Why do you need a water pump check valve?

In order for the water supply system in a private house to function correctly, it is necessary to correctly install it, not missing the little things. For example, an unobtrusive but very important device is a water check valve for a pump. If this element is missing or becomes unusable, then the water pumping station system will not work correctly. Water will flow into the house with a noticeable delay, the pressure will be poor, and if the pump is weak, it will completely disappear. The presence of the valve allows you to get water instantly after you turn on the tap.

Product appearance

Water check valve for pump: principle of operation

This device is most often installed at special stations that are included in the water supply system. The task of this element of the system is to prevent mixing of water. It works according to the following principle: the liquid can pass only in one direction, it cannot go to the opposite part of the pipe. This is necessary so that water from a well or well cannot come back and be directed into the water supply system. If the system is equipped with such a valve, then when you open the tap, you do not need to wait for the pump to pump water: it will pour out immediately. In the absence of a device, air accumulates in the system, and you have to first release it, waiting for the water to flow.

Threaded part of the part

The station itself can be located both on the surface of a well or well, and in a specially designated place in the house. In this case, a pipe equipped with a debris mesh and a water check valve for the pump will be lowered into the well.

If the pump is used in a city apartment, then this element allows you to avoid the effect when, when opening one tap, the pressure drops in the other. This design in the apartment will not hurt if installation is planned boiler... It will need to be mounted not only on a cold, but also hot water riser. This will help prevent loss of heated fluid.Without this device, some of your water will go to the neighbors who live on the floor below. Thus, the check valve saves energy as it saves the system from unnecessary losses.

Installation diagram

Check valves for pumping stations: design types

On sale you can find a large number of similar devices that differ in design, material, size, and each has its own characteristics during installation:

Valve principle

Ball product device

Disc element design

Disc and double-leaf attachments

In everyday life, a part with a lifting type of mechanism is most often used. It can be repaired by replacing the spring.

Installation diagram for the station

Check valve spring coupling: types by material

Products can be made from different materials:

Brass valve body

Cast iron body

Stainless steel body

Reverse type universal attachment with strainer

Differences in mounting method

Most devices are attached with a sleeve. This requires two threaded transitions to match the size of the pipeline. Flanged mountings can also be used. Most often they have large diameter cast iron elements. These flanges are bolted together. This type of fixation is also relevant for small products when there is no room for other fixing on the pipe.

Flange connection is one of the best options

The spring loaded check valve is the most commonly used. It is used in apartments for installation on a pipeline, a water heater, such products are installed after the meter, which does not allow it to spin in the other direction. Devices of this type prevent the pipes from emptying if the water in the riser is drained.

Spring mechanism device: it consists of a brass body that can be disassembled into two parts. A movable spool is placed between the halves. It's usually made of plastic. Such a spool is driven by water pressure and a spring.

Spring elements: body and interior

Related article:

Check valves for submersible pumps: installation rules

Before starting the installation, you need to choose the right place where the part will be installed. The location is dictated by the type of submersible pump. You can pick up any element, it will interact with the device, regardless of its type, brand and model. This is due to the fact that the principle of operation of the equipment is the same. It is quite possible to replace check valves for submersible pumps yourself, for this you will need to carefully study the proposed material.

Pump connection diagram

Most pumps are already equipped with the required part from the factory. There is such a device at both the inlet and outlet. Additional devices are not required for such devices.

If you purchased a vacuum pump, then the check valve must be installed in front of the accumulator, but after the unit itself. Ball or spool fittings work best with this type. If the pump is superficial, it can have several such elements at once. One of them is installed in the hose through which the water flows. The part must be placed at the end of the hose, which is lowered into the water. The second element is mounted in front of the accumulator. Any type of product is suitable for such a device. Some models are an exception; the manufacturer indicates in the instructions for the device which are required.

The composition of the water pressure system

In order to install the reverse element, you will need to cut it into the pipe. To do this, you need to purchase fittings and couplings. Before starting work, the water must be shut off or the system must be stopped so that the water flows do not interfere. Then the desired element is cut into the right place.

Elements for pumping stations are installed after the ratchet. Place them on the main suction pipe. It is possible to install it directly in front of the station, but this option is inferior to the first in quality, since in this case the amount of water can be significantly reduced.

The pipe can be filled not only with water, but also with air, which is sucked in by the pump. Air trapped in the system will make it noisy. If the station uses a vibrating pump, the valve is best placed in front of the receiver. You can choose for this any place in the injection pipe, but it is advisable to place it in a place accessible for maintenance.

Part attached to station piping

The object is most often mounted in front of the station. When installed on a running system, it needs to be positioned between the pump and the station. The same is done if the system has a receiver. The pipeline is divided into two parts, on one of which a valve is placed. Then, using a squeeze, the pipes are connected again.

You can familiarize yourself with the installation process for different types of equipment below:

Water check valve prices for pump: manufacturers review

Tips & Tricks

When choosing a check valve, you need to take into account the system on which it will be installed. Also, do not purchase too cheap products from little-known companies: a water check valve for a pump, the price of which is understated, may require an early replacement. Better to pay a little more, but buy proven products.

conclusions

Cranes and gate valves for pumps and stations

Video: product overview and purpose

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See also:

How to choose submersible pumps for wells: selection criteria Water filters under the sink - which one is better? Sololift for sewage: what is it and why is it so useful? How is the water pressure regulator used in the water supply system: types and methods of installation Adjusting the water pressure switch for the pump and troubleshooting in-house Water filters for a private house: is it necessary and how to choose?