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Products News

  • Butterfly valve installation, use and maintenance instructions—TWS Valve

    1. Before installation, it is necessary to carefully check whether the logo and certificate of the butterfly valve meet the requirements of use, and should be cleaned after verification. 2. The butterfly valve can be installed at any position on the equipment pipeline, but if there is a transmiss...
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  • Selection method of globe valve—TWS Valve

    Globe valves are widely used and have many types. The main types are bellows globe valves, flange globe valves, internal thread globe valves, stainless steel globe valves, DC globe valves, needle globe valves, Y-shaped globe valves, angle globe valves, etc. type globe valve, heat preservation glo...
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  • Common faults and preventive measures of butterfly valves and gate valves

    The valve continuously maintains and completes the given functional requirements within a certain working time, and the performance of maintaining the given parameter value within the specified range is called failure-free. When the performance of the valve is damaged, it will be A malfunction wi...
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  • Can globe valves and gate valves be mixed?

    Globe valves, gate valves, butterfly valves, check valves and ball valves are all indispensable control components in various piping systems today. Every valve is different in appearance, structure and even functional use. However, the globe valve and the gate valve have some similarities in appe...
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  • Where the check valve is suitable.

    Where the check valve is suitable.

    The purpose of using a check valve is to prevent the reverse flow of the medium, and a check valve is generally installed at the outlet of the pump. In addition, a check valve should also be installed at the outlet of the compressor. In short, in order to prevent the reverse flow of the medium, a...
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  • Precautions for operating the valve.

    Precautions for operating the valve.

    The process of operating the valve is also the process of inspecting and handling the valve. However, the following matters should be paid attention to when operating the valve. ①High temperature valve. When the temperature rises above 200°C, the bolts are heated and elongated, which is easy to m...
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  • The relationship between the specifications of DN, Φ and inch.

    The relationship between the specifications of DN, Φ and inch.

    What is “inch”: Inch (“) is a common specification unit for the American system, such as steel pipes, valves, flanges, elbows, pumps, tees, etc., such as the specification is 10″. Inches (inch, abbreviated as in.) means thumb in Dutch, and one inch is the length of a thumb...
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  • Pressure test method for industrial valves.

    Pressure test method for industrial valves.

        Before the valve is installed, the valve strength test and valve sealing test should be performed on the valve hydraulic test bench. 20% of low-pressure valves should be inspected randomly, and 100% should be inspected if they are unqualified; 100% of medium and high-pressure valves shou...
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  • How to Select Valve Body for Rubber Seated Butterfly Valve

    How to Select Valve Body for Rubber Seated Butterfly Valve

    You’ll find the valve body between the pipe flanges as it holds the valve components in place. The valve body material is metal and made from either carbon steel, stainless steel, titanium alloy, nickel alloy, or aluminum bronze. All but carbon stell are appropriate for corrosive environments. Th...
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  • General Service Vs High-Performance Butterfly Valves: What’s the Difference?

    General Service Butterfly Valves This type of butterfly valve is the all-around standard for general processing applications. You can use them for applications involving air, steam, water and other chemically inactive fluids or gases. General service butterfly valves open and close with a 10-posi...
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  • Comparison of gate valve and butterfly valve

    Comparison of gate valve and butterfly valve

    Gate Valve Advantages 1.They can provide an unobstructed flow in the fully open position so pressure loss is minimal. 2.They are bi-directional and allow uniform linear flows. 3.No residues are left in the pipes. 4.Gate valves can withstand higher pressures compared to butterfly valves 5.It preve...
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  • How to Install a Butterfly Valves.

    How to Install a Butterfly Valves.

    Clean the pipeline of all contaminants. Determine the direction of the fluid, torque as flow into the disc may generate higher torque than flow into the shaft side of the disc Position disk in the closed position during installation to prevent damage of disc sealing edge If possible, at all time...
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