What is a butterfly valve?
- Dec 11,24
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A butterfly valve is composed of a valve body, a disc, a valve stem, and a handle. It adopts a disc type opening and closing member, the disc is fixed on the va
Anti Blowout Stem of Ball Valves
- Dec 11,24
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Fireproofing, anti-static and anti-blowout stem are three important design features of ball valves. In this article, we will discuss anti-blowout stem in detail
A Brief Introduction of Ball Valve
- Dec 11,24
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The ball valve is a valve that uses a ball with a circular through-hole as a starting and closing member, and the ball moves with the valve stem to realize the
The Anti-Static Device of Ball Valves
- Dec 11,24
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In this article, we will talk about the anti-static device of ball valve. During the process of valve operating, the friction between the soft seat and the meta
Special Requirements for Natural Gas Pipeline Valves
- Dec 11,24
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1. Quick action, automatic shutdown Generally, the managers stay in the station or central control room, the pipeline valves are required to be able to autom
A Presentation Competition Was Carried Out in DERVOS
- Dec 11,24
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On January 4th, a presentation competition was carried out in DERVOS, with the target that every salesman would be equipped with the capability to present our c
What is the difference between ERW and CDW pipes?
- Dec 11,24
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Electric resistance welded (ERW) pipes are longitudinally welded from metal after moving it afterward. CDW pipes are produced by expelling the metal to the requ
How to judge whether the valve leakage is internal or external
- Dec 11,24
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When using electric valves, various faults are often encountered. Valve leakage is a common type among many faults, and the leakage of electric valves generally
Manufacturing and inspection techniques for full welded ball valves
- Dec 11,24
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The full welded ball valve described in this article uses single spherical welding with a fully automatic welding process. The ball valve has characteristics of
Bellow Seal Valves - a solution to prevent leakage
- Dec 11,24
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Irrespective of proper selection, installation, and periodic and preventive cares on conventional valves, leakages cannot be totally eliminated. Though performa
How to select the right pneumatic solenoid valve
- Dec 11,24
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Slide gates and diverter valves that use pneumatic actuators (air cylinders) must be equipped with a properly matched pneumatic solenoid valve. The solenoid val
Valves with Heating Jackets by Dervos
- Dec 11,24
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A heating jacket is a metal enclosure installed around the body or the whole of the valve with the purpose of maintaining the temperature of the fluid flowing t