nominal pressure

The same nominal pressure PN of the same value of the mark DN!

同一公称压力PN值所标示的同一公称通径!

Nominal pressure solenoid valve should be more than the maximum working pressure tube.

电磁阀公称压力应超过管内最高工作压力.

J41N Type PN40 steel globe valves: manual, flanged, straight-through, the valve seat sealing surface material as nylon plastic, nominal pressure PN40, carbon steel valve body material cut-off valve.

J41N型PN40钢制截止阀：手动、法兰连接、直通式、阀座密封面材料为尼龙塑料、公称压力PN40、阀体材料为碳素钢的截止阀。

According to the test pressure and nominal pressure of pipes, calculated and compared their numerical value.

结合管材测试压力和公称压力, 计算并比较了它们之间的数值.