It should be in full close state when long stored .Add lubrication to the transmission part and the deveice should be dampproof and dustproof.
It should be in full close state when long stored .Add lubrication to the transmission part and the deveice should be dampproof and dustproof.
阀门长期存放时应使设备处于关闭状态，各传动部位加润滑油。传动装置作防潮、防尘处理。