Water supply input node from the main network

The minimum requirements for entering water into an apartment are usually the following: a shut-off valve without a squeegee, a coarse filter, a water counter, check valve.

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1 - The main shut-off valve

2 - Coarse filter

3 - Pressure regulator

4 - Water meter

5 - Check valve

6 - Distribution manifold

Water supply input unit with additional protection

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1 - Main shut-off valve

2 - Electric shut-off valve

3 - Coarse filter

4 - Pressure regulator

5 - Water meter

6 - Check valve

7 - Additional water purification filter

8 - Distribution manifold

9 - Water hammer compensator

10 - Protection control unit

11 - Water leakage sensors

Devices and elements of the input unit

  1. The main shut-off valve is a valve designed to shut off the water supply completely.

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  1. An electric shut-off valve is one of the main elements of the water leakage protection system. They can be wireless and wired. They fire after a signal from the control unit and shut off the water.

The leakage protection system is an optional element. It is required to minimize the risk of a flood. If the domestic water supply fails, the water will fall on sensors. Sensors will send a signal to the protection control unit, which, in turn, will give a call to the electric shut-off valves to stop the water supply.

  1. Coarse filter. Such filters are installed in front of metering devices or at the entrance to the house. It cleans water mechanically (with a mesh) from coarse dirt particles. The presence of a removable bottom or side hatches allows cleaning the filter element made of mesh fabric without completely dismantling the device. It is installed strictly by the arrow on the product body and the cylinder down.

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  1. A pressure regulator is a valve that maintains normal water pressure. Sudden changes in pressure can ruin the technique. The reducer mechanism can change the force of the fluid supply to the average level or increase it.

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  1. The water meter measures and accounts for volume water. The volume is measured in cubic meters or liters.

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  1. Check valve passes water in one direction and prevents it from moving in the opposite direction. It has a spring-loaded diaphragm, which allows water to pass only to one side. In the event of loss of pressure in the system, it blocks the passage, thereby preventing water leakage. Also, this device minimizes the claim of air entering the water supply system.

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  1. An additional flushing filter protects the system from tiny particles of dirt. Solid particles settle to the bottom of the flask. It requires periodic cleaning.

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  1. A distribution manifold allows you to connect pipes separately for each consumer. In the collector system, all consumers receive an equal amount of water.

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  1. Water hammer compensator - designed to prevent water hammer.

A water hammer is a sharp water pressure increase, which occurs when a sharp change in the speed of movement of the liquid.

Water hammer occurs when the damper is suddenly closed. Do this slowly and gradually.

It has a membrane or spring inside that divides the container into two compartments. One contains water, and the other contains compressed air or gas. If the pressure builds up in the system, some of the water enters the reservoir. After the pressure has equalized, the excess water is pushed back into the pipeline using compressed air/gas.

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Spring hydraulic shock absorber
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Diaphragm shock absorber
  1. The protection control unit receives a signal from water leakage sensors and transmits it to the electric shut-off valve to close the water supply. It can be equipped with sound signaling and notification to the user's phone.
  2. Water leakage sensor. It is a signaling device capable of detecting a water spill.

Additional elements and devices of the input unit

Bypass is a pipe with shut-off and control valves. It creates a parallel flow of working fluid bypassing a specific device in the system. It allows flushing the filter in the reverse direction.

An electric water heater represents a device for heating water due to the energy received from the mains. A tubular water heater heats the water. In the event of a hot water shutdown, it acts as a backup source.

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The additional filter of mechanical cleaning removes sand, rust, clay, magnesium, and calcium salts from the liquid.

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