Shut-off valves for water supply is a special device that serves to block the flow of water in a specific section of the system. It is installed starting from industrial treatment facilities and ending with an apartment.
Valve classification
This armature contains in its composition a whole set of fasteners, nodes, fixtures, parts that are used to control various flows. Among them, the following elements can be distinguished:
- valves
- gate valves;
- cranes
- shutters;
- valves.
They are installed on various pipelines, in tanks and on units. These elements are driven by a special electrical device or manually. There are several types of equipment such as valves for water supply. Types of elements are safety and mixing.
General characteristics of valves
The requirements that apply to this type of equipment must comply with the following standards:
- Production material - brass, steel, bronze, plastics, cast iron.
- Each element meets specific operating conditions.
- The throughput rate is quite high.
- Shut-off valves for water supply are designed for a certain pressure and temperature.
- A mandatory requirement is a corrosion-resistant coating, which prevents the appearance of rust.
Stop valves: purpose
This equipment has an industrial purpose. With it, you can completely block the flow of gas or liquid substances. Shutoff valves for water supply are currently quite common. It is with the help of it that it becomes possible to ensure complete tightness in the pipeline. Valve fittings are used in various fields, for example, in sewer, plumbing, and heating systems.
Locking disc (gate valve)
Any reinforcement of such an analogue contains a regulating and locking disk. Usually it has the ability to rotate around the axis and become perpendicular to the pipeline itself, which provides constipation.
Such a valve can be adjusted manually or using an electric actuator. In modern piping systems, these drives can be remotely controlled. This allows you to stop the flow in the pipeline at any time. For example, in the event of an emergency.
Disks with which shutoff valves are equipped for water supply (photo can be found in the article) are the most important elements. The only drawback of such parts is their large size. However, a slight resistance and simplicity of the valve design itself can be attributed to the positive characteristics. This element is mounted using a flange. There are several types of discs: welded (flat or butt) and collar.
The most advantageous in modern systems is considered to be ball valves, which are more suitable for use in such systems.
Stop valves
Shutoff valves for water supply consists of certain elements, one of which is a valve. Its design is designed so that it is possible to completely block the water flow in the system. The spool takes two positions: open and closed. There are valve models used to regulate water supply. They perform two functions at the same time: locking and regulating.
The advantages of this type are as follows:
- complete tightness;
- possibility of use at high temperatures and pressure in the system;
- simple repair and maintenance;
- can be installed in a corrosive, vacuum and aggressive environment;
- high level of wear resistance.
Disadvantages of shut-off valves:
- hydraulic resistance is large enough;
- in some places, the water system may become clogged;
- for pipes with a large diameter, installation is not possible.