The quick opening closure is used for the pressure pipe or on the circular opening of pressure container. It is also a kind of device to achieve quickly opening or closing. The quick opening closure generally consists of flange, head cover, hook ring or clamp, sealing ring, security interlocking mechanism, opening and closing mechanism, rotary arm, short segment, and so on. Application industries: Petroleum, natural gas Types of fast opening closure: Tooth clutch type, clamp type, locking ring type, cut-in type How to open the quick opening closure: 1 Inspect the pressure inner of the cavity of the closure cylinder, and do not operate until the pressure number return to zero. 2 Inspect that whether the valves of inlet and outlet are closed without any pressure. 3 Slowly release the pressure alarm bolt, and inspect whether there is pressure in the container. 4 Take the pressure alarm bolt and its lock plate off the closure if there is no pressure. 5 Rotate the handle 180 degree anticlockwise to start the drive chain and horseshoe mechanism device, simultaneously the locking belt progressively shrank back to the gate recess.
