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Pressure control unit. Adjustment of the pressure switch for the pump of the water supply system - setting the on and off levels. Correct installation of the device

Reading 5 min.

Gileks automation is multifunctional, easy to install and affordable. It can work with both native pumps and pumps from other manufacturers to automate the water supply.

The company offers reliable and modern options automation for the pump, having a long service life and good performance. Let's take a closer look.

Total pump automation

We start the automation as follows:

  1. Immediately before turning on the device, we completely fill the inlet pipe of the pump with water and start it (the “Network” LED should light up). This manipulation will turn on the automation unit. As soon as the pump starts to work and, after a while, stops, you need to open the outlet valve, which is located at the highest point.
  2. If the pump runs all the time with the tap open, and provides a continuous flow of water, the installation is considered correct. The lack of water flow indicates that you need to hold down the "Restart" button and keep it for the duration of the response time automatic system. If the flow is still missing during such manipulation, you need to repeat the launch.

Idle protection

When the “Protection” LED lights up on the automation unit, and the pump itself is turned off, this may indicate the danger of idle operation of the system. This is how press control works.

Recheck all systems again. If everything is in order - let the water out of the incoming system, and fill it again. Then click the "Reboot" button.

Optimal characteristics of automation for pumps

Vibrating or any other type of pump can be additionally equipped with automation systems. But, they have different parameters, properties, etc. Which ones are worth buying?


Technical indicators (optimal):

  • Operating voltage = 210-250 V;
  • Frequency = 40/70 Hz;
  • Minimum working pressure = 1-4 atm.;
  • Load current = 6-10 A;
  • Water flow rate = 70-100 l/min;
  • Upper pressure threshold = 15 atm.;
  • Maximum water temperature = 75 degrees;
  • Inlet pipe diameter = 1 inch;
  • Degree of protection = 1P65.

What do you need to know?

Important! The valve located on the pipe section between the automatic / pumping systems, and the valve running on the outlet pipe of the automatic unit, are the culprits in equipment malfunctions.

The minimum working pressure of the equipment cannot be changed independently. This should be done by electricians who have experience, are familiar with regulatory documentation and comply with safety standards.

The maximum working pressure is not regulated by automation. It corresponds to the indicator of the electric pump.

Automation mechanisms for the pump are used to ensure autonomous operation of devices with the setting of a suitable mode. In addition, high-quality automation protects the pumps from dry running and saves energy consumption. This approach allows you to extend the life of expensive pumping equipment.

A feature of automation from the Gileks company is the ability to use devices both with branded models and with devices from other manufacturers. In addition, inexpensive equipment has a number of other useful properties.

1 Features of the control unit

The main element of automation of the company's pumping process is the Gileks automation unit. Such a device is connected directly to the pumping apparatus and reacts to the pressure level in the system.

The Jilex block consists of a plastic case with a metal lid. Inside the housing there is a spring, an electronic unit equipped with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control of the operation of the device, a manometer is mounted in the side surface of the block.

The device is designed to operate on the basis of pumping station or other surface pump pumping clean water. Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.

1.1 How the instrument works

Gileks automation operates independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works for a few seconds. Further, the device turns off and is activated only in the event of a change in pressure in the line.

When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure is reached, activates the electric pump. The appliance pumps water until the pressure equalizes again (when the tap closes). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. Such a measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.

1.2 HOW DOES THE JELEX AUTOMATIC UNIT WORK? (VIDEO)

2 Correct installation of the device

Automation Dzhileks 9001 is installed in the supply line complete with additional equipment. Therefore, an important step is correct installation and setup of all components. Installation of the pressure control automation unit from Gileks is carried out in the following order:

  1. First of all, if a modification without measuring instruments is purchased, you should purchase a pressure gauge and install it on the side panel. The mechanism is necessary to control and manage the block.
  2. The automatic device itself crashes into the water supply line in the area between the water consumption point (faucet) and the pumping device. The unit is installed exclusively in a vertical position, with the blue metal cover up. In this case, the inlet of the device (indicated in the instructions) should be located on the side of the pump outlet. The outlet port conducts the water further into the supply line.
  3. After the control apparatus is mounted in line, it is necessary to carefully inspect all joints and connections for tightness. If errors are found during installation, they should be sealed with sealant or connecting elements.
  4. The unit is connected to the network strictly according to the scheme specified in the instructions. Moreover, if the device is equipped with a pump with a current of more than 10 amperes, a magnetic starter is additionally installed. The main requirement for the electrical cable used with the device is increased resistance to high temperatures.

If necessary, the supply line is supplemented with filters for water purification and a receiver for equalizing pressure in the system.

After all the components are mounted in the trunk, it is necessary to check the device. To do this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping unit. The device works for several tens of seconds and then turns off.

After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then preferably the top one). There are two options for this:

  1. In the first case, water will flow from the tap in a continuous, uninterrupted flow. The unit turns on, and the pumping device works throughout the entire period of use of the crane. In this case, the installation of the device is correct.
  2. If the water flow is not stable or does not exist at all, you can try to restart the device with the "Restart" button. The button is pressed and held until the pumping device works. If nothing has changed in this case, a thorough inspection of the device and the entire line is carried out, and if necessary, dismantling and adjustment.

3 Pump units compatible with the unit

Automation from Gileks is a universal device. With it, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.

The device works most effectively in combination with pumping devices that meet the following characteristics:

  • current strength in the range of 6-10 A;
  • device productivity up to 100 l/min;
  • voltage not higher than 250 V;
  • the maximum temperature limit of the pumped liquid is 75 degrees;
  • connection to a pipe with a section of 1 inch.

4 What other automation options does Gileks have?

In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Gilex Crab. The device is responsible for stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element cleans the flow from solids.

Gilex Crab consists of the following components:

  • polymer hydraulic distributor;
  • tank receiver with a volume of 24 or 50 liters, covered with anti-corrosion enamel;
  • electric pressure switch;
  • a filter with a replaceable cartridge, which is responsible for cleaning the water stream from impurities;
  • manometer;
  • two electrical cables;
  • special bracket for fixing the unit to the wall.

The device operates on the basis of a standard 220 V electrical network. Suitable for connecting 2-3 water intake points at the same time. adjustable relay allows you to set the pressure level that the device will maintain before starting work. Like the previous type of device, Crab 50 is a universal device and is suitable for connection to borehole pumps of any manufacturer.

4.1 Pressure switch RDM-5

More simple option automation of a pumping station is the installation of a special relay RDM-5 on it. The compact device is mounted in the line and connected to the pumping unit using an electric cable. The wire is fixed to the relay contacts.

The principle of operation of the device is as follows. The device reacts to the level of pressure in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The power supply to the downhole tool is interrupted and it turns off.

The minimum and maximum indicators at which the pumping device is triggered are set by the user. You can adjust them using two nuts that fix the degree of spring tension. A larger nut, when rotated counterclockwise, sets the maximum pressure indicator, a smaller nut, when rotated, allows you to adjust the difference between the maximum and minimum pressure.

RDM-5 is designed for use exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the pipeline with a section of ¼ inch. A prerequisite for using RDM-5 is high-quality grounding.

4.2 Float switch

For drainage, fecal and surface water pumps, the cheapest and most practical way to automate is the float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.

The design consists of an electric cable 3,5,8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a shift lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.

In the version with two wires, they are directly connected to the float contacts. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.

In models with three wires, the ability to turn on the fence point in the extreme upper and in the extreme lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.

The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water drops below normal.

The pressure switch is a small but indispensable unit of a large and small pumping station. And if all its other elements just need to be connected correctly, then it will also have to be additionally configured. It is this device that is responsible for automating the pumping process. It turns on and off the equipment according to the pressure in the hydraulic tank.

Properly performed adjustment of the pressure switch for the pump is a guarantee of comfort and long service life of the equipment. About how it is performed, what actions need to be taken and what data to know for fine-tuning, we detail in the article. You will find out why and in what situations it is produced.

Except step by step description adjustment procedures, we provide valuable recommendations communicated by hydraulic engineers. To optimize perception, the text is supplemented with photo collections, diagrams, video guides.

Numerous varieties, which are equipped with almost all pumping stations, are arranged in approximately the same way.

Inside the plastic case there is a metal base on which the rest of the elements are fixed:

  • membrane;
  • piston;
  • metal platform;
  • electrical contact assembly.

On top, under the plastic cover, there are two springs - large and small. When the diaphragm is under pressure, it pushes the piston.

He, in turn, raises the platform, which acts on a large spring, compressing it. A large spring resists this pressure, limiting the movement of the piston.

The small distance that separates the large and small adjusting springs is enough to regulate the operation of a whole range of devices. The platform under pressure from the membrane gradually rises until its edge reaches the small spring. The pressure on the platform at this moment increases, as a result, its position changes.

Image Gallery

One of the most important control elements of a water pumping station is a pressure switch. It provides automatic switching on and off of the pump, controlling the water supply to the tank according to the specified parameters. There are no clear recommendations on what the values ​​​​of the lower and upper pressure limits should be. Each consumer decides this individually within the limits of permissible norms and instructions.

The device and principle of operation of the water pressure switch

Structurally, the relay is made in the form of a compact unit with maximum and minimum pressure springs, the tension of which is regulated by nuts. The membrane connected to the springs reacts to changes in the pressure force. Upon reaching the minimum value, the spring weakens, at the maximum level, it is compressed more strongly. The force exerted on the springs causes the opening (closing) of the relay contacts, turning the pump off or on.

The presence of a relay in the water supply system allows you to provide a constant pressure in the system and the necessary water pressure. The pump is controlled automatically. Properly set, they ensure its periodic shutdown, which contributes to a significant increase in the period of trouble-free service.

The sequence of operation of the pumping station under the control of the relay is as follows:

  • The pump pumps water into the tank.
  • The water pressure is constantly increasing, which can be tracked on the pressure gauge.
  • When the set upper pressure limit is reached, the relay is activated and turns off the pump.
  • As the water pumped into the tank is used up, the pressure decreases. When it reaches the lower level, the pump will turn on again and the cycle will repeat.

Device diagram and components of a typical pressure switch

The main parameters of the relay operation:

  • Lower pressure (switch-on level). The relay contacts that turn on the pump are closed, and water enters the tank.
  • Upper pressure (off level). The relay contacts open, the pump turns off.
  • Pressure range - the difference between the two previous indicators.
  • The value of the maximum allowable shutdown pressure.

Setting the pressure switch

During the assembly process of the pumping station, special attention is paid to setting the pressure switch. The ease of use, as well as the terms of the trouble-free service of all components of the device, depend on how correctly its limiting levels are set.

At the first stage, you need to check the pressure that was created in the tank during the manufacture of the pumping station. Usually, at the factory, the on-off level is set to 1.5 atmospheres, and the off level is 2.5 atmospheres. This is checked with an empty tank and the pumping station disconnected from the mains. It is recommended to check with an automotive mechanical pressure gauge. It is placed in a metal case, so the measurements are more accurate than using electronic or plastic pressure gauges. Their readings can be affected by both the air temperature in the room and the level of battery charge. It is desirable that the scale limit of the pressure gauge be as small as possible. Because on a scale of, for example, 50 atmospheres, it will be very difficult to accurately measure one atmosphere.

To check the pressure in the tank, you need to unscrew the cap that closes the spool, connect a pressure gauge and take a reading on its scale. The air pressure should continue to be checked periodically, for example once a month. In this case, water must be completely removed from the tank by turning off the pump and opening all taps.

Another option is also possible - carefully monitor the shutdown pressure of the pump. If it has increased, this will mean a decrease in air pressure in the tank. The lower the air pressure, the more water can be created. However, the pressure spread from a completely filled to a practically empty tank is large, and all this will depend on the preferences of the consumer.

Having chosen the desired mode of operation, you need to set it by bleeding excess air for this, or pump it up additionally. It must be borne in mind that one should not reduce the pressure to a value of less than one atmosphere, and also pump it too much. Due to the small amount of air, the rubber container filled with water inside the tank will touch its walls and be wiped. And excess air will not make it possible to pump in a lot of water, since a significant part of the tank volume will be occupied by air.

Setting the pump on and off pressure levels

which are supplied assembled, the pressure switch is pre-configured according to best option. But when it is installed from various elements at the place of operation, the relay must be configured. This is due to the need to ensure an effective relationship between the relay settings and the volume of the tank and the pump head. In addition, it may be necessary to change the initial setting of the pressure switch. The procedure for this should be as follows:


In practice, the power of the pumps is chosen such that it does not allow pumping the tank to the extreme limit. Typically, the cut-off pressure is set a couple of atmospheres above the turn-on threshold.

It is also possible to set pressure limits that differ from the recommended values. In this way, you can set your own version of the operating mode of the pumping station. Moreover, when setting the pressure difference with a small nut, one must proceed from the fact that the starting point of reference should be the lower level set by the large nut. You can set the upper level only within the limits for which the system is designed. In addition, rubber hoses and other plumbing also withstand pressure, not higher than the calculated one. All this must be taken into account when installing the pumping station. In addition, the excessive pressure of water from the tap is often completely unnecessary and uncomfortable.

Pressure switch adjustment

Adjustment of the pressure switch is practiced in cases where it is necessary to set the levels of upper and lower pressures to the specified values. For example, you want to set the upper pressure to 3 atmospheres, the lower - 1.7 atmospheres. The adjustment process is as follows:

  • Turn on the pump and pump water into the tank to the pressure on the pressure gauge of 3 atmospheres.
  • Switch off the pump.
  • Open the relay cover and slowly turn the small nut until the relay operates. Turning the nut clockwise means an increase in pressure, in the opposite direction - a decrease. The upper level is set - 3 atmospheres.
  • Open the tap and drain the water from the tank to the pressure value on the pressure gauge of 1.7 atmospheres.
  • Shut off valve.
  • Open the relay cover and slowly turn the large nut until the contacts actuate. The lower level is set - 1.7 atmospheres. It should be slightly higher than the air pressure in the tank.

If asked high pressure to turn off and low to turn on, the tank is filled with a large amount of water, and there is no need to turn on the pump often. The inconvenience arises only because of the large pressure difference when the tank is full or almost empty. In other cases, when the pressure range is small, and the pump often has to be pumped up, the water pressure in the system is uniform and quite comfortable.

In the next article, you will learn the most common connection schemes.