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Pneumatic ball valve is a ball valve with a pneumatic actuator, the execution speed of the pneumatic actuator is relatively fast, and the fast switching speed is seconds, so it is usually called pneumatic quick shut-off ball valve. Pneumatic ball valves are usually equipped with a variety of accessories, such as solenoid valves, air source treatment triplets, limit switches, controllers, control boxes, etc., to achieve local control and remote centralized control, and the valve can be controlled in the control room, without running to the scene to manually control, which saves human resources and time and safety to a large extent. So about the selection of pneumatic ball valves, let's take a look.
The aspects that need to be paid attention to in the selection of pneumatic ball valves are:
1. The working principle of pneumatic ball valve is to rotate the valve core to make the valve unblocked or occluded. The ball valve switch is lightweight, small in size, can be made into a large caliber, reliable sealing, simple structure, easy maintenance, the sealing surface and the spherical surface are often in a closed state, not easy to be eroded by the medium, and have been widely used in various industries.
2. Pneumatic ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium.
3. Pneumatic ball valve is a relatively new type of ball valve, which has some advantages unique to its own structure, such as frictionless switch, sealing is not easy to wear, and the opening and closing torque is small. This reduces the size of the actuator. Equipped with a multi-turn electric actuator, it can realize the adjustment and strict cutting of the medium.
Pneumatic ball valve model representation method:
Additional code for ball valves: V means the valve core has a V-shaped structure, D means low temperature, B means heat preservation, P means eccentric structure, U and S and DY mostly represent top-mounted type;
Ball valve name code: Q means ball valve;
Ball valve drive code: 6 means pneumatic;
Connection code: 1 means internal thread, 4 means flange type, 6 means welding, 7 means clamp type;
Structural type code:
Floating type: 1 represents straight flow channel, 2 represents Y-type tee, 4 represents L-type tee, 5 represents T-type tee;
Fixed: 0 means hemispherical straight-through, 6 means four-way flow, 7 means straight-through flow to, 8 means L-shaped tee, 9 means Y-shaped tee;
Sealing material code: B babbitt, F fluoroelastomer, F46 fluorine lining, H stainless steel, J lining, M Monel alloy, N nylon plastic, Monel P, Y cemented carbide, W valve body direct processing;
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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.
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Ball valve model specification size table
Commonly used ball valve models:
V-type ball valve models: VQ40F, VQ640F, VQ940F, VQ641H, VQ941H, VQ70F, VQ670F, VQ970F, VQ71H, VQ671H, VQ971H.
Insulation ball valve model: BQ41F, BQ641F, BQ941F.
Stainless steel ball valve models: Q41F, Q641F, Q941F, Q41H, Q641H, Q941H.
Fluorine-lined ball valve models: Q41F46, Q641F46, Q941F46.
Cryogenic ball valve models: DQ41F, DQ41H, DQ41V.
Clamp type ball valve model: Q71F, Q671F, Q971F, Q71H, Q671H, Q971H.
High temperature ball valve models: Q41M, Q641M, Q941M, Q41PPL, Q641PPL, Q941PPL.
Fixed ball valve models: Q347F, Q647F, Q947F, Q347H, Q647H, Q947H, Q347W, Q647W, Q947W.
Turbine ball valve model: Q341F, Q341H, Q341W, Q341Y.
Welded ball valve models: Q61F, Q361F, Q61H, Q661F, Q661H, Q961F, Q961H.
Eccentric hemispherical valve models: Q340F, Q640F, Q940F, Q340H, Q640H, Q940H, Q340Y, Q640Y, Q940V.
Top-mounted ball valve models: SQ340F, SQ940F, SQ340H, SQ940H, SQ347H, SQ647H, SQ947H, DYQ340F, DYQ640F, DYQ940F.
Three-way ball valve model: Q44F, Q45F, Q44H, Q45H, Q644F, Q645F, Q644H, Q645H, Q944F, Q945F, Q944H, Q945H.
Four-way ball valve model: Q46F, Q46H, Q646F, Q646H, Q946F, Q946H.
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Commonly used ball valve models are:
Stainless steel flange ball valve: Q41F, Q641F, Q941F, Q41H, Q641H, Q941H;
Stainless steel wire mouth ball valve: Q11F;
Turbine ball valves: Q341F, Q341H, Q341W, Q341Y;
Welded ball valves: Q61F, Q361F, Q61H, Q661F, Q661H, Q961F, Q961H;
Ball Valve Specifications and Dimensions:
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<> "What are the models of ball valves?
Ball valves are divided into floating and fixed ball valves, among which the model of floating ball valve is Q41F, where Q represents the ball of the ball valve, 4 represents the meaning of flange connection, 1 represents the structural form, and F represents the material. If the type of fixed ball valve is Q47F, where 7 represents fixed and F represents material.
What details should be paid attention to when using ball valves?
1. If the ball valve is disassembled, then the upstream pipeline of the ball valve and the downstream pipeline should be relieved of pressure, so as to ensure that there is no pressure, and then it can be disassembled and decomposed to prevent an unnecessary Mayin faction from appearing. And for non-metallic components, it is also not allowed to soak in detergent for a long time.
2. In the process of installing the ball valve, it is necessary to install bolts on the flange, and then the bolts should be in a symmetrical state, and each bolt should be tightened. If it is gas, then it needs to be cleaned with this gasoline to metal, and non-metallic parts should also be cleaned with pure water.
3. When the ball valve is decomposed, it is necessary to soak the internal accessories, and also need to remove some stains on the surface.
4. Whether the ball valve is disassembled or assembled, the details of the work are paid attention to, and the surface of the parts can not be damaged, or it will affect the later use, if the components are damaged, they should also stop using and replace them with new ones in time.
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Pneumatic Ball Valve Performs Standard Pro! Hello, glad to answer for you. National Executive Standard for Pneumatic Ball Valves:
1.Design and manufacturing standards: GB1224, API600, structural length standards:
GB12221, Flange Standard: Welding Standard: Experiment, Inspection Standard:
The working principle of JB9092 and API598 pneumatic ball valves is to rotate the valve core to make the valve unblocked or blocked. The pneumatic ball valve switch is lightweight, small in size, can be made into a large caliber, reliable sealing, simple structure, easy maintenance, the sealing surface and the spherical surface are often in a closed state, not easy to be eroded by the mediator paraplasm, and have been widely used in various industries. Pneumatic ball valve and plug valve are the same type of valves, only its closing part is a sliding ball, and the ball rotates around the center line of the valve body to achieve opening and closing.
Hope mine can help you! Do you have any other questions?
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Kiss! <>
The model specifications of the ball valve are Ball valve specifications: DN100, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN Ball valve specifications: DN10, DN100, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN8, DN Ball valve with lock specifications:
DN15, DN20, DN B Ball Valve Specifications: DN15, DN20, DN Ball Valve Specifications: DN10, DN100, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN8, DN Flanged Ball Valve Specifications:
DN100, DN25, DN32, DN40, DN50, DN65, DN Inner and outer wire ball valve specifications: DN10, DN15, DN B Heavy duty ball valve specifications: DN10, DN15, DN C medium ball valve specifications:
DN15, DN20, DN25, DN32, DN40, DN Ball valve specifications: DN15, DN15, DN20, DN20, DN25, DN25, DN32, DN32, DN40, DN40, DN50.
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Manual ball valves, including handle open and turbine open ball valves, are called manual ball valves.
Closing process: 1. When closing, rotate the handwheel clockwise, the valve stem begins to descend and makes the ball leave the valve seat and start rotating.
2. Continue to rotate the handwheel, and the valve stem is affected by the guide pin embedded in the spiral groove on it, so that the valve stem and the ball rotate 90° at the same time.
3. When it is about to close, the ball has been rotated 90° without contact with the valve seat.
4. In the last few turns of the handwheel, the angular plane at the bottom of the valve stem is mechanically wedged to compress the ball, so that it is tightly pressed on the valve seat to achieve complete sealing.
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