Diaphragm valve installation and maintenance: 1, before installation should be carefully checked whether the operating conditions of the pipeline in line with the applicable scope of the provisions of the valve, and should clean the cavity to prevent dirt blocking or damaging seal components. 2, rubber lining laminated rubber diaphragm surface Do not brush grease, to prevent rubber swelling, affecting the valve life. 3, the installation shall not be tied to the cords on the hand wheel or valve lifting valve. 4, manual operation of the valve, not by means of auxiliary lever to prevent torque is too large and damage the drive parts or sealing parts. 5, the valve should be stored in a dry and ventilated room, non-stacking, both ends of the inventory valve must be sealed, and the opening and closing pieces should be slightly open state. This article Keywords: Diaphragm valve