In what environments are magnetic pumps and shielded pumps suitable respectively?

Personally, I think a magnetic pump can be used in general situations, as the requirements are more or less the same; only a small number of magnetic pumps can handle materials containing impurities, while shielded pumps definitely cannot handle such materials. It mainly comes down to investment.

Both magnetic pump and shielded pump are leak-free pumps; relatively speaking, magnetic pumps are more widely used at present, due to factors such as their structure, price, and ease of maintenance and disassembly.

Usually, there are more toxic and harmful options

The main purpose is to provide isolation; since the pump shaft and internal magnetic rotor of the magnetic pump are completely enclosed by the pump body and isolation sleeve, this approach completely eliminates the problems of leakage. It removes the safety risks associated with the leakage of flammable, explosive, toxic, and harmful substances in the oil refining and chemical industries through pump seals, thereby ensuring the physical and mental health of workers as well as safe production. Diaphragm pumps, also known as control pumps, are the main type of actuator, operating by receiving control signals from a modulation unit. Diaphragm pumps use power to regulate fluid flow. Diaphragm pumps are available in four materials: plastic, aluminum alloy, cast iron, and stainless steel. Electric diaphragm pumps are available in four materials: plastic, aluminum alloy, cast iron, and stainless steel. Diaphragm pumps use nitrile rubber, neoprene, fluororubber, polyvinylidene fluoride, and polytetrafluoroethylene depending on the different liquid media. To meet the needs. Installed in various special situations to pump fluids that conventional pumps are unable to handle.

The difference between magnetic drive pumps and shielded pumps is not that of diaphragm pumps

Nothing is leaked. Shielded pumps have higher requirements – there must be no particulate impurities – and they are more expensive. Magnetic pumps are widely used and do not have very high requirements