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"Gate Valve Application"

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Gate valve by valve stem classification:
2018-09-12
According to the gate valve stem type can be divided into pole Industrial Forged Steel Gate Valves and dark bar gate valve. The stem is the operating part of the gate valve, and its function is to transmit the opening and closing force to the opening and closing member.1, the stem gate valve stem trapezoidal thread placed outside the valve body, lo... According to the gate valve stem type can be divided into pole Industrial Forged Steel Gate Valves and dark bar gate valve. The stem is the operating part of the gate valve, and its function is to transmit the opening and closing force to the opening and closing member.1, the stem gate valve stem trapezoidal thread placed outside the valve body, located in the upper part of the stem, by rotating the stem nut, so that the valve stem to drive the gate to rise and fall simultaneously to achieve the valve opening and closing, so easy to identify the valve Open and close state, to avoid misuse. As the stem nut in the body cavity, is conducive to lubrication, while opening and closing state intuitive obvious, and thus widely used. However, in harsh environments, the exposed threads of the valve stem are susceptible to damage and corrosion, and even affect the operation. Its shortcomings is the height of the valve after opening, usually in the original height of the valve to add a trip on the basis of the need for a lot of operating space.2, dark bar gate valve, also known as rotary bar gate valve (also known as the dark wedge gate valve), stem nut placed in the valve body, and the media in direct contact, often fixed on the gate. Through the stem of the rotation so that the stem nut to drive the gate to do the lift movement to complete the opening and closing. Usually at the bottom of the stem has a trapezoidal thread, through the bottom of the valve thread and the valve on the groove, the rotary motion into a linear motion, that is, the operating torque into operating thrust. As the transmission trapezoidal thread is located inside the valve body, susceptible to corrosion and can not be lubricated, the degree of opening can not be directly observed, need to set the indicating device. But its stem does not lift movements, the required operating space is small, it is suitable for the location of limited pipe-intensive occasions. View Details
Features of fully welded ball valves:
2018-08-06
Fully welded ball valve, no external leakage and other phenomena. The ball processing process has advanced computer detector tracking detection, so the ball processing precision is high. As the fully welded ball valve body material is the same as the pipeline material, there will be no uneven stress, no deformation due to earthquakes and vehicles p... Fully welded ball valve, no external leakage and other phenomena. The ball processing process has advanced computer detector tracking detection, so the ball processing precision is high. As the fully welded ball valve body material is the same as the pipeline material, there will be no uneven stress, no deformation due to earthquakes and vehicles passing through the ground, the pipeline aging resistance. Ball processing precision is very precise, easy to operate, no interference. Fully welded ball valves are smaller in size and beautiful in appearance compared to the same products in the same industry. The service life of the valve is more than 20 years when the valve is operated and used normally. View Details
Gate valve
2018-05-17
Gate valve opening and closing parts are gate, the movement direction of the gate is perpendicular to the direction of the flow. The gate valve can only be fully open and full, which cannot be regulated and throttling. Sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with th... Gate valve opening and closing parts are gate, the movement direction of the gate is perpendicular to the direction of the flow. The gate valve can only be fully open and full, which cannot be regulated and throttling. Sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with the valve parameters, usually in the form of 50, when the medium temperature is not high for 2 ° 52 & apos; . The gate of the wedge gate can be made into a whole, called a rigid gate. It can also be used to make a small deformation of ram, to improve its process and make up for the deviation of the sealing Angle in the process of processing. This type of ram is called elastic ram. View Details
Advantages of gate valve
2018-05-02
1. Small flow resistance. The internal medium channel of the valve body is straight, the medium is straight flow and the flow resistance is small.2. It is easier to open and close. Compared with the globe valve, the movement direction of the gate is perpendicular to the flow direction of the medium, whether open or closed.3. The height is high and ... 1. Small flow resistance. The internal medium channel of the valve body is straight, the medium is straight flow and the flow resistance is small.2. It is easier to open and close. Compared with the globe valve, the movement direction of the gate is perpendicular to the flow direction of the medium, whether open or closed.3. The height is high and the opening time is long. The opening and closing of the gate is larger, and the drop is done through the screw.4. Water hammer phenomenon is not easy to produce. The reason is that the closing time is long.5. The medium can flow in any direction on both sides and easy to install. The gate valve channels are symmetric on both sides.6. The length of the structure (the distance between the two ends of the shell) is small.7. The sealing surface is easy to wear and affects the service life. When opening and closing, the gate and seat two sealing surface friction sliding, want medium pressure action to produce abrasion wear, affect sealing performance, shorten service life.Forged steel gate valve's more expensive. Contact with the cover more, the processing is more complicated, especially the sealing surface of the gate block is not easy to process, and the parts are more.Simple form, short structure length, good manufacturing process and wide application scope. View Details
GB gate valve opening and closing parts is the gate, the direction of movement of the gate and the fluid direction perpendicular to the gate valve can only be fully open and fully closed, can not be adjusted and throttling.
2017-09-15
Industrial Forged Steel Gate Valves is a wide range of the use of a valve, the general diameter DN ≥ 50mm cutting devices are used it, sometimes small diameter cutting device is also used gate valve has two sealing surface, the most commonly used model gate valve two The sealing surface is wedge-shaped, and the wedge angle varies with valve param... Industrial Forged Steel Gate Valves is a wide range of the use of a valve, the general diameter DN ≥ 50mm cutting devices are used it, sometimes small diameter cutting device is also used gate valve has two sealing surface, the most commonly used model gate valve two The sealing surface is wedge-shaped, and the wedge angle varies with valve parameters, usually 50, and 2 ° 52 'when the medium temperature is not high. Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce a trace of the deformation of the gate to improve its craft, to make up the sealing surface angle in the processing of the deviation, Plate is called elastic gate. The gate valve is the main control equipment for the flow or delivery volume of powder, crystal material, pellet material and small pieces of material. It is widely used in metallurgy, mining, building materials, grain, chemical industry and so on. View Details
Gate Valve Selection Guide
2017-09-15
The 21st century, the population continues to increase, the production requirements of various industries also increased; technology developed, led to people's requirements have improved; valve enterprises in order to meet the needs of the times, more and more types of valves, to adapt to the various Industry needs, but also shows the importanc... The 21st century, the population continues to increase, the production requirements of various industries also increased; technology developed, led to people's requirements have improved; valve enterprises in order to meet the needs of the times, more and more types of valves, to adapt to the various Industry needs, but also shows the importance of the valve. A valve of superior quality is available for a long time. The types of valves mainly include butterfly valve, ball valve, gate valve, check valve, balance valve, regulator valve, globe valve, electric two-way valve and so on. Intelligent valve in the moment is not very rare, the valve business competition and therefore more intense.  Api Forged Steel Gate Valve is the leader in the valve family with its corrosion-resistant, sealed three O, flat seat, light weight, easy to open the advantages of the advantages of the majority of buyers have been loved. The gate valve is also widely used in food, medicine, textile, electric power, water, sewage, construction, petroleum, chemical, shipbuilding, metallurgy, energy system and so on because of these superior conditions. But also according to different industrial and mining environment to choose different specifications, the corresponding structure type. Can be divided into elastic seat closure valve, dark rod-type gate valve, the gate-type gate valve, electric gate valve and so on. Then what parts of the gate valve components? Mainly by the valve body, gates, bolts, seals, bonnet, stem, "O" -shaped ring, thrust pad and so on. View Details

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