How does a magnetic drive pump work?

A magnetic drive pump uses a balanced magnetic field to create the rotation of the fluid impeller. Unlike a traditional centrifugal pump which has a direct drive connection between impeller and motor, a mag-drive pump eliminates the direct drive mechanism and replaces it with a magnetic field.

What is magnetic drive?

“Magnetic Drive” refers to the coupling between the wet end of the pump and the motor. In direct drive pumps, the impeller of the pump is attached to the shaft of the motor, and this design depends on the shaft seal to contain the chemical.

Are magnetic drive pumps centrifugal?

In a magnetic drive centrifugal pump, the impeller and the pumped fluid are contained within a hermetically sealed housing. The drive shaft from the motor rotates an assembly of magnets on the outside of the housing.

How do you prime a magnetic drive pump?

To prime, pour liquid into the outlet tubing or piping and allow it to fill the pumping chamber. The pump will normally prime with less effort when a foot valve is installed at the end of the suction line; this will also eliminate the need to reprime each time the pump is turned off.

Are mag drive pumps positive displacement?

Mag Drive positive displacement pumps are available for torque requirements to 60 ft-lb, pressure to 300 PSI, and temperatures to 570 degrees F. Precision machined containment vessel components reduce eddy current effects thus improving torque transmission efficiency.

What type of pump is a mag drive pump?

magnetically-driven chemical-process pump
Mag-drive pumps are a design of magnetically-driven chemical-process pump which eliminate the need for shaft sealing. This greatly reduces the initial cost of the pump as well as day-to-day operational costs as there aren’t any mechanical seals, seal-fluid pots, or cooling lines fitted.

What is direct drive pump?

Direct Drive Pumps A “Direct Drive” pump has a hollow shaft, which simply slides onto the drive shaft of a motor or engine. The flange on the pump is mounted to the face of the engine or shaft end of the motor. Normal gasoline engine speed is about 3450 RPM.

Are magnetic drive pumps self priming?

Self-priming pumps effectively solve many pumping problems in a wide variety of applications. Especially when handling toxic, explosive and other dangerous liquids, leakage must be avoided and self-priming applications require special attention.

What is the purpose of priming a pump?

Priming is the process of removing air from the pump and suction line to permit atmospheric pressure and flooding pressure to cause liquid to flow into the pump. Without priming, pumps will cease to function and break down.

What is sealless pump?

A sealless mag drive pump is a conventional centrifugal pump without the dynamic seal that would normally be used to seal the pump shaft. This dynamic seal is replaced by a static containment shell to form a completely sealed liquid end or pressure boundary.

What is magnetic coupling pump?

Magnetically coupled pumps are a combination of conventional pump hydraulics with a permanent-magnetic drive system and a three-phase motor. This system uses the attraction and repulsion forces between permanent magnets in both coupling halves for contactless and slip-free torque transmission.

What does close coupled pump mean?

Close-coupled pumps are characterised by a common motor and pump shaft or by their motor shaft and pump shaft being rigidly connected in a pump casing. The pump casing is bolted to the drive flange rather than being installed on pump feet.