The main varieties of the circulation pumps

Circulating pumps are a very important element of the water and heating systems, their main task - to ensure the effective circulation of fluid in the system. On sale today there are many different brands of pumps. Buy such equipment you can on this website. For heating systems use two types of equipment: pumps & quot; dry & quot; or with built-in & quot; wet & quot; rotor.

Pumps with built-in & quot; dry & quot; rotor.

The principle of operation of this device is as follows: in the process steps pump motor is not in contact with the water being pumped through the system. For devices with built-in & quot; dry & quot; rotor include monoblock, Console, Inline-pumps.

In the latter case, the distinguishing feature is the presence of the mechanical seal, which makes the pump very tight. Increase equipment life, such a pump may well serve without special maintenance three to four years.

Pumps with a & quot; wet & quot; rotor.

This type of pumps with characteristics opposite to the first group of products: motor is fully submerged in water, he will deliver. Pumps with a & quot; wet & quot; rotor is used for many years, they are particularly prevalent in countries where there is a decentralized heating system.

It operates the equipment as follows: water cools the motor shaft bearing, with its constantly oiling. Housings such pumps are mainly made of iron, the equipment bearings - ceramics.

Doubtless advantages of pumps & quot; wet & quot; before the rotor pump rotor & quot; dry & quot; They are: quiet operation, long service life, reliability, durability. This device does not require periodic maintenance while pump with a & quot; dry & quot; the rotor can not do without the service once every few years, a number of models, it is necessary once a year.

Have pump with integrated & quot; wet & quot; rotor and a major drawback: a very low efficiency, which is 10-50%. Pumps with built-in & quot; dry & quot; rotor have a much higher coefficient of - from 40 to 80%. For this reason, this type of circulation devices increasingly being used in a fairly large-scale heating systems.