Valve end face dimensions
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Hello, teachers! What are the standard end face dimensions for domestic valves? Which teacher or forum member has information on this topic? Please share it with me. Thank you!
The end face can be either a flange, or it can have butt-welded threads, socket welds, or clamps and sleeves
This post was last edited by zergvs on 2019-11-9 08:14. What type is the end face you are referring to? First, take a look at what is stated in JB/T 308 regarding the types of valve ends.
JB, T308 are the methods for coding valve models
Does \"end face dimension\" refer to the size of the sealing surface?
Refer to HG/T20592 pipe flange standard
Hello, teacher! The end face dimensions I am asking about include the size of the sealing surface where the valve contacts the flange, as well as the bolt diameter and hole spacing.
Hello, teachers! What I said earlier wasn’t clear, and the teachers failed to understand what I wanted. The dimensions of the valve end face that I’m referring to are the size of the sealing surface where the valve comes into contact with the flange, as well as the diameter and spacing of the bolt holes. Since there are chemical industry standards, national standards, and petrochemical industry standards for flanges, what I’m asking is: what are the valve standards that specify the dimensions of the valve end faces, and what are the specific standard numbers? What is needed is the valve standard number.
The model numbering method includes the end face structure type. I asked him to find out first.
JB/T 79, GB/T 9113 (GB/T 9124.1 and GB/T 9124.2 will come into effect in December this year), HG/T 20592, HG/T 20615, and SH/T 3406 – these are all commonly used in China.