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Small Precise Inserted Type Quick Opening Closure

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Description

Quick opening closure (QOC) is used for the pressure pipeline and pressure vessel, it is a mechanical device and offers rapid opening and closing functions.Inserted type quick opening closure is composed of end closure, barrel ?flange, ?safety interlock device ?etc, ?its ?structure ?type ?refer ?to?structure schematic drawing.1.End?Closure???2.Barrel?Flange??3.End?Closure?Hinge??4.Locking?Screw?5.Strength?Stem 6.Loosening?Board????7.Pres-Relief?Screw?? 8.Cover?Loosening?ScrewA.Opening Procedure：1.Open the air release valve before open the QOC, to assure that no pressure in the vessel.2.Screw out the pres-relief screw (Part 7) of safety interlock device, take out the loosening board (Part 6).3.Loosen and return the locking screw (Part 4) counterclockwise.4.Turn the cover-loosening screw (Part 8) clockwise to make the end closure (Part 1) loose.5.Pull the end closure with the strength stem (Part 5) downward 30 degree to the stop pin.6.Pull the end closure (Part 1) out from the barrel flange(Part 2).B.Closing Procedure：1.Clean the seal surface and seal groove thoroughly and coat antirust paint.2.Make the end closure (Part 1) face the barrel flange (Part 2) and push it into the right location.3.Loosen ?and ?return ?the ?cover-loosening ?screw ?(Part ?8)4.counterclockwise.5.Pull the strength stem (Part 5) upward to make the end closure(Part1) ?rotate.6.Turn the locking screw (Part 4) clockwise to make the strength stem(Part 5) to 30 degree(till the strength stem touches the stop pin).7.Install the loosening board (Part 6) and screw on the pres-relief screw(Part 7) of the safety interlock device.C.Safety operation and maintenance1.The operator must know the QOC& acute;s structure,operating procedure and methods.2.Before open the end closure, the air relief valve of the vessel has to be opened first. Only the internal pressure down to zero could the end closure be opened.3.Install the loosening board (it is part of the safety interlock device) and press-relief screw first, then a

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