Seeking help with valve material code~~~
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The valves we use in everyday applications, such as the ball valve Q41F-16R, where the ‘R’ denotes chromium-nickel-molybdenum steel; if it is made of S31603 material, I can simply use that model designation. Now I’m dealing with S31703 and the duplex steel S22053; for valves made from these two materials, how should these material codes be written? Or there are also specific valve models available; ball valves can be used as an example. I hope someone experienced can give me some advice. Thank you~~~
In the current JB/T308 standard, the material used for valve bodies is designated by the code R, which refers to chromium-nickel-molybdenum stainless steel; it is not possible to determine the specific type of stainless steel used. To make a distinction, it would be advisable to use codes such as R1 or R2. This is merely a code, and there should also be a corresponding description of the specific valve. Currently, large design institutes generally have their own valve numbering rules, as the standard valve numbering system has too many shortcomings, making it difficult to distinguish between many specific valve details.
Generally, valve codes from larger design companies consist of more than 20 digits, providing very comprehensive information
I completely agree with you; only special specifications are needed to designate the valve body material.
Each company has its own material codes, with some having as many as 20 or more digits. The old way of describing valves should be updated.
There’s nothing I can do; I can only add a note about the materials
This post was last edited by shiwendong on 2016-12-30 at 11:59. The model designation for the digital control valve used in installations is V788B3BE53AAA: V: Basic valve code; 788: Digital control valve with solenoid-operated pilot valve; B: Revision version 1998; 3: DN80, 3”; B: ASNI 150LB; E: Valve body made of carbon steel; 5: O-ring seal; 3: Power supply of 24V; A: No check valve; A: No valve position indicator; A: No indicator switch. The model designation for the digital control valve used in installations is V788A3BP57AAA: V: Basic valve code; 788: Digital control valve with solenoid-operated pilot valve; A: Latest revision version; 3: DN80, 3”; B: ASNI 150LB; P: Valve body made of nickel-plated steel/stainless steel; 5: O-ring seal; 7: Power supply of AC220V; A: No check valve; A: No valve position indicator; A: No indicator switch
:victory: agree
The valve material can be specified on the pipeline table; additionally, it can also be noted in the pipeline data table
Is the duplex steel S22053 what we usually refer to as 2205?
Yes, you can refer to the specific material instructions