PN is the nominal pressure is MPa, said the unit in the international system of units, in the engineering unit system is kgf/cm. The nominal pressure of determine not only according to the maximum working pressure, according to the maximum operating temperature and material characteristics, rather than simply meet the nominal pressure greater than the pressure of work.
Stainless steel flange and a parameter is DN, and DN is parametric representation of stainless steel flange size.Use special stainless steel flange manufacturers share stainless steel flange structure:
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