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What are the key points and taboos of gate valve installation?
During the installation process of gate valves, butterfly valves and other valves, the quality of the installation will directly affect the normal operation in the future, so you must pay attention to it. Installation taboo 1: Taboo: The main materials, equipment and products used in construction lack technical quality appraisal documents or product certificates that comply with current national or ministerial standards. Consequences: The quality of the project is unqualified, there are hidden dangers of accidents, it cannot be delivered on time, and must be reworked and repaired; resulting in delays in the construction period and increased investment in labor and materials. Measures: The main materials, equipment and products used in water supply, drainage and heating and sanitation projects should have technical quality appraisal documents or product certificates that comply with current standards issued by the state or the ministry; their product names, models, specifications, and national quality standards should be marked. Code number, date of manufacture, manufacturer’s name and location, factory product inspection certificate or code number. Installation taboo 2: Taboo: Failure to carry out necessary quality inspections according to regulations before valve installation. Consequences: During system operation, the valve switches are inflexible, closed tightly and water (steam) leaks...
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2023.11
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What is the difference between soft seal gate valve and hard seal gate valve?
Soft seal is the seal between metal and non-metal, and hard seal is the seal between metal and metal. Both soft seal gate valves and hard seal gate valves are made of sealing materials. The hard seal is precision machined from the valve seat material to ensure the accuracy of matching with the valve core (ball), usually stainless steel and copper. Soft seal means that the sealing material embedded on the valve seat is non-metallic material. Since the soft sealing material has a certain elasticity, the processing accuracy requirements will be lower than that of a hard seal.
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2023.11
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14 taboos in gate valve installation! But be careful!
Installing a gate valve is not an easy task. Do you know there are fourteen major taboos? What will be the consequences if these taboos are violated? How to solve it?
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2023.11
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Top 10 international valve brands
WESDOM Group specializes in pipeline fluid systems: R&D, production and sales of valves, pipe fittings, water meters, flow meters, etc. The products cover cast iron, cast steel, stainless steel, copper, plastics and other materials, which are widely used in hydropower stations, heat, buildings, Water supply and drainage, petroleum, chemical industry, electric power, medical and other fields.
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2023.10
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How to select materials for valves in chloride ion corrosion environment?
Stainless steel produces stress corrosion in a corrosive medium environment containing oxygen and chloride ions. The proportion of stress corrosion failure is as high as about 45%.
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2023.10
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Why do gate valves require an upper sealing device?
When it is opened, the packing will bear the working pressure. If there is an upper sealing structure, it can prevent the working medium pressure from acting on the sealing packing, extend the life of the sealing packing, and prevent the valve from leaking.
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2023.10
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How to choose valve sealing surface material?
The sealing surface is the most critical working surface of the valve. The quality of the sealing surface directly affects the service life of the valve. The material of the sealing surface is an important factor in ensuring the quality of the sealing surface.
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2023.10
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Classification of Valve Material
There are hundreds of valve materials, but only half of them are commonly used. We will classify the commonly used materials and clarify their scope of usage as follows so that we can have a deeper understanding of them.
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2023.09
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What is a high performance butterfly valve?
The high-performance rubber-lined butterfly valve is a compact structured rubber-lined butterfly valve, especially suitable for regulating or controlling the flow and pressure of various water, industrial water, sewage, air, HVAC, city gas, and LPG. When closed, the valve has zero leakage.
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2023.09
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Advantages and Disadvantages of Soft Seal Gate Valve
The structure is compact, the valve has good rigidity, the channel is smooth, and the flow resistance is small. The sealing surface is made of stainless steel and carbide, which has a long service life. It uses PTFE packing to ensure reliable sealing and light and flexible operation.
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2023.09
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How to choose the valve of the waterworks?
The pipelines are pressure transmission pipelines, and the most used ones are gate valves, globe valves, ball valves, butterfly valves, check valves, soft joints, etc. The coating and internal treatment of each valve must meet the requirements of drinking water sanitation permits.
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2023.09
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How to choose the valve of central air conditioning (water system) piping system?
In the entire central air-conditioning (water system) pipeline, the valve is naturally an indispensable control component. wesdom valve provides you with a complete set of central air-conditioning (water system) pipeline valve solutions.
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2023.09
