QOC Solutions ’ manufactures quick opening closures with jaws. The recommended sizes for use of these type of quick opening closure go from DN 6’’ up to DN 72’’ with suggested rating up to ANSI 2500.

The quick opening closures with jaws is activated by screwing/unscrewing a threaded operating rod that moves the jaws allowing the release of the cover for the opening.

Product Information
QOC Nominal Size	From 6″ to 72″
QOC Design Code	ASME VIII Div. 1 App. 24 / Div. 2 / EN 13445
QOC Design Pressure Rating	Up to ANSI 2500
QOC Design Temperature (min/max)	-46°C / +350°C
Qoc Orientation	Horizontal/Vertical
Gasket Seal	O-ring/Lip seal
Design Conditions
Design Code ASME VIII Div. 1	Yes
Code stamped
Vassel Wall Thickness	Acc. to the vessel
Vessel PWHT
NACE Compliance (MR0175/ISO15156)
Principal Materials
Hub Material	Carbon steel/Stainless Steel/Duplex/Super Duplex
Door Material	Carbon steel/Stainless Steel/Duplex/Super Duplex
Clamp Material	Carbon steel/Stainless Steel/Duplex/Super Duplex
Gasket Seal	NBR/HNBR/VITON/KALREZ
Hinge/Davit Material	Carbon Steel / Stainless Steel
Pressure Warning Screw Material	Stainless Steel
Pressure Warning Screw Seal Material	HNBR
Certification
Material Certification	Acc. to EN 10204 2.2/ 3.1/3.2
Non-Destructive Testing
M.P.I. On Weld End Preparation
Dye Penetrant onWeld End Preparation
Ultrasonic Examination	Yes
Other Requirements
Inspection Requirements
ASME U/U2 – Stamp Partial
CE Marking
Finish	Rough machined
Finish Sandblasted and coated with zinc rich epoxy primer
Weld Overlay Material
Nikel plating
Final painting according to specification
Cold galvanizing
Teflon coating
Mechanical Key Interlock

*= APPLICABLE AT REQUEST

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