Products News
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The introduction of the main accessories of the regulating valve
The introduction of the main accessories of the regulating valve Tianjin Tanggu Water-Seal Valve Co., Ltd (TWS Valve Co., Ltd) Tianjin，CHINA 22th，July，2023 Web: www.tws-valve.com Valve positioner is a primary accessory for pneumatic actuators. It is used in conjunction with pneumatic actuat...Read more -
Valve painting identifies the limitations of valves
Valve painting identifies the limitations of valves Tianjin Tanggu Water-Seal Valve Co., Ltd (TWS Valve Co., Ltd) Tianjin，CHINA 3rd，July，2023 Web: www.tws-valve.com Painting to identify valves is a simple and convenient method. China’s valve industry began to promote the use of ...Read more -
Knowledge on Flange Static Balancing Valve
Knowledge on Flange Static Balancing Valve Tianjin Tanggu Water-Seal Valve Co., Ltd Tianjin，CHINA 26th，June，2023 Web:www.water-sealvalve.com To ensure static hydraulic balance across whole water system, Flanged Static balancing valve is mainly used for precise flow regulating of water pipeline...Read more -
The basic principle of valve sealing surface grinding
Grinding is a commonly used finishing method for the sealing surface of valves in the manufacturing process. Grinding can make the valve sealing surface obtain high dimensional accuracy, geometric shape roughness and surface roughness, but it cannot improve the mutual position accuracy between th...Read more -
What is valve cavitation? How to eliminate it?
What is valve cavitation? How to eliminate it? Tianjin Tanggu Water-Seal Valve Co., Ltd Tianjin，CHINA 19th，June，2023 Just as sound can have a negative effect on the human body, certain frequencies can play havoc on industrial equipment when the control valve is properly selected, there is an i...Read more -
Classification and working principle of valve limit switch
Classification and working principle of valve limit switch June 12th, 2023 TWS Valve from Tianjin, China Key Words: Mechanical limit switch; Proximity limit switch 1. Mechanical limit switch Usually, this type of switch is used to limit the position or stroke of the mechanical movement, so that t...Read more -
Advantages and Disadvantages of Various Valves
Gate Valve: A gate valve is a valve that uses a gate (gate plate) to move vertically along the axis of the passage. It is primarily used in pipelines for isolating the medium, i.e., fully open or fully closed. Generally, gate valves are not suitable for flow regulation. They can be used for both ...Read more -
Information on Check Valve
When it comes to fluid pipeline systems, check valves are essential components. They are designed to control the direction of fluid flow in the pipeline and prevent backflow or back-siphonage. This article will introduce the basic principles, types, and applications of check valves. The basic pri...Read more -
Six Reasons On Damage To The Sealing Surface of Valve
Due to the sealing element’s function of interrupting and connecting,regulating and distributing, separating and mixing media in the valvpassage, the sealing surface is often subject to corrosion, erosion, and wear by the media, which makes it highly susceptible to damage. Key Words：the se...Read more -
Casting Technology of Large Butterfly Valve
1. Structural analysis (1) This butterfly valve has a circular cake-shaped structure, the inner cavity is connected and supported by 8 reinforcing ribs, the top Φ620 hole communicates with the inner cavity, and the rest of the valve is closed, the sand core is difficult to fix and easy to deform....Read more -
16 Principles In Valve Pressure Testing
Manufactured valves must undergo various performance tests, the most important of which is pressure testing. Pressure test is to test whether the pressure value that the valve can withstand meets the requirements of production regulations. In TWS, the soft seated butterfly valve, it must be carri...Read more -
Where check valves are applicable
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 is installed at the outlet of the compressor. In short, in order to prevent the reverse flow of the medium, check valves ...Read more
