The DB Threadlock quick opening closure consists of a threaded cover (according to international regulations) which is screwed on the hub.

The seal is guaranteed by the use of O-ring gasket.

Operator safety is guaranteed by the standard safety valve which makes impossible to open the QOC if the equipment is still pressurized.

Features STD On request Not applicable
Safety valve security system

O-ring gasket

Lock for cover in “open” position

Partial ASME “U” Stamp certification

Hydraulic test (if applicable)

Key Interlock safety system