Best float switches for 2020

So that the operation of electric pumps is not accompanied by a large number of errors, it is necessary to install a water level sensor. The device is capable of monitoring the operation, as well as preventing the operation in a "dry run". It is important to devote a lot of time to the choice of this product, because the durability and reliability of the product depends on the quality of performance. Therefore, the editors of the site "bestx.htgetrid.com/en/" have prepared for you a rating of the best float switches for 2020.

Appointment

Almost every pump is equipped with special devices that monitor the correct operation and prevent malfunctions. One of the most popular and effective controls is a float switch. The main feature of the product is its functionality and practicality. It can work not as an actuator, but also as a water level sensor, while being placed in any container.

One container can contain up to 3-4 float switches, while they will solve certain tasks:

• Monitor the correct operation of the main pump;
• Disconnect equipment in an emergency;
• Facilitate the operation of the auxiliary pump;
• Completely replace some sensors to save space.

With such a product, the pump will always be protected against dry running, which will prevent rapid wear and tear. In addition, if a person fills a large reservoir, the switch is able to monitor the water level and prevent overflow. The equipment is sold in two versions: heavy and light. The first is recommended to be installed in drainage or rainwater drains, and the second is suitable for standard work with clean water. The length of the cable is different for everyone, the minimum value is 2 meters.

Design features of the device

The product is housed in a plastic case that is protected from water penetration. There is a lever and an electrical switch inside. Some designs are equipped with a steel ball. The main task of this element is to monitor and change position when the position of the device itself changes. The last element is a cable, which consists of three wires, where one is common (black), and the rest are connected to the contacts.

When the device is placed at the bottom of a vessel or tank, the closure is carried out by means of a black and blue wire. If the device is located at the top point, then the contacts will close brown and black. It is important to remember that all wires must have high-quality insulation, no cracks are allowed.

It is necessary to ensure that the supply cable has high moisture-proof properties, this is often indicated in the technical passport of the device. A tight seal is achieved with a mechanical seal. Also, the product is equipped with a special element that prevents the occurrence of mechanical stress. To get rid of leaks, manufacturers add polymer resin, the sensor does not become more expensive, but its safety increases significantly.

Cables made of thermoplastic rubber are capable of withstanding chemical and temperature effects. For example, the device will function properly, even when it interacts with:

• Alcohol;
• Gasoline;
• Organic acid;
• Feces.

Due to the fact that the product has no pores, no elements interfere with its performance. Sand or paper does not remain on the surface, which positively affects the buoyancy of the device.

The main characteristics of the float switch include the following parameters:

• Current limit;
• Rated voltage of the network;
• Active load, these include starters, heating elements, light bulbs, etc. devices;
• Reactive load. This takes into account the operation of the pump and compressor;
• Minimum and maximum temperature values;
• Protection class.

Equipment advantages

One of the main advantages of this device is the ability to function as a standard water level sensor. The product performs this function regardless of the main purpose. Thanks to this solution, it is easier for a person to use an electric pump, in addition, the product simplifies the control of some water supply systems.

The second feature of the device is the ability to function as part of the main equipment in the design of sewer systems. Due to its simple design and high efficiency, the product has received high demand in areas where it is necessary to constantly monitor the liquid level. This not only prevents the pump from running dry, but also prevents the water level from rising.

What is important to know about installation?

Depending on the purpose, the installation method may be different. However, before installing the device, you should know that operation is not allowed only when the rated current value is several times higher than the maximum. The parameter is indicated on the box and in those. device passport. The easiest way to place the switch is to place it in the tank. To do this, you need to equip it with a special weight and make sure that the structure is designed for this use.

The sinker must be fixed on the cable, this element is often present in the kit, so it is not necessary to look for scrap materials. After fixing, the free stroke should be calculated, it is recommended to do this in a practical way, so the readings will be more accurate. Once the user has finished the calculations, it is necessary to install the cable on the outside of the tank. The last point is connecting to pumping equipment.

There is another method that is often used in households - using a lead-in cable. This option is easy and does not require any calculations, the only thing to remember is that there should not be other sensors or elements inside the tank that the equipment can catch on to.

In some cases it is necessary to install several float switches. Each device is fixed on a special rod made of plastic and installed inside the container. The floats must not only fit, but must also be properly set and well placed on the structure. The accuracy of work depends on this. The wires that come from the breaker body are fixed with ordinary clamps. The number of sensors directly depends on the number of pumps installed.

How does the switch work?

Despite their clear design, devices may differ in the way they function:

• Device for water supply systems. This is the simplest and most common way to operate the product. The principle of operation is simple, when the product is on the surface, the pump starts pumping water from the container. The sensors automatically send an electrical signal to the pumping equipment. The station shuts down when the switch reaches the bottom.
• The principle of work in the sewer system. The activation of the fecal electric pump occurs when the main control device rises to the surface.Ancillary equipment begins to function when the sensor sinks to the bottom. It is important to know that one such float is capable of working with two pumping devices at once. At the same time, this does not affect the quality in any way, the performance remains at the level. In addition, the dual pump circuit is highly efficient because there is no problem with fluid delivery.

Correct operation and maintenance

Compliance with the basic recommendations for use ensures a long service life of each device. The switch is maintenance-free only when placed in plumbing systems. But, when the product functions in the sewer, then it must be inspected and cleaned at least once a month. For this, a strong jet of water is used, which instantly removes the resulting dirt. This is important as it prevents the float from sticking. If the device breaks down, it is more advisable to buy a new one or replace it at a service center. It is prohibited to carry out repairs on your own without special equipment. Because the tightness of the case is broken.

The device works properly at temperatures of 0 ... 60 degrees. There are some manufacturers who produce a structure that can withstand up to 70^about, which allows you to expand the scope of the switches.

The length of the cable plays an important role as it determines where the product will be used. If a person buys a 2-meter version, then it is recommended to operate it only in small tanks. For wells and some storage tanks, you should purchase products with a wire length of 5-6 meters.

Rating of the best budget floats

Energy TSY-5

A quality option that is designed to automatically control the water level in various containers. Also, the model will help to monitor the correct operation of the pumping device and turn it off in the absence of liquid. The design is practically no different from the standard options. Maximum current - 16 A. Protection class - IP68. The estimated service life, if properly used, is 10 years.

Sold at a price: 440 rubles.

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WWQ FS

A versatile device that can be installed for any purpose. The device has a robust plastic housing and a long cable. The maximum load is 4 kW, while the rated current is 4 A. The tightness is at the highest level, so neither dust particles nor water will penetrate into the product, which ensures high durability and trouble-free operation.

The average price is 440 rubles.

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KITLINE 11000

An excellent model that monitors the liquid level and allows you to turn off the pumping equipment in a timely manner. The weight of the structure is 100 grams, while the cable length is 3 meters, which is suitable for small tanks. Made of durable plastic that can withstand light mechanical stress.

The outer part is completely smooth, which prevents the accumulation of solid elements. Weights are included and installed in the standard way: using a special clamp. The dimensions of the device allow it to be placed in any container. The insulation was done with high quality, no cracks were found.

Sold at a price of 580 rubles.

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Rating of circuit breakers in the middle value segment

WATTS IGD

A quality product from a German manufacturer that is capable of functioning for ten years, while not requiring complex maintenance. Supplied in a plastic case that is well sealed and does not allow water and dust to pass through.

The maximum working temperature is 60 degrees. Thanks to the high-quality material, the product can be used even when pumping gasoline, while the outer layer is not destroyed.

The average price is 1,900 rubles.

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Marco AS2

A good product made in Italy, which has a long service life and reliability. The main advantage of the device is the ability to control a small water level (from 20 to 50 mm). This is not found in every design, which makes the product unique.

The body is smooth and free of any irregularities, which allows it to be used in any system. The outer part is made of impact resistant plastic, which is also a good solution. Working current - 10 A.

Sold at a price: 1 900 rubles.

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Wilo WA 65

A quality product with a 5m cable suitable for installation in various tanks. The insulation is made at a high level, which prevents accidental breakdown and leakage. The body is made of durable material that can function at 55-60 degrees. The set includes a special weight.

The average price is 2,000 rubles.

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Rating of premium models

Grundfos GIFAS-FS-E

An expensive and high-quality device that is suitable for sewerage and water supply systems. The device is capable of operating simultaneously with two pumps. The body is made of durable material that can withstand temperature extremes. Working voltage is standard.

The average price is 3,500 rubles.

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Pedrollo T80 / 10

A high-quality float switch that is able to function for a long period without deterioration or clogging. The design is standard, the product is a "float-frog". Electric switch. The body is connected to the sinker with a contact cable.

The average price is 3 600 rubles.

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Wilo MS 1

An expensive product for professional use where precision is important. The body is made of polypropylene, which has good wear resistance and durability. The outer part is completely smooth, which eliminates the chance of contamination. The insulating element is of high quality.

Sold at a price: 5 350 rubles.

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Finally

The float switch is one of the main elements, therefore special attention must be paid to its selection. Because the correct operation of pumping equipment depends on the quality of this product. If you have experience using the models described in the rating, or more interesting options, tell us about it in the comments.