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Pipeline Closures

In-Line Flow Products manufactures a rugged line of quick-opening pipeline closures available in a wide range of sizes and orientations. See how In-Line fits your application.


Figure 700 — Quick-Opening Closures

The design of the In-Linge Figure 700 Quick-Opening Closure features pressure boundary parts and fabrication that conforms to NACE MR0175 and all the latest mandatory requirements. Weld hubs are manufactured from foreged steel with chemistry restrictions to improve weldability. Features pressure warning functionality. Actuation ready.

  • Features
  • Horizontal or vertical hinge orientation
  • Intermediate angles and non-hinged available
  • SA350-LF2 Class 1 forged steel weld hubs
  • Grades F42 to F70 available to match high-yield, thin-walled pipe
  • Standard O-ring seals
  • Comes with spanner wrench or ratchet device to smoothly assist in actuating the closure head
  • Pressure alert fitting warns operator of internal pressure prior to opening
  • Specifications
  • Size: NPS2 to NPS48 (larger sizes on request)
  • Class: 150–1500 (higher class ratings on request)
  • Temperature: -50°F to +400°F (-46°C to +204°C) - limits of elastomer seal
  • ANSI B36.10
  • ASME B16.25
  • ASME B16.5 flanges installed on request
  • ASME Section VIII Division 1
  • ASME U Stamp and U-2A Partial Data Report on request
  • NACE MR0175

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