Introduction to natural gas globe valves, how to use natural gas check valves

The gas ammonia globe valve of coke cold ammonia valve is better. Founded in 1965, it is a high-tech enterprise specializing in the research, development and manufacturing of special valves such as ammonia valves and safety valves, and is the industry's largest ammonia system, valve manufacturing enterprises and R&D bases, and is the only one in the industry with more than 20 ammonia valve engineering technology research centers and independent intellectual property rights. The company's products have always been at the leading level in the industry, in the ammonia-related industry, with excellent quality, excellent service and well-known throughout the country, in the substitution of imports and to meet domestic demand at the same time, exported to Southeast Asia, Europe and the United States and other regions. The company has five business divisions and one R&D....

A globe valve is a valve in which the shut-off (disc) moves along the centerline of the valve seat. Depending on this form of disc movement, the change in the seat port is proportional to the disc stroke. This type of valve is very suitable for regulating the flow rate because the stem opening or closing stroke is relatively short, and because it has a very reliable shut-off function, and because the change of the seat port is proportional to the stroke of the disc.

Therefore, this type of valve is ideal for use as a shut-off or regulation as well as throttling.

The most obvious advantages of globe valves are:

l) In the process of opening and closing, because the friction between the valve disc and the sealing surface of the valve body is smaller than that of the gate valve, the wear-resistant (2) opening height is generally only l 4 of the diameter of the valve seat channel, so it is much smaller than the gate valve.

3) Usually there is only one sealing surface on the valve body and disc, so the manufacturing process is relatively good and easy to maintain. However, the disadvantages of globe valves should not be overlooked. The main disadvantage is that the flow resistance coefficient is relatively large, so it causes pressure loss, especially in hydraulic installations, this pressure loss is particularly obvious.

Here are some of the 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, Su Yan, 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 natural gas check valve is on the gas meter, and it is opened by hand.

This valve is a device on the industrial pipeline, and carefully check whether the valve logo and nameplate meet the requirements when installing. Before installation, the valve must be cleaned and the defects caused by the transportation process must be removed.

Introduction to check valves.

It is mainly used for the air pole outlet where the medium is air compressed air, to prevent the medium from entering the fan against reverse flow and to play a safe pressure relief role at the same time. The safety valve is a safety device to prevent pressure equipment and vessels from bursting due to pressure rise or internal pressure exceeding the limit. Safety valve is a widely used safety device for pressure systems such as pressure vessels, boilers, and pressure pipelines.

Ensure the safe operation of the pressure system. When the pressure of the vessel exceeds the design specification, the safety valve will be automatically opened, and the over-pressure in the exhaust gas reduction device will be discharged to prevent the container or pipeline from being damaged. When the pressure in the vessel drops to the normal operating pressure, it automatically shuts down to avoid the discharge of all gas due to overpressure of the container, which can cause waste and production interruption.

The opening and closing parts of the globe valve are plug-shaped disc trapping, the protruding surface is the plane or cone of the hunger ulnar limb, and the valve disc moves in a straight line along the fluid. The movement form of the valve seat includes a lifting rod and a lifting rotating rod. The shut-off valve is only for full open and full closing, and cannot be adjusted and controlled.

The globe valve is a forced closed gate valve, so when the gate valve is closed, pressure is applied to the disc to prevent leakage from the protruding surface. The force to close the valve is greater than the force to open the valve, so the diameter of the seat should be larger, otherwise the top bend of the seat will fail.

If it is the lowest valve, it should be called: self-closing valve.

If the air pressure is not enough or the air stops, it will automatically turn off and pull it out after the incoming air is in.

If it is the valve on the gas meter, it is a solenoid valve, which is generally connected with the alarm, and the alarm detects the air leakage after the alarm, and drives the solenoid valve to close.

The main valve of natural gas for residential gas is the main valve of the household pipeline from the main line, and then the emergency shut-off valve, meter, stove front valve and so on. If it is a residential area or other place, you need to consult the gas company in charge.

Summary. The globe valve is a commonly used shut-off valve, which is mainly used to connect or cut off the medium in the pipeline, and is generally not used to regulate the flow rate. The globe valve is suitable for a wide range of pressure and temperature, but is generally used for medium and small diameter pipes.

A globe valve is a valve in which the shut-off (disc) moves along the centerline of the valve seat.

The globe valve is mainly used for shut-off in the pipeline. Globe valves have the following advantages:

1.In the process of opening and closing, the friction of the sealing surface is less than that of the gate valve, and it is wear-resistant.

2.The opening height is small.

3.There is usually only one sealing surface, and the manufacturing process is good and easy to maintain.

2, How much does the water heater valve cost for fault repair.

What is the function of the gas water heater shut-off valve.

The globe valve is a commonly used shut-off valve, which is mainly used to connect or cut off the medium in the pipeline, and is generally not used to regulate the flow rate. The globe valve is suitable for a wide range of pressure and temperature, but is generally used for medium and small diameter pipes.

A globe valve is a valve in which the shut-off (disc) moves along the centerline of the valve seat.

The globe valve is mainly used for shut-off in the pipeline. Globe valves have the following advantages:

1.In the process of opening and closing, the friction of the sealing surface is less than that of the gate valve, and it is wear-resistant.

2.The opening height is small.

3.There is usually only one sealing surface, and the manufacturing process is good and easy to maintain.

2, How much does the water heater valve cost for fault repair.

1. The ball valve used in the pipeline is a fixed ball, and the globe valve is a valve sleeve type.

2. Ball valve, defined in the standard GB T21465-2008 "Valve Terminology", is: the opening and closing parts (balls) are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control, among which the hard-sealed V-shaped ball valve has a strong shear force between its V-shaped ball core and the metal seat of the hardfacing cemented carbide, especially suitable for media containing fibers and tiny solid particles.

The multi-way ball valve can not only flexibly control the merging, diversion, and flow direction switching of the medium on the pipeline, but also close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into the following according to the driving mode:

Pneumatic ball valves, electric ball valves, manual ball valves.

3. The globe valve, also known as the shut-off valve, is a forced sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the valve disc, the resistance that needs to be overcome by the operating force is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium, and the force of closing the valve is greater than the force of opening the valve, so the diameter of the valve stem should be larger, otherwise the failure of the top bend of the valve stem will occur.

Distinguish. 1. Different materials (because natural gas contains a certain amount of hydrogen sulfide, corrosion-resistant sulfur-resistant materials should be selected).

2. The leakage requirements are more stringent (natural gas is a flammable and explosive gas, and if the leakage is not up to standard, there will be unpredictable problems).

3. Longer service life. (Its application is not comparable to the general factory, and it is impossible to stop the operation at the end of the year, so the service life of the main line valve is required to be at least 30 years.) ）

Whopus is professional, but I guess you're asking about civilians.

The ball valves used in the pipeline are fixed balls, and the globe valves are valve sleeve types.

By regulating or cutting off the flow or pressure of the piping system, the process parameters of the piping process system are controlled or the entire system is cut off to obtain the desired product performance of the process media.