Spectacle Blinds

Spectacle Blinds, Spades & Ring Spacers

Designed to blind pipelines, either temporarily or permanently.

Mac-Weld spectacle blinds are manufactured from a single piece of plate, providing the strength, quality and precision needed for the toughest job. Also called “spectacle flanges”, our blinds are available in a variety of configurations, blind types and bore designs.
Spades and ring spacers are similar to blinds, except they are not attached to each other. With larger flange sizes, the spade alone can weigh several hundred pounds. Separating the two removes the unneeded weight from the flange connection. Spade and ring spacers can also be an advantage if space is limited.

  • Temporarily or permanently isolate part(s) of the system
  • Spectacle blinds available in sizes up to 24” diameter depending on thickness and materials
  • Blinds are easily identified between open and closed positions
  • Maintenance free, cost effective alternative to isolation valves
  • Large selection of materials available
  • Built to ASME B16.48 standards
  • Custom designs available upon request

When you need it for a shutdown, these guys come thru.

Steve P., Petrochemical user

See factory for details