Check valve for pumping station: reviews, price

To solve the problems with water supply once and for all, there is a good way out - the construction of its own pumping station. At its core, it is a system that consists of a pump engaged in pumping water from a well or well, as well as a pipeline ensuring its delivery to water intake points.

The device of each element of the system is a rather important and responsible stage, therefore everything must be approached thoroughly, with due consideration of all possible risks. Quite significant is the moment that the pipe that is attached to the pump must be constantly filled with water so that it can be freely pumped. And for this it is required to install a check valve for the pumping station. Traditionally, it is installed in conjunction with a coarse filter. Its task is to prevent the pump from getting into it a variety of impurities that settle on the filter grid.

Features

The check valve for the pump station is designed for installation on all pipelines. Especially in the most important places. It is designed to protect the pump from undesirable reverse of the water flow, which can damage it or completely disable it. This is quite important and significant not only for large industrial premises, but also for domestic water supply systems. So, what gives a check valve for the pumping station, what are the advantages of the system in which it is used, and whether it is necessary to use it - all this will be described below.

About pumps

Most pumps are installed horizontally, but only not in cases where it is a non-return valve designed to position the device vertically. And this is ensured by the fact that this device in combination with a coarse filter and reducer is characterized by small dimensions that allow to carry out installation work even in a rather narrow space - in a well or in a well. In order to more clearly and clearly understand what exactly is the importance of this element of the shut-off valve, you need to familiarize yourself with such a concept as a hydraulic shock. This is a sharp return of the water flow, often occurring when there are damages in the pipeline.

About adaptation

If you are installing and connecting a pumping station yourself, the diagrams will help you determine how a non-return valve should be placed. Most often it is installed in the immediate vicinity of the fence point to create the necessary pressure inside the system. The presence of a screen filter is an additional aid in the purification of water. It consists of a body that is made of brass, all threaded joints must also be brass. Like all other types of modern valves, this device includes special rubber seals, and is also characterized by a spring construction. The spring is usually made of stainless steel. There is a plug-plug, which is usually made of synthetic materials or metal. Most often, one check valve is installed for the pump station, but there may be two if necessary.

Features of the installation

On the pressure line, a special valve is usually installed behind the pump. Here, too, a non-return valve is normally used to prevent the reverse flow of water. What happens when the pump stops working? For him and the engine, the reverse current is not particularly dangerous. Most often in systems with several pumps, this type of valves is used to protect the station from flooding as a result of pipe failure, and also to protect the pressure drainage from emptying.

If the diameter of the pipeline is up to 600 millimeters, the check valve has one blind cover. For larger diameters, a multi-jawed device is usually used, with several round holes with lids. When the station is buried below the ground level, check valves should be installed on the blocked water conduits beyond its limits. If there is a rupture of pipes at the station, these devices will not allow flooding the building with a stream of pressure water conduits. For the same purpose, it is usually installed to drain water into the sewage system or to the nearest ravine (in the event that an accident occurs in the station water conduits). If there is no possibility for descent, it is required to install a special pump that will pump out water, as well as a pit for it in the floor. Suitable for these purposes are vacuum water-ring devices characterized by not very high throughput.

Design Features

Check valves for heating, as well as for water supply, can have different design features. The spring-loaded design makes it easy to assemble and disassemble the device, and also replace certain elements that are out of order in it. In the non-separable version, the device is exactly the same as the demountable one, with the difference that its body is soldered together with the screen filter during the assembly process, so it can not be divided. Check valves for heating and water supply must be of high quality. They should not generally pass water back, as this does not provide the required level of safety. Typically, the device, oriented to the installation just before the pump, is not equipped with a screen filter. The direction of installation depends entirely on the direction of the arrow, which shows where the flow of water inside the pipeline should move.

Correct installation

If the check valve is not installed correctly, then you can forget about the automation of the pump station, because you constantly have to control everything yourself. If it is available, the stability and longevity of the whole complex will be guaranteed. It is important to seal all the joints of the suction pipe with the check valve well. To do this, you can use flax or FSM tape. It is important to understand that all joints are under the constant influence of water, so you need to ensure their quality, only in this case you can expect that you will serve for a long time non-return valve (brass).

Price and reviews - these are the two parameters that influence the choice. At the cost there are different options (an average of 200 to 1500 rubles.), So you can focus on the opinion of consumers. Quite often it is about brass valves that are spoken of as the most qualitative of all.