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Different Types of Wedge Gate Valves

Dec 18, 2023

The common types of wedge gate valves include rising stem single wedge gate valves, non-rising stem single wedge gate valves, rising stem double wedge gate valves, non-rising stem double wedge...

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Problems and Measures in High Sulfur Natural Gas Field Valves (Part Two)

Dec 12, 2023

The overhaul valve maintenance work area of the high-sulfur gas field gas production center station includes three well stations and 10 valve chambers in the middle of the gas pipeline. It mainly covers...

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Problems and Measures in High Sulfur Natural Gas Field Valves (Part One)

Dec 06, 2023

In the realm of natural gas extraction, high-sulfur natural gas fields present unique challenges. The presence of sulfur compounds in these fields necessitates the use of specialized valves to ensure...

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Anti-corrosion of Valve Surfaces in the Petrochemical Industry

Nov 28, 2023

1. Overview The petrochemical industry is the pillar industry in China. Most large petrochemical companies have been built in coastal areas in recent years due to raw material transportation and product...

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Structural Features of Double Shut-off Plug Valves

Nov 20, 2023

Structural characteristics of double cut-off plug valves The double shut-off plug valve is designed for dedicated occasions with strict requirements for sealing and cutting off (Figure 1). The plug valve...

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Analysis of the Causes of Cracking of Main Steam Pipe Globe Valves

Nov 14, 2023

The main steam pipe globe valve is made from cast carbon steel, and approximately 900kg. Through macroscopic inspection and surface flaw detection, it was found that the valve body had defects such as...

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Detecting Cracks of Main Steam Pipe Globe Valves

Nov 03, 2023

In recent years, many accidents have occurred in the steam pipelines of combined thermal and power boilers and enterprise-owned power station boilers, causing great economic losses and social impacts...

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Hardening Process of Metal-seated Ball Valves

Oct 27, 2023

1. Overview Metal seated ball valves should be elected for high-viscosity fluids, mixed fluids with dust and solid particles, highly corrosive fluids and other media in thermal power plants, petrochemical...

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Lifting Plug Valves

Oct 19, 2023

Lifting plug valves have various structural forms. Lifting plug valves are divided into soft seated plug valves and hard seated plug valves according to the material of the sealing surface. The basic...

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