When Do We Use a Butterfly Valve?
- Dec 22, 2023
- Hits: 15
A butterfly valve refers to a type of valve in which the closing element (a disc or disc) is a disc that rotates around the valve axis to achieve opening and closing. Butterfly valves are suitable...
Manufacturing, Installation & Causes of Leakages of Cryogenic Valves
- Dec 18, 2023
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In recent decades, with the development of modern science and technology, there has been an increasing demand for cryogenic valves in engineering projects. Cryogenic valves are widely used in fields...
Selecting Valves for Water Supply Pipelines
- Dec 06, 2023
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(1) When the diameter of the pipeline is less than 50mm, a shut-off valve should be used. When the diameter of the pipeline is greater than 50mm, gate valves or butterfly valves should be used. (2)...
Five Major Differences between Forged Steel Valves and Cast Steel Valves
- Dec 01, 2023
- Hits: 14
Should forged steel valves or cast steel valves be chosen under established operating conditions? In order to better assist you in selecting the right type, today DERVOS will introduce the five major...
The Difference between Concentric, Double Eccentric and Triple Eccentric Butterfly Valves
- Nov 20, 2023
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The concentric butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve, and triple eccentric butterfly valve reflect a process of increasingly labor-saving opening and closing,...
Abnormal Pressure Rise in the Middle Chamber of Gate Valves
- Nov 10, 2023
- Hits: 43
Gate valves typically have designs such as single-wedge, double-wedge, wedge-type, parallel-type, etc. Among them, wedge-type double-wedge and wedge-type resilient gate valves are the most widely used,...
Characteristics and Installation Precautions of Three-way Ball Valves
- Sep 27, 2023
- Hits: 36
Characteristics 1. The fluid resistance of a three-way ball valve is small, and its resistance coefficient is equal to that of a pipe section of the same length. 2. A three-way ball valve has simple structure,...
The Difference between Knife Gate Valves and Gate Valves
- Sep 22, 2023
- Hits: 21
Knife gate valves and gate valves are two common types of valves, which have some differences in structure and applications. Structure Knife gate valves: The key feature of a knife gate valve is its blade...
Common Problems with Triple Eccentric Metal Seated Butterfly Valves
- Sep 18, 2023
- Hits: 21
Butterfly valves, as a component used to achieve opening and closing in pipeline systems, are widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower. Among the known...
The Characteristics and Fault Causes of Pneumatic Hydraulic Ball Valves
- Sep 08, 2023
- Hits: 15
Structural Characteristics 1. No automatic shutdown under normal circumstances The pneumatic hydraulic ball valve is equipped with upper and lower pressure limits, as well as a pressure drop rate to meet...