Pay attention to the flow direction of medium showed on the body .Installatio of flange connecting valve is on diagram .Lock down the connecting bolt after add sealing washer.
Pay attention to the flow direction of medium showed on the body .Installatio of flange connecting valve is on diagram .Lock down the connecting bolt after add sealing washer.
安装时请注意阀体上标注（箭头）的介质流向，安装如示意图，加密封垫后均匀锁紧联接螺栓。