Requirements of API 6D and API 608 Concerning Ball Valves (Part Two)
- Nov 29, 2021
- Hits: 569
In addition to the functions of draining and venting of the API 6D ball valve, it should also have a central cavity overpressure relief function. The DIB-2 valve seat can be used to release the overpressure...
Requirements of API 6D and API 608 Concerning Ball Valves (Part One)
- Nov 15, 2021
- Hits: 681
Combine engineering practice experience and clarify the difference and connection between API 6D pipeline ball valves and API 608 ball valves in terms of structural design, performance requirements and test...
Technical Requirements for Purchasing Valves
- Oct 26, 2021
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Specifications and categories of valves 1. The valve's model should be marked based on requirements of the national standard. If it is a corporate standard, the relevant description...
New Trends in Chemical Valves
- Oct 10, 2021
- Hits: 21
What are the new trends in chemical valves? "Peaking and neutrality of carbon" is a profound transformation of a socio-economic system. With the dual carbon goal, the domestic...
How Is A Valve Manufactured?
- Sep 25, 2021
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You may think that a valve has a few parts, simple structure and average accuracy. However, high requirements are put forward for the core sealing parts of a valve. Moreover, a valve has complicated manufacturing...
Optimal Design of Sealing Pairs of Wedge Gate Valves with Large Diameters (Part Two)
- Sep 13, 2021
- Hits: 22
3.2.2 The size of the wedge The wedge is made from WCB, which is the same as the valve body and is integrally casted (Figure 4). Calculate the thickness tB of the wedge, and get the...
Optimal Design of Sealing Pairs of Wedge Gate Valves with Large Diameters (Part One)
- Aug 27, 2021
- Hits: 44
The structure and working characteristics of sealing pairs of wedge gate valves with large diameters are discussed in this article. Structure of sealing pairs of wedge electric gate valves...
Self-sealing Blind Plates for Hydraulic Tests of Ultra-high Pressure Valves
- Aug 13, 2021
- Hits: 44
The working principle, structure, characteristics and applications of a self-sealing blind plate used in the process device of the ultra-high pressure valve hydraulic test bench are introduced...
Structural Characteristics and Applications of Metal Seated Triple Eccentric Ball Valves
- Jul 29, 2021
- Hits: 18
A metal seated triple eccentric ball valve is a new product, which is used in high-temperature, high-pressure and process media with more demanding conditions. 1. Structure of three kinds...
The Working Principle of the Safety Valve (Part Two)
- Jul 13, 2021
- Hits: 33
After the overpressure phase, the maximum relief pressure B is reached; return to the re-seat pressure C after the opening and closing pressure difference phase. The safety valve with liquid...