Spectacle Blinds, Spades & Spacers – Pipeline Isolation Components

Product Overview

Spectacle Blinds, Spades, and Spacers supplied by Anchor Building Materials Trading LLC are engineered for safe and dependable pipeline isolation in critical process systems. Designed to meet ANSI, ASME, API, and DIN standards, these components provide a secure method for blocking or allowing flow during maintenance, inspection, or system modification. Their robust construction, precision machining, and corrosion‑resistant materials make them suitable for demanding environments across oil & gas, petrochemical plants, refineries, power stations, water treatment facilities, and industrial processing units.
Spectacle Blinds consist of a connected pair of a Spade (paddle blind) and a Spacer (paddle spacer), allowing operators to switch between open and closed positions by rotating the assembly. Spades and Spacers are also available as individual components for systems requiring frequent isolation or where weight and space considerations apply.

Key Features

• Heavy‑duty construction for high‑pressure and high‑temperature service
• Available as Spectacle Blinds, individual Spades, or individual Spacers
• Designed to meet ANSI/ASME B16.48, API, and DIN standards
• Easy visual identification of open/closed position
• Corrosion‑resistant materials for harsh industrial environments
• Precision‑machined sealing surfaces for leak‑free performance
• Suitable for raised face (RF), flat face (FF), and ring‑type joint (RTJ) flanges
• Long service life with minimal maintenance requirements

Sizes Available

• ½” to 60″ (DN15 to DN1500)
• Custom sizes and thicknesses available for special pressure classes

Applications

• Oil & gas pipelines and process units
• Petrochemical and refinery operations
• Power generation and steam systems
• Water treatment and desalination plants
• Chemical processing and industrial manufacturing
• Shutdown, maintenance, and isolation procedures
• Positive line isolation for safety compliance

Material of Construction

• Carbon Steel (A516 Gr. 70, A105)
• Stainless Steel (304, 316, 316L, 321)
• Alloy Steel (F11, F22, F5, F9)
• Duplex & Super Duplex Stainless Steel
• Nickel Alloys (Inconel, Monel, Hastelloy)
• Coatings: Anti‑corrosion epoxy, galvanizing, or customer‑specified finishes

Benefits for Industrial Projects

Spectacle Blinds, Spades, and Spacers enhance operational safety by providing a clear, physical method of isolating pipelines during maintenance. Their durable construction ensures long‑term reliability even in corrosive or high‑temperature environments. With compatibility across major flange standards and pressure classes, they integrate seamlessly into new installations or existing systems, supporting safe shutdowns, efficient maintenance, and compliance with international safety standards.