上海能文机电设备工程有限公司

Maximum working pressure:

◎ One-piece body construction

◎ Two-stem design: thread hardened upper stem and smooth surface hardened lower stem

◎ Upper stem thread lubricant isolated from system media

◎ Safety back seating seal in fully open position

◎ Steady and durable fastening of the handle by double lock-pins

◎ Handle of different colors are available for option