
Are there any air operated double diaphragm pumps?
Air Operated and Electric Double Diaphragm Pumps for Many Applications. Designed with fewer parts than competitive pumps, Graco’s air operated double diaphragm pumps features our stall-free, low pulsation air valve, which is externally accessible—ensuring rapid changeovers and minimum downtimes.
Why choose Graco’s electric double diaphragm pumps?
Graco’s electric double diaphragm pumps (EODD) are ideal for applications that require low pulsation and a smooth flow. Our energy efficient electric drive reduces energy consumption up to 5x compared to traditional air operated diaphragm pumps.
What makes the Graco Husky 3300 air operated diaphragm pump different?
The Husky 3300 air-operated diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover. The one-piece center section eliminates leaks and reduces maintenance on the Husky pumps when compared to other diaphragm pumps. Graco’s proven quality and leading technology will keep you pumping longer.
What makes the Husky 2200 diaphragm pump so special?
The Husky 2200 air-operated diaphragm pump features a single piece polypropylene center section for increased reliability and chemical compatibility, plus a patented, high-reliability modular air valve that is online serviceable. This diaphragm pump is designed with a reinforced frame for improved r…
