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Maintenance of Ball Valve packing
The packing is directly related to whether the Ball Valve leaks when it is switched. If the packing fails and causes leakage, the Ball Valve will also fail, especially the Ball Valve of the urea pipeline, because its temperature is relatively high, the corrosion is relatively serious, and the packing is easy to age. Strengthening maintenance can extend the life of the packing.
Use and maintenance of Ball Valve
The purpose of use and maintenance is to extend the life of the Ball Valve and ensure reliable opening and closing. The valve stem thread often rubs against the valve stem nut, and needs to be coated with yellow dry oil, molybdenum disulfide or graphite powder for lubrication. For Ball Valve that are not f
Storage and maintenance of Throttle Valve
The purpose of storage and maintenance is to prevent the Throttle Valve from being damaged or reducing its quality during storage. In fact, improper storage is one of the important reasons for the damage of Throttle Valve. The storage of Throttle Valve should be well organized. Small Throttle Valve should be plac
Precautions for selecting and replacing Throttle Valve
The selection of Universal Valve structure is determined by comprehensive consideration of factors such as the medium used, temperature, pressure before and after the valve, flow rate, physical and chemical properties of the medium, and the cleanliness of the medium. The correctness and rationality of the Throttle Valve structure selection are directly related to the performance, adjustment performance, adjustment stability, and service life.
Installation requirements for Throttle Valve
(1) For boilers with a rated evaporation capacity greater than 0.5t/h, at least two Throttle Valve shall be installed; for boilers with a rated evaporation capacity less than or equal to 0.5t/h, at least one Universal Valve shall be installed. Throttle Valve must be installed at the outlet of the split economizer and the outlet of the steam superheater.
Working principle of Throttle Valve
Under normal working conditions, the Throttle Valve is in the closed state, and the lower disc of the pilot valve is in the open state. The pipeline medium enters the air chamber above the Universal Valve through the lower disc, closing the Universal Valve. When the pipeline medium pressure is abnormal and reaches or exceeds the set setting for
Structural features of Globe Valve
The Globe Valve is a safety protection valve. Its opening and closing parts are in a normally closed state under the action of external forces. When the medium pressure in the equipment or pipeline increases and exceeds the specified value, it automatically opens and discharges the medium to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. Globe Valve are widely used in natural gas, petroleum gas and chemical pressure vessel equipment and industrial pipelines. They have the outstanding advantages of fireproof and exp
Analysis of the cause of leakage on the valve body joint surface of the Globe Valve
The Globe Valve consists of a main valve, a pilot valve, a relief valve, a joint and a conduit. It is a Universal Valve that relies on the discharge of the medium from the pilot valve to drive or control the main valve. The Globe Valve is an important accessory of the boiler, and is commonly installed on high-pressure power station boilers. Before inst
Maintenance work during Globe Valve grease injection
The professional maintenance work of Universal Valve before welding, before production and after production plays a vital role in serving the Globe Valve in production operations. Correct, orderly and effective maintenance will protect the Globe Valve, make the Globe Valve function normally and extend the service life of the Globe Valve. The maintenance work of the Globe Valve seems simple, but it is not. There are often neglected aspects in the work.
Daily maintenance of Globe Valve
1. The storage environment of the Globe Valve should be paid attention to. It should be stored in a dry and ventilated room, and both ends of the passage should be blocked. 2. The Globe Valve should be checked regularly, and the dirt on it should be cleaned, and anti-rust oil should be applied on its surface. 3. The Globe Valve after installat
Maintenance of Globe Valve during grease injection
When grease injection of Globe Valve, the problem of how much grease to inject is often ignored. After the grease gun is refueled, the operator selects the Globe Valve and the grease injection connection method, and then performs the grease injection operation. There are two situations: on the one hand, the small amount of grease injection leads to insufficient grease injection, and the sealing surface wears faster due to lack of lubricant. On the other hand, excessive grease injection causes waste. It is because the sealing capacity of different Universal Valve is not accurately calculat
How to maintain and maintain Globe Valve
Globe valves, like other mechanical products, also require maintenance. Proper maintenance work can significantly extend the service life of the Globe Valve. 1. Storage and maintenance of Universal Valve The purpose of storage and maintenance is to prevent the Globe Valve from being damaged or reducing its quality during storage. In fact,
The Globe Valve often has the problem of internal leakage. How to solve it?
The Globe Valve is an overpressure protection device. When the pressure in the equipment, container or pipeline exceeds the allowable value, the valve will automatically open and then discharge all to prevent the pressure in the equipment, container or pipeline from continuing to rise; when the pressure drops to the specified value, the valve will automatically close in time to protect the safe operation of the equipment, container or pipeline.
The working principle and importance of the Globe Valve for subway
The Globe Valve for subway is a device used to protect the safety of the pressure system. Its main function is to release the pressure to prevent the system from overloading or exploding when the pressure exceeds a certain set value. In the subway system, the Globe Valve is usually installed in key locations, such as train carriages, vehicles, track systems, etc., to ensure the safe operation of the system. The working principle is based on the pressure control principle. When the pressure inside the subway system exceeds the set value, the Globe Valve will automatically open and release
What are the advantages of Globe Valve?
The Universal Valve is a type of valve. The difference is that its closing part is a sphere, which rotates around the center line of the valve body to open and close. Globe Valve are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. In recent years, Globe Valve have been widely used. Below, the editor will share with you the advantages and opening and closing process of the Universal Valve:
Among various types of valves, Globe Valve are the most widely used
A Globe Valve is a valve whose closing part moves in the vertical direction along the axis of the channel. It is mainly used to cut off the medium on the pipeline, that is, it can be used fully open or fully closed. Generally, Universal Valve cannot be used for throttling. It can be used for high temperature and high pressure, and can be used for various different media. Universal Valve are generally not used in pipelines that transport mud and viscous fluids.
Operation and use of Globe Valve installation
1) Remove the protective covers on both sides of the flange end and flush and clean the Globe Valve when it is fully open. 2) Before installation, the whole machine should be tested according to the specified signal (electric or gas) (to prevent vibration caused by transportation from affecting the performance), and it can be installed online onl
Instructions for using Globe Valve
1. Scope This manual is applicable to Globe Valve with flange connection ends. 2. Composition It consists of an electric (or pneumatic) actuator and a Universal Valve body, which are connected by a bracket (18) and a connecting shaft (17). 3. Usage restrictions The temperature and pressure limit namepla
1. Floating pneumatic ball Universal Valve The ball of the Globe Valve is floating. Under the pressure of the medium, the ball can produce a certain displacement and press tightly on the sealing surface of the outlet to ensure the sealing of the outlet. The floating pneumatic ball Universal Valve has a simple structure and good sealing, but the load of the working medium borne by the ball is all transmitted to the outlet sealing ring. Therefore, it is necessary to consider whether the sealing ring material can withstand the working load of the ball medium. This structure is widely used in
The actual role and advantages of Gate Valve
Gate Valve are mainly used in pipelines to cut off quickly, distribute and change the flow direction of the medium. Gate Valve are a new type of valve that has been widely used in recent years. It has the following advantages: 1. The fluid resistance is small, and its resistance coefficient is equal to
Working principle of Gate Valve
Evolution: Gate Valve evolved from plug valve. It has the same 90-degree rotation action, but the difference is that the plug body is a sphere with a circular through hole or channel passing through its axis. The ratio of the spherical surface and the channel opening should be such that when the ball rotates 90 degrees, the inlet and outlet should all present a spherical surface, thereby cutting off the flow. This type of valve can be installed at any position in the pipeline.
Let's learn about the purpose of Gate Valve
Universal Valve are safety protection devices on equipment, devices and pipelines to prevent the pressure of the medium in the equipment, devices and pipelines from exceeding the specified value. When the working pressure in the equipment, devices and pipelines exceeds the specified value, the Gate Valve will close automatically and prevent the medium in the device from continuing to flow out.
Basic performance of Gate Valve
(1) Pressure regulation range: It refers to the adjustable range of the Universal Valve output pressure P2, within which the specified accuracy is required. The pressure regulation range is mainly related to the stiffness of the pressure regulating spring. (2) Pressure characteristics: It refers to the characteristics of the output pressure fluctuation
Principle and construction type of Gate Valve
The Gate Valve is a special device that automatically reduces the working pressure of the pipeline. It can reduce the higher water pressure of the pipeline before the valve to the required level of the pipeline after the valve. Universal Valve are widely used in high-rise buildings, areas with excessively high water pressure in urban water supply networks, mines and other occasions to ensure that each water point in the water supply system obtains appropriate service water pressure and flow.
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