Full Size Orifice - All Series N388 valves have a full-size orifice to assure pipe size capacity. Water passages are streamline to provide high water flow with minimal pressure loss.

• 全通径喷嘴-所有系列N388阀门都有一个全通径喷嘴以确保管道口径的通过能力。水流道为流线型，在压降最小前提下实现高流量。