Designed to blind pipelines, either temporarily or permanently.
Vented blinds/paddles block flow on one side, while allowing pressure relief on the other side. This helps create a much safer downstream work condition.
Mac-Weld vented blinds/paddles provide an economical solution, when a valve isn’t available near your work site. Vented blinds have multiple benefits including easy access to hydro-testing, purge entry point and line pressure release.
Looking for a custom port location, our team of designers are on hand to help you manufacture the part to your specifications. Also known as a bleed, spade or slip blinds, we offer a large variety of sizes and materials to suit your project requirements.
Blocks one side of the flange, while venting the opposite side
Ring type joint, spectacle or paddle blind plates designs available
Venting can be added to both sides, creating a multiport solution
Easy access for hydro-testing.
Handles are V notched for easy identification
Available in both NPT or socket-weld ports
Large selection of materials available
Mac-Weld Orifice Plates and More Catalogue
Available in a variety of styles, sizes and materials, see our catalogue for more details.
Our machining process includes ISO and LEAN principals, our CNC machines are always updated for maximum efficiency
