Bellows Sealed BW Gate Valves of 1 inch & 1500lb exported by Dervos
- Apr 27,23
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We exported 7 pcs of 1 inch – 1500 LB-Gate Valves with bellows sealed last week. Bellows are Inconel 625 with min temp series of 485℃. Due to hardness of
The Design of the Welded Ball Valve (Part One)
- Apr 21,23
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Abstract: Steel pipe welded ball valves are widely used in urban heating systems, urban gas pipelines and other pipeline equipment. The pressure of the urban he
The Design of the Welded Ball Valve (Part Two)
- Apr 17,23
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1.4 Spheres The pressure of urban heating systems and urban gas pipeline systems is generally less than 2.5MPa. For low-pressure spheres, 304 hollow spheres can
Fault Positions of Pneumatic Valves
- Apr 14,23
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A pneumatic valve is one of the most used devices in various industries in recent years. It is driven by compressed air to realize the opening and closing of th
What Are Flush Bottom Valves & Slurry Angle Valves?
- Apr 12,23
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Glad to learn you're in the market of chemistry and valve industry. Dervos is a leading valve manufacturer and trader in China and a long-term partner w
Do You Make These 5 Mistakes in Choosing Valves for Steam System?
- Apr 07,23
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Steam generated by water boilers is used in a wide range of industrial applications. Unlike most other industrial fluids, steam has special characteristics th
Differences Between Cryogenic Valves and Normal Temp. Valves
- Apr 04,23
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As the name suggests, the cryogenic valve is a valve that can work in the extra-low temperature working condition. Defined by its working temperature, we rega
Several Tips For Globe Valves You Should Never Miss
- Mar 30,23
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The stem axis of the globe valve is perpendicular to the sealing surface of the valve seat. And the valve's stem has a relatively short stroke and a very
Differences Between Soft Seal & Metallic Seal of Gate Valves
- Mar 29,23
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1. In Terms of Structure The metallic seal is a metal-to-metal seal, where both the sealing ball and seat are metal. Its machining accuracy and technology is
Click For Soft Seal Gate Valves You Don't Know
- Mar 24,23
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Soft Seal Gate Valve Overview The soft seal gate valve is a common type of valve used in water supply and drainage projects, mainly for connecting and cutting o
Wafer Type Check Valve Structure & Installation Tips
- Mar 22,23
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A wafer check valve is also called a reflux valve, a back pressure valve, a one-way valve and a non-return valve. This type of valve is automatically opened a
The Development of Check Valves
- Mar 20,23
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With the development of industrial enterprise, check valves have gone through several reforms and developments to keep pace with the industrial need. Compare