Blind Flange 8 Inch Class 150 Dimensions, Weight and Bolt Size

Blind Flange 8″ Class 150

Blind Flange 8″ Class 150 is used to seal the end of a piping system or close off a flange connection in Class 150 service. It is a solid flange without a center bore and is commonly applied in industrial piping, maintenance isolation points, and future line expansion connections.
This dimension data is based on ANSI / ASME B16.5.

Blind Flange 8″ Class 150 Dimensions

  • Reference Standard: ANSI / ASME B16.5
  • Nominal Pipe Size (NPS): 8″
  • DN Size: DN200
  • Flange Thickness: 26.9mm
  • Weight: 20.5kg
  • Stud Bolt Size: 3/4″ UNC (or M20) x 110 Long
  • Number of Bolts: 8
  • Hole Diameter: 7/8″ (22.225mm)

What Is a Blind Flange?

A blind flange is a blank flange used to close the end of a pipeline, vessel nozzle, or equipment connection. It provides a secure shutoff point and is often selected when future maintenance, inspection, or line extension may be required.

Common Applications

Blind Flange 8″ Class 150 is commonly used for:

  • Pipe end closure
  • Equipment isolation
  • Valve and nozzle blanking
  • Maintenance shutdown work
  • Process and utility piping systems

CAD Drawing Download

This page includes the CAD drawing file for Blind Flange 8″ Class 150, which can be used for drafting, detailing, and piping layout coordination.

Available Blind Flange Class 150 Sizes

This size is part of the Blind Flange Class 150 series. Check other sizes in the same category to find matching dimension data and CAD files for your project.

Notes

Before fabrication or installation, always confirm the latest project requirements, flange material specification, gasket type, bolt length, and applicable pressure-temperature rating.