What is the difference between a flanged ball valve and an ordinary ball valve?

Here are some well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

The principle of ball valves is similar, and the flanged ball valve and the ordinary wire joint ball valve both refer to the difference between him and the pipe connection part.

The rest of the principles are no different.

It is a ball valve with a flange as the connection method, and the internal structure has nothing to do with whether it is a flange or not.

Ball valves and gate valves are two different types of valves. They differ from each other in the following ways:

Ball valves and gate valves.

First, the spool structure.

The valve core of the ball valve is a ball, because of the structure of its fixed ball, the valve ball is fixed under the condition of high pressure, especially in the closed state, and the upper valve stem and the lower branch decompose part of the pressure from the medium, so the valve ball does not offset downstream, so the pressure on the downstream valve seat is smaller than the ruler, so the friction that the valve overcomes when it is moving.

If it is small, the wear of the valve seat is small, and the service life of the valve is long, especially for the valve that acts frequently, this structure is more suitable.

The spool of a gate valve is either a wedge-shaped disc or a parallel disc. Its lower part has no support for the trapped residual shaft. Therefore, when the valve is applied under high pressure and in the closed state, the valve plate bears a great pressure from the medium, and because of its flat valve plate structure, all the medium pressure acts on the valve plate at the same time, then the valve plate will be pressed to the downstream valve seat (at the same time, excessive pressure acts on the vertical plane of the valve plate, which will make the valve plate whether it is wedge-shaped or parallel double gate, there will be a certain deformation), then the valve needs to overcome great friction when it is opened, and the wear of the valve seat prints the life of this valve is short.

Second, the seat structure.

The ball valve has a spring inside the seat, and the sealing design of the seat makes it difficult for the residue in the medium to enter the seat. The valve seat is in long-term contact with the valve ball under the action of the spring, and when the valve is moving, the valve seat has a certain scraper effect of sock rolling, which can scrape off the slag attached to the valve core after long-term operation, and can ensure the sealing performance of the valve for a long time. Especially in high-temperature and high-pressure applications, the material of the seat, valve body, and valve ball is selected with the same coefficient of thermal expansion.

When the valve is closed, the huge temperature difference and the drop in temperature will not affect the action of the valve, and the valve will not produce the phenomenon of locking.

The seat of the gate valve is very narrow, and in high temperature applications, when the valve is closed, the temperature drops because the medium does not flow, so the seat will tighten, resulting in a large compression force on the valve plate. When the valve is opened again, a large torque is required to overcome this compressive force, which will cause great damage to the valve seat and affect the life of the valve seat. This affects the service life of the valve.

In addition, due to the weight of the ram itself when the valve is closed, it will bring a great impact force to the valve.

Loud noise. 3. Itinerary.

The ball valve has an angular stroke and therefore has a small installation space and low height. The stroke of the gate valve is straight, so the installation space is large and the height is high.

4. Executive Agencies.

Due to the fixed ball design, the opening and closing torque of the ball valve is small, so the actuator is correspondingly small. Gate valves have a large compression force on the valve seat due to the large compression force of the valve plate, so it takes a lot of torque to overcome this large friction force, and the actuator is equipped with a large force.

1. The working principle of one-piece ball valve and two-piece ball valve is different: the working principle of one-piece ball valve is the mechanical pressure effect of the valve stem; The working principle of the two-piece ball valve is to make the valve open or occluded by rotating the valve.

2. The valve body of one-piece ball valve and two-piece ball valve is different: the one-piece type is fixed by a plug head; The two-piece ball valve is fixed by two pieces of the valve body clamping the ball, and the maintenance is relatively complicated, and the tightness of the bolt in the middle is very critical.

3. The closing parts of one-piece ball valves and two-piece ball valves are different: the closing parts of one-piece ball valves are a ball, and the ball rotates around the center line of the collapsed skin valve body to achieve opening and closing; Two-piece ball valves, on the other hand, have no special requirements.

There is a big difference between the structure and working principle of the ball valve and the gate valve, they are not the same.

V-Ball Valve. 1.Structure: The main component of the ball valve is the ball, which controls the flow or truncation of the fluid by rotating the ball; The gate valve, on the other hand, controls the flow or truncation of the fluid by moving the gate up and down.

2.Working principle: The ball valve changes the position of the bore in the ball by rotating the ball, so as to realize the flow or truncation of the fluid.

Ball valves are usually simple to operate and can be fully opened or closed quickly. Gate valves, on the other hand, control the flow or truncation of fluids through a ram that moves up and down, are relatively slow to operate and usually require multiple operating steps to achieve full opening or full closing.

V-Ball Valve. 3.Sealing performance: Ball valves usually have better sealing performance, because the sealing surface between the ball and the valve seat can achieve better sealing effect. On the other hand, gate valves may cause wear and leakage of the sealing surface due to the up and down movement of the ram.

4.Scope of application: Ball valves are usually suitable for fluid control under high pressure, high temperature, high flow rate and other conditions, and are widely used in petroleum, chemical industry, electric power, metallurgy and other fields.

Gate valves are usually suitable for fluid control under low pressure, low temperature, low flow rate and other conditions, and are widely used in urban water supply, sewage treatment, air conditioning, fire protection and other fields.

Therefore, there are obvious differences between ball valves and gate valves in terms of structure, working principle, sealing performance and scope of application, and the appropriate valve type should be selected according to the specific application requirements and working environment.

Stainless steel ball valves and stainless steel flanged ball valves are not exactly the same.

Stainless steel ball valves and stainless steel flanged ball valves both belong to the ball valve series, but the difference is that the connection method is different.

Stainless steel ball valve is usually connected to the inlet and outlet by pipe joints or threads, which is the basic shut-off valve of a car difference, and its effect of stopping water and gas is ideal, and the size is small, light weight, easy to install, and it is widely used in the fluid control of various industrial and municipal ruler pipelines.

Stainless steel flange ball valve is a kind of ball valve with flange connection, which is provided with flange connection at the water outlet and water inlet, which can be easily and quickly connected with the pipeline, and is a valve commonly used for industrial pipeline connection, mainly used when the flow of liquid or gas in the pipeline needs to be adjusted or isolated.

Therefore, although stainless steel ball valves and stainless steel flange ball valves are both ball valve series, due to the different ways of connecting and closing the skin, the use occasions are also different, and users can choose according to the actual use needs.

There are some differences in the use of stainless steel ball valves and stainless steel flanged ball valves, they are not exactly the same.

Stainless steel ball valve is a kind of hall source fluid control equipment, and the answer beam is usually made of stainless steel material, and uses the ball as the control element to open and close the valve. When the sphere rotates perpendicular to the inner wall of the pipe, the valve closes; When the sphere is rotated 90 degrees, the valve opens. Stainless steel ball valves are widely used in chemical, petroleum, natural gas and other fields.

It has the characteristics of simple structure, reliable sealing and long service life.

On the other hand, stainless steel flanged ball valves combine the valve with flanges, and their installation requires the use of flange connections. The advantage of flanged ball valve is that it combines the advantages of ball valve and flange, and at the same time has the characteristics of easy installation, maintenance, replacement and transportation, making it better suitable for some occasions that require frequent maintenance or replacement.

To sum up, stainless steel ball valves and stainless steel flange ball valves have different characteristics and scope of application in use, and they need to be selected according to actual needs.

A ball valve is a commonly used type of valve used to control the flow of fluids (liquids or gases) in pipes. The main feature of the ball valve is that there is a ball inside the valve body (usually spherical), and the valve is controlled on and off by rotating the ball.

Ball valves are usually composed of a valve body, bonnet, ball, valve stem and sealing ring, etc. When the sphere rotates, the channels inside the valve body will be aligned with the channels of the sphere, so as to realize the flow of fluid; When the ball rotates to the closed position, the channel between the valve body and the ball is not aligned, and the valve is closed by pressing the button.

Ball valves have the advantages of fast switching, tight sealing, light and simple, and are widely used in various fluid control occasions, including petroleum, chemical, electric power, metallurgy, water treatment, pharmaceutical and other industries. Ball valves are typically able to withstand higher pressures and temperatures, and require less force to operate, making them widely used in a variety of engineering and process applications.

The main advantages of ball valves include:

Fast Switching: Ball valves can achieve fast switching operation and are suitable for occasions that require frequent opening and closing.

Tight sealing: The ball valve adopts the contact sock mountain method between the ball body and the valve seat, which has good sealing performance and can avoid fluid leakage.

Low fluid resistance: The internal channel of the ball valve is usually larger, and the resistance of the fluid through the valve is smaller, which can reduce the energy consumption of the fluid.

Wide applicability: Ball valves are suitable for a wide range of media, including liquids, gases and corrosive media.

Some of the disadvantages of ball valves include:

Larger volume: Ball valves typically require a larger volume for the same flow rate than other types of valves.

High actuation force: Ball valves often require a large actuation force to rotate the ball, especially in the case of large diameters and high differential pressures, where the operating force can be high.

Relatively low flow regulation accuracy: Ball valves may have low flow regulation accuracy in the case of small flow and low differential pressure, and are not suitable for some occasions with high flow requirements.

In addition to ball valves, there are many other types of valves, such as gate valves, butterfly valves, check valves, regulating valves, etc., each type of valve has its characteristics and scope of application, and the selection of the right valve type should be based on.

The flange is just that disc on the ball valve, and the flanged ball valve is the ball valve with the flange. The flange alone acts as a rear gasket.

The flange is the disc in the middle of the connection between the pipe and the equipment, with a hole in the middle, a bolt in the middle, and a nut at both ends to tighten it, which is used to connect the equipment or pipeline.

Flanged ball valve is the connection method of the ball valve, and the valve connection may be welded with the equipment at both ends through the sleeve pipe, or it can be connected with the equipment through the flange.

First introduce flange connection: Flange connection is a pipe connection method. For pipe or valve component connections.

The flange is the flange piece in the flange connection or the flange part integrated with the valve component;

Flanged ball valve is a ball valve with a flange installed (ball valve is a kind of valve); Generally, large-diameter valves are connected by flanges.

The opening and closing parts (balls) are driven by the valve stem and rotate around the axis of the valve stem is a ball valve. A ball valve is a type of valve.

Valve is a general term for mechanical products with movable mechanisms that are used to control the medium in the pipeline. There are many kinds of valves, commonly used are globe valves, gate valves, ball valves, butterfly valves, check valves, plug valves, pressure reducing valves, safety valves, trap valves, throttle valves, float valves, etc.

Ball valve is one of the structural forms of valves.

A valve is a pipeline attachment used to open and close pipelines, control the flow direction, regulate and control the parameters (temperature, pressure and flow rate) of the conveyed medium.

The common structural forms of valves are:

Cut-off shape: The shut-off moves along the center of the seat, like a globe valve.

Gate shape: The shut-off moves along the center of the vertical seat, like a gate valve.

Cocks and sphericals: Closures are plungers or balls that rotate around the centerline of itself, such asBall valves

spiral form; The shut-off rotates around the shaft outside the seat, like a check valve.

Disc: The disc of the shut-off that rotates around the shaft inside the valve seat, like a butterfly valve.

Spool valve shape: The shut-off slides perpendicular to the channel, like a shuttle valve.

The spherical shape in Class 3 above, i.e. the ball valve.

Ball valve is a kind of valve, the valve is divided into ball valve, plate felling, electromagnetic felling, disc felling,。。 A lot.

It is the difference in the form of connection, the connection of the flange and the fixation on the pipe need bolts, and the thread buckle does not need to be screwed directly.