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Why Does Some Valve Has Extended Stem?

Oct 11,2024

Why Does Some Valve Has Extended Stem?

In industry, the design and configuration of valves need to be optimized for the specific operating environment and process requirements. The application of extension stem has multiple considerations.

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Components of Valve Opening Torque

Sep 30,2024

Components of Valve Opening Torque

The opening torque of the valve is mainly composed of four parts: the sealing friction torque of the valve seat, the friction torque of the valve stem and packing, the friction torque of the valve stem and bearing, and the fluid action torque

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Butterfly Valve Use Precautions

Sep 26,2024

Butterfly Valve Use Precautions

Butterfly valve as a piping system used to achieve the through and flow control components have been in the petroleum, chemical, metallurgy, hydropower and many other fields have been widely used, and its installation, operation, maintenance and so on there are many precautions, this article on these precautions to do a brief introduction.

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Introduction of Bellows In Control Valves

Sep 01,2024

Introduction of Bellows In Control Valves

The choice of bellows is crucial, some bellows damage is not just replacing the bellows, may lead to the scrapping of the entire valve, and generally need to be replaced together with the valve stem, so it is essential to strengthen the maintenance and inspection of the bellows in daily work.

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Guiding Device for Wedge Gate Valves

Aug 31,2024

Guiding Device for Wedge Gate Valves

The gate valve guiding device can prevent the gate disc from rotating or being displaced a lot when opening or closing, so as to ensure that the sealing surface is aligned accordingly and the gate disc does not rub against the valve seat before it reaches the closed position, thus reducing the wear of the sealing surface.

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Large Caliber Bellow Globe Valves

Aug 27,2024

Large Caliber Bellow Globe Valves

large-diameter bellows globe valves are prone to instability during use due to the long bellows stroke, which causes friction between the inner wall of the bellows and the valve stem and affects the service life of the bellows. In addition, the flat key, which guides the stem to move axially and prevents the stem from rotating, is often easily damaged due to the increased vertical axial shear stress caused by excessive opening of the valve. According to the working conditions, a new type of large-diameter bellows globe valves is designed.

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The Common Forms of Flange Sealing Surface

Aug 24,2024

The Common Forms of Flange Sealing Surface

The common forms of flange sealing surface have plane flange、convex and concave flange、tongue and groove flange.

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Y-type Strainer Installation Methods and Instructions for Use

Aug 23,2024

Y-type Strainer Installation Methods and Instructions for Use

The correct installation method of Y-type strainer is of great significance to its normal use and maintenance. Only by strictly following the correct operation steps and precautions in the installation process can the use effect and service life of the Y-type strainer be ensured.

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