Drainage pumps are in demand because they allow you to raise clean water from wells to the surface and pump out dirty liquids. They are popular among Russian consumers due to their versatility. The Gnome brand of drainage pumps has received many positive reviews even from specialists in this field.
Device and principle of operation
Gnome is a submersible pumping station, which is most often used to pump out dirty water from tanks, reservoirs, etc. There is a wide range of models on the market with different configurations. There are units designed to work with cold and hot liquid, models with different electric motors.
The design of electric pumps is a monoblock, which includes two important parts: an electric motor and a pumping station.
Pumping station parts:
- body;
- Working wheel;
- diversion.
To pump out water with a high concentration of solid impurities, as well as clay or cement slurry, a filter mesh is installed in the lower part of the unit body.
Drainage pumps Gnome are equipped with an asynchronous electric motor with a stator, cover, rotor and bearing system. The engine cavity is filled with oil, which ensures good lubrication and cooling of the rotating parts.
The upper part of the housing is equipped with a highly elastic rubber collar, which compensates for the expansion of the cooling medium in the event of overheating of the unit. The motor itself is cooled while pumping out the water with the water itself.
The rotor speed of all Gnome models is 3000 rpm. The stator is equipped with built-in thermal fuses that automatically shut down the station in case of overheating. It is recommended to disconnect it from the power supply until it cools completely.
The start-up of the equipment is carried out by a starter, which is located on the power cord. Also, the unit is additionally equipped with a condenser and an automatic device that automatically turns off the pump in case of overload.
Immerse the unit in liquid before starting. Duration of idle operation should not exceed 15 minutes.
The principle of operation is based on centrifugal force, which is generated by the rotation of the impeller.
Application area
Like other types of submersible pumps, Gnome is used in all industries and for domestic purposes for pumping and cleaning:
- industrial fluids;
- water from swampy or polluted water bodies;
- domestic waste water, excluding fecal matter (due to technical limitations, the equipment is not intended for pumping liquids with a high concentration of solid impurities);
- groundwater.
The pumping drainage station is widely used in the following areas of human life:
- on personal plots;
- at utilities;
- in rural industry.
In order for the equipment to realize its tasks, it is necessary to choose the right pump, based on the required criteria.
Types of pumps and their technical characteristics
The models are divided into four large groups:
- Domestic pumping stations used for pumping water in personal plots or private houses. If you need equipment for water supply and sewerage in a country house, you need to choose a model from this group.
- Powerful units used in utilities, construction and industry. Performance indicators reach 600 m3 / h. control equipment using a control panel, which is purchased separately or installed during installation.
- Explosion-proof equipment is used in the oil production and processing industry, energy and chemical plants. The price of such models is very high.
- Self-cooled pumps are used for full and partial submersion under water. The peculiarity of the group lies in the structural characteristics of the case, they are called "cooling jacket".
The most common models are Gnome 10/10 and Gnome 10/10J They are intended for work in summer cottages, country houses, in the field of private construction. They work from a single-phase network.
Dwarf 10 / 10_380
The model is a monoblock single-stage mud water pump. Designed for pumping clean or contaminated liquids with a maximum size of solid impurities of 10 mm, concentration no more than 1.1 t / m3.
Works with liquids, the temperature of which does not exceed 40 degrees. The system is mobile, which is an advantage. Models are equipped with a carrying handle.
Specifications:
- The impeller, casing and wet end are made of aluminum.
- The electric motor is asynchronous, there is a built-in thermal protection.
- E - protection class, degree IP X8.
- The 220 W models are equipped with a float switch.
- The length of the mains cable is 10 m.
- There is a double shaft seal on the front side of the pumping station.
- Maximum water supply 16 cbm / hour.
- The mass of the pumping station is 11.5 kg.
- The head at the outlet is 50 m3 / h.
The cost on the Russian market starts at 7,000 rubles. In order not to purchase a fake of dubious quality, you need to contact official representatives or large specialized stores.
When making a purchase, it is important to check the availability of a passport and operating instructions, and a warranty card with a detailed description of the characteristics is also standardly attached.
Advantages and disadvantages of Gnome submersible pumps in comparison with analogues
- The unit is equipped with a cleaning filter, which significantly extends the service life of the device. As it gets dirty, it can be removed and cleaned.
- A high degree of maintainability, as well as the ability to purchase the necessary spare parts at an affordable price.
- A wide range of models allows you to purchase a model of the required configuration.
- The device is equipped with a circuit breaker that protects the entire mechanism from overload and short circuit. Thanks to this design feature, the owner does not need to regularly monitor the operation of the unit.
- The user has the opportunity to refuse to install reverse or shut-off valves.
- Easy to use, install and maintain regularly. No special knowledge is required to operate an electric water station.
If you use the drainage pumps Gnome exclusively for pumping out contaminated water, there are practically no analogues of such equipment.
