Knowledge About Valves

  • 10 Points About Principle And Attention Of Valve Pressure Test

    10 Points About Principle And Attention Of Valve Pressure Test

    Valve production is a more complex process, before the valve factory, through a series of pressure test, to ensure that each valve factory are in line with the standard. But do you know how the customer tests the valve after it arrives at the customer’s site, before the valve is installed a...
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  • 8 Points Of Knowledge About Valves

    8 Points Of Knowledge About Valves

    At present, valves are widely used in various industries and play an important role in achieving the goal of industrial automation. Each valve has its own characteristics and technical parameters. Below we will share 8 points knowledge about valves to you. 1. What is the flow coefficient C, CV, K...
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  • Modular Intelligent Electric Actuator Valve Controller

    Modular Intelligent Electric Actuator Valve Controller

    DSM modular intelligent electric actuator valve controller, using advanced microprocessor technology, high integrated IC chip and long life power output device, receive from the upper instrument DC4~20mA regulating signal and lower electric actuator DC4~20mA valve position feedback signal (or pot...
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  • Selection Of Valves For HVAC Ventilation Ducts

    Selection Of Valves For HVAC Ventilation Ducts

    Selection And Design Of Valves For HVAC Pipelines: 1. Chilled water unit, cooling water inlet and outlet design butterfly valve. 2. Before the water pump butterfly valve, filter, water pump back check valve, butterfly valve. 3. Differential pressure bypass valve between water collector and wat...
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  • Application Of Intelligent Valve In Petrochemical Field

    Application Of Intelligent Valve In Petrochemical Field

    As the main part of the control valve, the diagnosis technology of the intelligent valve positioner is constantly developing and improving. The diagnosis technology of the intelligent valve positioner plays a more and more important role in the petrochemical production process. 1. The Advantages ...
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  • 8 Points About Installing The Pneumatic Actuator Valve

    8 Points About Installing The Pneumatic Actuator Valve

    1. Pneumatic Actuator Valve Should Be Noted In The Process Of Transportation 1.1 Pneumatic actuator valve should be installed on both sides of the light plug plate fixed seal. 1.2 Pneumatic actuator valves of medium and small caliber should be tied with Straw rope and transported in containers. 1...
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  • Features Of 3 Way Motorized Actuator Ball Valve

    Features Of 3 Way Motorized Actuator Ball Valve

    The 3 Way Motorized Ball Valve adopts on off type angle stroke electric actuator or regulating type angle stroke electric actuator, which is powered by AC220V, AC380V or DC24V power supply voltage, and accepts current or voltage signals (4-20mA, or 1-5VDC) from industrial automatic instrument con...
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  • Selection Basic Of Valve

    Selection Basic Of Valve

    1. Selection Principles Of valves For Use In Water Supply Pipelines 1) When the diameter of the pipe is not more than 50mm, ball valve should be used, while when the diameter of the pipe is more than 50mm, gate valve and butterfly valve should be used 2) When flow and water pressure need to be re...
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  • 4 Protective Measures For Valve

    4 Protective Measures For Valve

    When installing valves, various precautions are taken for the engineering system and the type of valve to ensure safety. The following protective measures are recommended for check valve, safety valve, pressure regulator valve, and steam trap installation to ensure proper valve operation. 1. Chec...
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  • What Is Globe Valve?

    What Is Globe Valve?

    As a globe valve manufacturer in China, COVNA manufactures globe valves in manually operated, electrically operated and pneumatically operated types to meet your project requirements. Consult us to get a free globe valve solution with the best price! sales@covnavalve.com The globe valve is a valv...
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  • The Requirements For Installing The Electric Actuator Valve

    The Requirements For Installing The Electric Actuator Valve

    Electric Actuator Valve action distance is larger than ordinary valve, electric valve switch action speed can be adjusted, simple structure, easy to maintain, in the course of action because of the buffer characteristics of the gas itself, not easy to be stuck and damaged, and its control system ...
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  • 6 Kinds Of Valves Commonly Used In Long Distance Pipeline

    6 Kinds Of Valves Commonly Used In Long Distance Pipeline

    As a valve manufacturer, COVNA manufactures all kinds of valves for pipelines. Such as gate valve, globe valve, ball valve, butterfly valve, check valve and so on. Available in electrically operated, pneumatically operated and manually operated for your options. Consult us to get a free valve sol...
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