It stands for Deutsches Normung=German standard and usually applies to dimensional information in the metric system. Hence DN50 is for 50mm.
If it is DN 50 ( the capital ) it indicates the pipe size. Here it is 50 mm or 2 inches.
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Will the valve DN, PN, respectively, what does this mean? PN name (pressure nominal) on behalf of Nominal pressure Units are MPa MPa For example, is J41H-16C Nominal pressure 16Kgf/cm2 Per square centimeter pressure value MPa 16Kg count if the case is PN1.6MPa The representative of the internal pipe diameter DN Units are mm mm DN50 example is the 50 mm
2"
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it's DN60; d56 = DN56 and d50 = DN50
It stands for Deutsches Normung=German standard and usually applies to dimensional information in the metric system. Hence DN50 is for 50mm.
Will the valve DN, PN, respectively, what does this mean? PN name (pressure nominal) on behalf of Nominal pressure Units are MPa MPa For example, is J41H-16C Nominal pressure 16Kgf/cm2 Per square centimeter pressure value MPa 16Kg count if the case is PN1.6MPa The representative of the internal pipe diameter DN Units are mm mm DN50 example is the 50 mm