What Does Pn And Dn Mean In The Valve Model?
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What PN and DN stand for in the Lined Valve model
PN stands for nominal pressure
The unit is MPa megapascal
For example, the nominal pressure of Z41H-16C is 16Kgf/cm2
That is, the pressure value per square centimeter is 16Kg. If calculated in megapascal, it is PN1.6MPa
DN stands for the internal diameter of the pipe
The unit is mm
For example, DN50 is 50 mm
The valve is expressed in inches to indicate the internal diameter of the pipe
1 inch = 2.54 cm
DN15——1/2〃
DN20——3/4〃
DN25——1〃
DN32——1 1/4〃
DN40——1 1/2〃
DN50——2〃
DN65——2 1/2〃
DN80——3〃
