Product Description         It is a kind of Quick Opening Closure that through the disengaging or banding of hoop realizes quick open or closed.                  When welding the blind flange and the cylinder body, the current is not too much, if you overheat the          blind plate, it will out of shape.  The  person who  using  the blind flange, must know the structure and the operation procedures          of blind plate.  Before  open  the blind  flange cover, you must first open the air valve to make sure the pressure in          the pressure vessel drop to zero, then open the blind flange.  When  pressurized to the pressure  vessel, you must first installed the releasing plate, then  press-          urized and put into use.  After the  pressure vessels  are  put into use, knock  the main pressure components  and collision is           forbidden.  The transmission system of the blind plate and screw locking  device must  always apply oil to prevent         rust. Appearance must be intact and clean. On a regular basis to check the blind flange of main pressure parts (such as blind plate,tube surface)         if found it heavy corrosion or crack, must find out the reason in time,and handle the question  properly. After use, to inspection and clean the gasket and the seal groove, and paint yellow glycerin, in order         to prevent bad sealing.        Company Information   FAQ