For specialists working in industrial enterprises, it is important to know what are the differences between a valve and a gate valve.
A valve is a drive valve used for the manufacture of a pipeline, where the gate valve rotates around its own axis in a perpendicular direction. The element has two components:
- Traffic jam;
- Static body.
A valve is a valve of a drive type, where the structure moves along the flow and enters the saddle. Designed for direct opening or closing, regulation of the flow of any medium.
What are the main differences
It is customary to distinguish three types of fittings depending on the purpose:
In some classifications, a guard group is added.
Considering the main differences between a valve and a ball valve, it is worth noting that in the first mount, fluid flow adjustment is permissible. The ball valve is not capable of this task. Based on current regulations, it is strictly forbidden to control and change the flow of fluid using a ball valve by safety regulations. First of all, this is justified by the limited functions, since the traffic controller can only open or close the flow.
With the help of a valve, changes in the working pressure are also allowed due to the pressure of water in the pipelines.
This is due to design differences that determine the functions and use of elements. Considering the main elements of the fixed body of the valve, the valve mechanism «sits» on the saddle in it. Its movement is carried out in the direction of flow.
During the operation of the crane, the turns are carried out around its own axis. If additional elements are needed, plumbers use ball elements. When the ball starts to turn, the diameter in the hole automatically changes.
The valve is equipped with a bottom box. When screwing in / unscrewing the stems, the valve moves up and down.
Comparing both designs, several conclusions can be drawn:
- The valve is in the closed and open positions.
- The valve is also capable of regulating the pressure.
- To visually recognize whether it is a valve or a faucet, just pay attention to the handle. At the crane, its device is quite simple, unlike the valve (here it is presented in the form of a lamb).
Considering the main types of valves, it is recommended to consider another popular element — the valve.
There are several types of cranes, based on the body of rotation:
- conical. Visually resembles the shape of a truncated cone. The hole can be seen as a rectangular or round shape. Most often used in gas supply. Popular due to cost.
- Cylindrical. Chief controller of the heating system. Can carry out vertical movement to control the flow of fluid.
- Ball. No plumber can do without it. The hole is made in a rounded shape through which the medium passes.
Why do you need a valve, the main advantages and nuances
A type of valve where the adjustment piece moves in a perpendicular position, moving in the direction of flow. Among representatives of this category, the valve is considered more relevant.
The tool is popular in operation:
- Transport activities, where the diameter of products varies — 15-2000mm;
- In the creation of water and gas supply;
- In the field of housing and communal services;
- Oil extraction.
The prevalence of the use of valves is due to the following aspects:
- Easy to operate;
- Small size;
- Operation in various conditions is allowed;
- There is little resistance in hydraulics.
The last aspect is important in the construction of building highways. Constantly carried out in an environment characterized by high speed.
The mechanism is not without serious nuances. When choosing the necessary tools and materials, experts do not recommend using designs where the spindle is retractable. The stroke at the shutter is at least one diameter.
It is customary to distinguish two types of valves:
- Full bore.
The first is the most common. In it, the full bore diameter is equal to the value of the pipeline on which the tool is installed. To reduce the amount of torque, gate valves are used to control valve control, including reducing the wear rate of other pipeline components.
There are several principles of valve control:
- By means of an electric drive system;
- By means of a pneumatic drive system;
- Through a hydraulic system.
Considering the comparative characteristics between the valve and the valve, we can conclude that both elements have a number of similar features and differences.
It is recommended to consider in detail what is the difference between a faucet and a gate valve.
|General signs||They are used to create tightness during the movement of the flow of liquid, gas in the pipeline. Ideal for high pressure applications|
What are the differences
|The movement of the main element (partition) is carried out in all directions: to the right, to the left, up and down||The shutter acts as the main element. It can move around its own axis, as well as place the channel at a different angle with respect to the fluid flow|
|Wear is carried out intensively with constant use||Wears out less intensively even with constant use|
|Additional space needs to be calculated outside of the piping creation to accommodate part of the baffle||It is necessary to calculate additional space only for the placement of regulatory elements|
|In practice, the installation and operation of the device is most often encountered as a locking element, in the open or closed position.||As a regulator. At any time, it is enough to set the required intensity to ensure a uniform flow|
|Rarely used as a constituent element in a mixer||Acts as one of the main elements in the mixer.|
The faucet and valve are very tight. That is why plumbers use them during plumbing repairs. However, the valve is characterized by less wear and tear than that of valves. They can only be used longer if the following basic conditions are met:
- quality regular maintenance
- optimal lubrication.
Based on this table, we can conclude that the main differences between the two mechanisms can be traced in the following indicators:
- How fast do parts wear out?
- The amount of free space that will be needed outside of the piping structure.
- where it can be used.
The crane perfectly copes with the role of a regulator, and can also act as an auxiliary element in regulating the supply of water or gas at high pressure. Therefore, when creating a pipeline, often cranes are found at the end sections. Since the rotating element moves around its own axis, it does not require much space. But for regulating mechanisms, space will be required to position the valves.
A distinctive characteristic of the mechanisms is the type of the main mechanism. It is a system that moves in a perpendicular direction in a pipeline. In the crane, a special shutter acts as the main element. If it is placed parallel to the flow or at a slight angle, the intensity of the movement of the liquid or gas increases, with a perpendicular arrangement, the intensity decreases.