Quick-Opening Closure
Quick-Opening Closure for rapid opening and closing on pressure vessels, used to quickly open and close the end covers of pig launchers and receivers, filters, and other pressure equipment, and also applicable as a replacement for blind flange on pipelines or vessels that require frequent operation in refining, chemical, medical, papermaking, national defense, and water supply and drainage projects; typical components include a shell flange, head cover, locking mechanism, safety interlock, and sealing ring.
Application
Quick-Opening Closure for rapid opening and closing on pressure vessels, used to quickly open and close the end covers of pig launchers and receivers, filters, and other pressure equipment, and also applicable as a replacement for blind flange on pipelines or vessels that require frequent operation in refining, chemical, medical, papermaking, national defense, and water supply and drainage projects; typical components include a shell flange, head cover, locking mechanism, safety interlock, and sealing ring.
In a typical processing train the sequence is: Feed → Separation → Outlet.
Scope of supply
Capacity, design conditions and scope of supply are confirmed per project.
Design standards
Reference projects
- 2022 — 42Mpa metering and regulating skid for the Wenjisang Gas Storage project, Tuha Oilfield
- 2022 — Wen 23 Gas Storage of PipeChina West-East Gas Pipeline – TEG dehydration system - 10 million cubic meters per day
- 2024 — Caofeidian Offshore Gas Storage, Jidong Oilfield – integrated ground equipment - 30 million cubic meters per day
Project references are taken from the PetroBest 2025 group catalogue.
Frequently asked questions
What is a quick-opening closure used for?
Quick-Opening Closure for rapid opening and closing on pressure vessels, used to quickly open and close the end covers of pig launchers and receivers, filters, and other pressure equipment, and also applicable as a…
Which pressure vessel codes can be supplied?
ASME VIII Div.1 U-Stamp and GB standards — confirm scope per project.
Request a quotation
Send the design conditions, medium, flow rate and pressure range, and we will return a technical proposal and a price.