Spectacle Blind Flanges

Spectacle blind flanges are line-blanking components with one solid plate and one open spacer connected by a web. Rotating the assembly between the two positions gives operators a clear visual indication that a flanged pipeline is either isolated or open. They are used where positive isolation, maintenance access and operating-state visibility are required.SASA FLANGE supplies spectacle blinds to ASME B16.48 or approved project drawings, with mating dimensions coordinated to the specified flange system. Material options can include carbon steel, low-temperature steel, stainless steel, duplex, nickel alloy and other project-approved grades. Pressure-temperature suitability depends on the ordered standard, material, facing and piping design; the product name alone is not a service approval.For quotation: state the standard and edition, NPS or DN, pressure class or PN, material grade, facing or RTJ details, bore, required thickness, quantity, coating and inspection documentation. Share the mating-flange or line-class drawing when the connection is non-standard.