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Why choose knife gate valve when the medium is mud?
Mud is a fluid medium with high particle content and high viscosity, which has high requirements on valves. In the process of handling mud, it is necessary to choose a valve that can effectively control the flow of fluid and prevent mud leakage. The knife gate valve is a valve that can meet these requirements.
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2024.02
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Analysis of causes of gate valve leakage
Gate valve is the most common industrial valve and is widely used in industrial fields such as petroleum, petrochemicals, power stations, long-distance pipelines and shipbuilding. As a kind of fluid control equipment, the opening and closing part of the gate valve is a gate plate. Through the up and down movement of the gate plate, the open and closed states are switched, thereby realizing the function of cutting off or connecting the medium in the pipeline. If the gate valve leaks, it can easily cause hidden dangers to pipelines, equipment and facilities, and even affect the safety of personnel and equipment.
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2024.02
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You don’t even know about gate valve
The opening and closing part of the gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.
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2024.01
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Why is the triple eccentric butterfly valve so popular?
The new triple eccentric structure design realizes zero friction, more stable performance, and longer sealing service life. The delicate design ensures that the butterfly valve can be opened and closed flexibly from low to high temperatures, and the sealing performance is excellent, which is fully in line with the sealing standard of zero leakage of the valve under severe working conditions.
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2024.01
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What are the material options for butterfly valves?
Common butterfly valve materials include carbon steel, stainless steel, and ductile iron.
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2025.08
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Application of Butterfly Valves in Various Industries
Butterfly valves are widely used in the power industry, chemical and petrochemical industries, metallurgy and mining industries, municipal engineering, heating, ventilation and air conditioning systems (HVAC) and other fields.
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2025.08
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Application of Gate Valves in Different Types of Water Treatment Processes
Abstract: WEIZIDOM offers various types of water treatment gate valves, including wedge-type gate valves, parallel-type gate valves, rising-stem gate valves, non-rising-stem gate valves, and elastically sealed gate valves, depending on the client's water treatment project conditions and media.
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2025.08
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What are the main types of gate valves classified according to gate plates?
Generally, it is recommended when the usage conditions or requirements require reliable sealing performance, high pressure, high pressure cutoff (large pressure difference), low pressure cutoff (small pressure difference), low noise, cavitation and vaporization phenomena, high temperature medium, and low temperature (cryogenic). Wedge gate valve. Such as electric power industry, petroleum refining, petrochemical industry, offshore oil, water supply engineering and sewage treatment engineering in urban construction, chemical industry and other fields.
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2023.12
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What is the difference between hard seal butterfly valve and soft seal butterfly valve?
Soft sealing butterfly valve is suitable for bidirectional opening, closing and adjustment of ventilation and dust removal pipelines in water treatment, light industry, petroleum, chemical and other industries.
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2023.12
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Valve distribution and selection recommendations for urban drainage systems
Drainage valves are indispensable water industry products in urban drainage systems. Among them, the most widely used are various types of medium and low pressure valves, including various butterfly valves and gate valves. Others include ball valves, check valves, exhaust valves, plug valves, and diaphragms. Valves, pressure reducing valves, flow regulating valves, mud discharge valves, etc.
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2023.11
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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
