Line Blanks in Isolation, Hydrotest & Custom Thicknesses

Also called paddle blinds, blind spades, flange skillets, line blinds, pancake blinds, pipe blinds, skillet blinds, isolation blinds and test blinds - Available for Sale or to Rent

Frequently found in refineries, petrochemical and cement plants, bulk loading and storage terminals, liquid petrochemical gas and natural gas gathering systems, marine facilities, steel mills, and food processing facilities, paddle blinds are used during line repairs, maintenance and turnarounds.

Our inventory of isolation and hydrotest thickness line blanks are ready to ship 24/7-365 days of the year. Consequently, because our team of professional engineers and factory staff are on-call every day of the year, we can and will ship existing inventory or manufacture new parts in order to meet your needs quicker than our competitors.

Our Pledge to You

Whether you rent or purchase, every blind we ship to you will be ground to a smooth edge finish, stamped, painted and color coded for easy identification. Likewise, our industrial blinds are available with raised face dimensions (per ASME specifications), mill or serrated finish (125 / 250 RMS typical), as well as ring type joint (RTJ), oval or octagonal, and male or female configurations. Moreover, our inventory consists of 516 - Gr70 Spec Carbon Steel material made to ASME B16.47 & B16.48/ANSI B16.5 & B16.2 standards.

Related Products

We constantly innovate new piping isolation solutions and enhance our products. So see our patented EZ Lock Blind Rack or our custom industrial blind solutions, including EZ Vent-PurgeEZ VentEZ Purge, and EZ Guillotine Blinds, and see which solutions will save you time and money!


  • Available in sizes 1/2" to 96"
  • Isolation, Hydrotest or Custom Thicknesses
  • 516 - Gr70 Carbon Steel or Any Alloy and Coating Available
  • Class 150#, 300#, 600#, 900#, 1500#, 2500#
  • Series A & API-605 Series B Specs is Available for Sizes 26" thru 60"
  • Easily Identifiable Coloring, Markings and Handles
  • Same Day Shipping / Delivery (local)


Check Out USA Industries' Patented EZ Lock® Blind Rack!

USA Industries
Line Blanks Line Sheet

USA Industries
Line Blanks Line Sheet


Frequently Asked Questions