Knowledge About Valves

  • How To Choose Electric Butterfly Valves?

    How To Choose Electric Butterfly Valves?

    How To Choose Electric Butterfly Valves? With the rapid development of global industrial automation, the wide range of applications for electric butterfly valves, including environmental protection, light industry, metallurgy, pharmaceuticals and other industries use electric butterfly valves, es...
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  • What Is The Function Of Safety Valves?

    What Is The Function Of Safety Valves?

    All fluids, whether stationary or flowing, have pressure associated with them. Each device has an allowable pressure value that it can withstand without breaking. Typically, this safety limit is provided based on design pressure. Explosions can cause damage to the environment. It can cause loss o...
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  • What Is The Difference Between Fire Valve And Ordinary Valve?

    What Is The Difference Between Fire Valve And Ordinary Valve?

    What Is The Difference Between Fire Valve And Ordinary Valve? Fire valves are important accessories for control on industrial and construction pipelines. The fire valve is composed of three parts: the valve body, the opening and closing mechanism, and the valve cover. Commonly used fire valves in...
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  • Which Valves Are Needed In The Food Industry?

    Which Valves Are Needed In The Food Industry?

    Which Valves Are Needed In The Food Industry? Sanitary valves, as the name implies, refer to valves that meet sanitary standards (medical standards or food standards). The valve body must meet the sanitary standard of stainless steel. All parts in contact with the medium are mirror polished. The ...
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  • What Should Be Paid Attention To When Selecting Valve Sealing?

    What Should Be Paid Attention To When Selecting Valve Sealing?

    The most important part of the valve seal is the sealing seat of the valve, also called the sealing ring. It is an important part of a valve sealing pair, which is in direct contact with the medium in the pipeline. The media in the pipeline include water, gas, particulate matter, acid and alkalin...
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  • COVNA Valves For The Paper Pulp Industry

    COVNA Valves For The Paper Pulp Industry

    The pulping process is a process of preparing, cooking, washing and bleaching raw materials rich in fiber such as wood into pulp that can be made into paper. In the papermaking process, the pulp sent by the pulping department is subjected to pulping, streaming, pressing, drying, coiling and other...
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  • What Is Anti Corrosive PTFE Solenoid Valve?

    What Is Anti Corrosive PTFE Solenoid Valve?

    The anti corrosive PTFE solenoid valve is made of PTFE material by molding (or inlaying) on ​​the outer surface of the cast steel or stainless steel solenoid valve trim, using its performance in resisting strong corrosive media to make a fluorine-lined solenoid valve. The anti corrosive PTFE valv...
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  • What Are The Valve Requirements For Refineries?

    What Are The Valve Requirements For Refineries?

    The oil refining unit in petrochemical industry is for the purpose of processing crude oil, producing different varieties of gasoline, diesel, kerosene and other fuel oils, lubricating oils and chemical raw materials. The basic requirements of the oil refining plant for the valve: meet the proces...
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  • What Is COVNA Food Grade Sanitary Solenoid Valves?

    What Is COVNA Food Grade Sanitary Solenoid Valves?

    Sanitary valves are created and designed for tasks involving aseptic or clean processing and are an essential part of industrial automation in factories. Features commonly found in sanitary solenoid valves include ease of cleaning, crevice-free, and polished contact surfaces. The more commonly us...
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  • Features And Uses Of Electric Fluorine-lined Valve

    Features And Uses Of Electric Fluorine-lined Valve

    The inner cavity and sphere of the electric fluorine-lined valve are made of high-pressure injection molding process, and are lined with corrosion-resistant and aging-resistant PTFE, so they have reliable corrosion resistance and sealing performance, and can be well applied to strong corrosive me...
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  • The Difference Between Valve Hard Seal And Soft Seal

    The Difference Between Valve Hard Seal And Soft Seal

    The difference between soft sealing and hard sealing is as follows: 1. Differences in structure and mechanism Generally speaking, the hard seal of a ball valve refers to the seal between metal and metal, and the sealing sphere and valve seat are both metal. The soft seal means that the two conta...
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  • Features And Uses Of Pneumatic Fluorine-lined Valve

    Features And Uses Of Pneumatic Fluorine-lined Valve

    The pneumatic fluorine-lined valve adopts a special molding process to make the sealing surface dense and good, and the combination of PTFE packing makes the valve achieve zero leakage; it is cast as one with the valve stem, which eliminates the possibility of the valve stem punching out of the p...
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