Quick Opening Closure (QOC)

Model QOC

PTC's Closures provide both horizontal or vertical access to any pressure vessels. Compared to any other quick-opening closures they can be operated safely at remarkable speed, any size of unit can be opened or closed in less than a minute, with no special tools required.

In-house designed software technology has played a large role in the design of QOC. We design QOCs with state-of-the-art analytical software meeting primary pressure vessel code requirements.

All standard units meet ASME VIII Div.I. Requirement of other pressure vessel codes, such as ASME VIII Div.II and PD5500 can be provided.

Standard Design Features

  • Horizontal & Vertical Configurations
  • Yoke/Clamp Style
  • Bandlock Style
  • Safelock Style
  • 6” – 72” diameter
  • Designed using Finite element analysis software
  • Available in MS ratings
  • Available in standard ANSI ratings
  • Materials

  • Fabricated from ASTM A-105N or A-350-LF2 forgings and ASTM A-516-70 plate materials
  • Special alloy materials available upon request
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