Description, selection and use of hoses for motor pumps

The motor pump is a common technique that is presented on the market in a huge assortment. For the operation of such a device, it is necessary to additionally purchase hoses. Since they are available in several types and are characterized by different technical indicators, it is important to be able to correctly select the type corresponding to the size of the device and the pressure in the system.

A motor pump is a pumping equipment that is often used in utilities, agriculture and construction. In addition, this technique is indispensable in everyday life when pumping water from wells, basements, as well as when working on land. Hoses are considered the main component of such a device, since the performance of the equipment depends on them.

Hoses for a motor pump are outlet and suction. They can also differ in material of manufacture and size. Hoses (hoses) have a multi-layer structure that gives them strength and protects them from tearing.

Special requirements are imposed on the hoses of motor pumps.

• resistant to bending and compression;
• resistant to the pumped liquid;
• adapted for long-term operation;
• convenient to join.

Also, the suction and pressure hoses must be able to withstand both low and high temperatures. As a rule, all sleeves are sold complete with fasteners that simplify installation.

Depending on the purpose, there are several types of pump hoses: suction, pressure and pressure-suction. The suction hoses are responsible for the supply of liquid from the source to the inlet of the equipment. Pressure-suction units are used for both suction and water supply. As for the pressure hoses, they differ from the suction hoses in greater strength, they are able to withstand temperature drops, the chemical effect of liquids and high pressure.

The suction hoses are made of smooth rubber with a textile layer. Pressure-suction heads are produced from flexible plastic, they have a corrugated shape. The pressure hoses are complemented by reinforced metal rings.

All types of sleeves have the same design. It is represented by inner (rubber) and outer (latex) layers, between which a textile frame is placed. In turn, textiles can be single or multi-layered. The more layers, the more durable the hose is considered.

Well suited for pumps as pressure hoses and fire hoses. They are made of nylon, which can withstand severe frosts, and are equipped with a special nut that secures the discharge pipe.Such hoses are durable and easy to use, since the connection head is much easier to use than clamping clamps.

Also, pump hoses are classified by length and diameter. Now on sale you can find sleeves with a diameter of 25, 40, 50, 75, 80, 100, 125 and 150 mm. As for the length, it varies from 4 to 10 m. The sleeves are strictly selected for a specific pump model, since they must correspond to the power of the motor and ensure the performance of the device. So, hoses with a diameter of 25 to 50 mm are more often used for watering small areas. Products with a diameter of 75 mm and more are suitable for larger works.

Reinforced hoses with a diameter of 50, 75 and 80 mm are characterized by increased strength, since their construction consists of silicone, inside which there is a rigid spiral and PVC. In some types of reinforced sleeves, a metal spiral is present. Such products are designed for different fluid pressures.

• 4SP - designed for medium pressure. There are four layers of steel wire in their construction.
• 4RS - used for pumping liquids under high pressure. These hoses have four layers in the form of a strong spiral.
• R12 - withstand medium pressure and high temperature.
• R13 and R15 are wound in six layers, due to which they are resistant to temperature extremes and high pressure.

When purchasing hoses for a motor pump, it is important not only to take into account the reviews about the manufacturer, but also to pay attention to the size of the products. If the diameter of the sleeve differs from that of the branch pipe, the performance of the pumping device will significantly decrease. Also, the hoses must withstand the load when the fluid is supplied. Sleeve length also plays a huge role. The larger it is, the more convenient it will be to operate the pump. Preference should be given to those products that are sold complete with couplings. This saves the cost of additional fasteners and provides the hose with increased durability.

In addition to taking into account external characteristics, before buying, you need to clarify what temperature of the liquid the sleeve can withstand. As a rule, most species are resistant to temperatures from -5 ° C to + 60 ° C. There are also more durable sleeves that are not afraid of harsh conditions. They can be used in conditions from -35 ° C to + 90 ° C.

You will learn more about hoses for motor pumps in the video below.