Which standards should be used for selecting valves, bolts, gaskets, and flanges?
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Which standards should be used for selecting valves, bolts, gaskets, and flanges?
hgt20592-20635
hgt20592-20635
hgt20592-20635
There are many types of valves, and the choice depends on the specific purpose of the valve as well as the operating environment. Industry standards for flange gaskets and bolts include HG/T20592-206635-2009, SH/T3406-2013, JB/T79-90-2015, etc. The national standard is GB/T9112-9125-2010. There are also numerous foreign standards such as ASME B16.5, ASME B16.47, DIN, ISO, JIS, BS, and many others
HG20592-2009 is mainly used in PN series pipelines；
I don’t quite understand what you’re saying. You need to first consider the intended use in order to determine what type of material and what kind of valves with specific temperature and pressure requirements are needed – whether they should be made of cast steel, cast iron, or forged steel. Depending on whether the application involves low or high temperatures, low or high pressures, there are corresponding standards available for selection. The other accessories are more or less the same
The operating conditions and the type of medium are not clear; it’s too vague to make a proper selection
It is this standard – it’s very useful. In China, bolts, gaskets, and flanges are generally chosen from here, including those in metric and imperial systems. . .
Those working on bolts, gaskets, and fasteners, please come and offer your support