What is the nominal pressure 1.6p of a ball valve?
Nominal pressure PN is a digital indication of pressure related signs, which is a convenient round integer for reference. All pipe attachments of the same nominal diameter indicated by the same nominal pressure PN have the same connection dimension as the end connection type.
Nominal pressure: reference value relating to the pressure resistance of a piping system. For ease of use, usually the priority of the R10 series is taken. Nominal pressure refers to the pipe in the two temperature (20 degrees Celsius) when the water delivery pressure. If the water temperature is between 25 and -45 degrees, the coefficient of temperature drop should be adjusted to correct the working pressure.