Knowledge About Valves

  • The Difference Between Fail Open Valve And Fail Close Valve?

    The Difference Between Fail Open Valve And Fail Close Valve?

    The valve plays an important role in the flow control process. It can transport, shut off, regulate, and even mixing and diverter. However, the valve has a variety of designs, each of which has a different function. In this article, we will give you a brief introduction to fail open valves and fa...
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  • Top 5 Automated Gate Valve Manufacturers In USA

    Top 5 Automated Gate Valve Manufacturers In USA

    The advantage of automatic gate valve is that it can remotely control the opening/closing of gate valve, realize industrial automation, and help you improve production efficiency. According to the style of actuator, automatic gate valve can be divided into electric gate valve and pneumatic gate v...
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  • TOP 5 Actuator Stainless Steel Ball Valve Manufacturers In USA

    TOP 5 Actuator Stainless Steel Ball Valve Manufacturers In USA

    COVNA was founed in 2000 and have 22 years of experience in the valve industry.We believe that our experience could help you select the suitable valve and offer the reliable fluid control solution for you. We offer electric stainless steel ball valve and pneumatic stainless steel ball valve for ...
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  • How To Maintance A Boiler Safety Valve

    How To Maintance A Boiler Safety Valve

    Boiler Safety Valve is one of the most important safety accessories to ensure the safe operation of boiler. Whether it can be opened accurately and reliably is of great significance to maintain the safe operation of boiler. As a valve with important protection function, safety valve is widely use...
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  • 3 Tips For How To Maintain The Electric Actuator Valve

    3 Tips For How To Maintain The Electric Actuator Valve

    1. The electric actuator valve should be stored in the dry and ventilated room, and the two sections of the valve body should be blocked. 2. Long-term storage of electric valves should be checked regularly to remove dirt and apply anti-rust oil on the processing surface. 3. After installation, it...
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  • Working Principle Of Air Actuated Butterfly Valves

    Working Principle Of Air Actuated Butterfly Valves

    Air Actuated Butterfly Valve is composed of pneumatic actuator and butterfly valve. The basic working principle of pneumatic valve is that compressed air enters the pneumatic actuator to drive the piston, and then rotating or lifting torsion shaft drives the stem. Pneuma...
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  • How To Select A Valve For Gas Industry?

    How To Select A Valve For Gas Industry?

    If you are a valve dealer, this article can help you understand how to select valves for customers in the natural gas industry. If you are a customer from the natural gas industry, this article can help you choose a valve. Because natural gas is flammable, explosive and corrosive, the natural gas...
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  • 5 Steps To Produce A Valve

    5 Steps To Produce A Valve

    After years of development, the number of China’s valve enterprises ranked first in the world, the valve production level has also been greatly improved, valve output has increased significantly. At present, domestic valve manufacturers have been able to ISO international standards, Din Ger...
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  • 2 Steps To Understand Solenoid Valve Working Principle

    2 Steps To Understand Solenoid Valve Working Principle

    The solenoid valve has an airtight cavity with through holes in different positions. Each hole is connected to a different oil pipe. In the middle of the cavity is a piston. On both sides are two electromagnets. The coil of the magnet on which the valve body is connected will be drawn to which si...
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  • Advantages Of Wafer Butterfly Valve

    Advantages Of Wafer Butterfly Valve

    What is Butterfly Valve? The butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close or adjust the medium flow. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in ...
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  • Working Principle Of High Temperature Solenoid Valves

    Working Principle Of High Temperature Solenoid Valves

    HK10 High Temperature Solenoid Valve is a pilot direct-acting solenoid valve, its unique shape helps heat dissipation, to prevent high-temperature burn coil. And special coils to make it work in the high-temperature industry. This product is widely used in boiler, marine heavy industry, petroleum...
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  • Selection Guide Of Solenoid Valve

    Selection Guide Of Solenoid Valve

    Selection Guide Of Solenoid Valve: 1. Selection of solenoid valve according to pipeline parameters: size specification (DN) , interface mode 1.1 Determine the diameter (DN) size according to the on-site pipe internal diameter size or flow rate requirement. 1.2 interface mode, generally greater th...
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