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Spectacle Blind Flanges

Spectacle Blind Flanges

Steelvron is a leading Spectacle Blind Flanges supplier, manufacturer, and exporter, offering top-quality flanges designed to isolate flow in pipelines and ensure safe maintenance operations. Spectacle Blind Flanges, also known as figure-8 or blind-spade flanges, are uniquely designed with one solid disc and one open ring, allowing easy switching between open and closed positions in the pipeline. This design ensures safe operation by providing reliable isolation without dismantling the system.

Overview

Steelvron is a leading Spectacle Blind Flanges supplier, manufacturer, and exporter, offering top-quality flanges designed to isolate flow in pipelines and ensure safe maintenance operations. Spectacle Blind Flanges, also known as figure-8 or blind-spade flanges, are uniquely designed with one solid disc and one open ring, allowing easy switching between open and closed positions in the pipeline. This design ensures safe operation by providing reliable isolation without dismantling the system.

As a global Spectacle Blind Flanges supplier, Steelvron offers flanges in a wide range of materials, including Stainless Steel, Carbon Steel, Alloy Steel, Duplex & Super Duplex, Nickel Alloys, Copper-Nickel, Inconel, Hastelloy, Monel, and Titanium. Our Spectacle Blind Flanges are manufactured to comply with ASME, ASTM, DIN, EN, and JIS standards, available in sizes ranging from ½” to 48” with pressure ratings up to Class 2500. They ensure reliable flow isolation, minimal leakage risk, and enhanced operational safety for critical industrial systems.

Industries such as oil & gas, chemical processing, food & beverage, water treatment, and marine engineering rely on Steelvron Spectacle Blind Flanges for superior safety, corrosion resistance, and operational reliability. Whether used for routine maintenance or emergency isolation, these flanges deliver unmatched durability, performance, and compliance with international safety standards.

 

Technical Specifications Spectacle Blind Flanges

Material

Grades Available

Standards

Size Range

Pressure Class

Stainless Steel Spectacle Blind Flanges

SS 304/304L, 316/316L, 321, 347, 904L

ASME B16.5, DIN, EN, JIS

½” – 48”

150#, 300#, 600#, 900#, 1500#, 2500#

Carbon Steel Spectacle Blind Flanges

ASTM A105, A350 LF2, A694 F42–F70

ASME, ANSI, DIN

½” – 48”

150# – 2500#

Alloy Steel Spectacle Blind Flanges

ASTM A182 F1, F5, F9, F11, F22, F91, F92

ASME, ASTM

½” – 48”

150# – 2500#

Duplex & Super Duplex Spectacle Blind Flanges

UNS S31803, S32205, S32750, S32760

ASME, DIN, EN

½” – 48”

150# – 2500#

Nickel Alloy Spectacle Blind Flanges

Nickel 200, 201

ASTM, ASME

½” – 48”

150# – 2500#

Copper-Nickel Spectacle Blind Flanges

Cu-Ni 70/30, Cu-Ni 90/10

ASTM, DIN

½” – 48”

150# – 2500#

Inconel Spectacle Blind Flanges

Inconel 600, 601, 625, 718

ASTM, ASME, DIN

½” – 48”

150# – 2500#

Hastelloy Spectacle Blind Flanges

Hastelloy C22, C276

ASTM, EN, ASME

½” – 48”

150# – 2500#

Monel Spectacle Blind Flanges

Monel 400, K500

ASTM, ASME

½” – 48”

150# – 2500#

Titanium Spectacle Blind Flanges

Titanium Gr.1, Gr.2, Gr.5, Gr.7

ASTM, ASME

½” – 48”

150# – 2500#

Materials We Offer

Other Types Of Flanges We Offer

FAQ

Your complete guide to understanding Steelvron’s products, materials, certifications, and industrial applications worldwide

What are Spectacle Blind Flanges used for?
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They are used to safely isolate sections of a pipeline for maintenance, cleaning, or inspection without dismantling the entire system.

How are Spectacle Blind Flanges different from other flanges?
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They feature a unique figure-8 design with one open and one solid disc, allowing easy switching between open and closed positions.

Are Spectacle Blind Flanges cost-effective?
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Yes, they reduce operational downtime and maintenance costs by providing quick and safe pipeline isolation.

Can Spectacle Blind Flanges be customized?
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Yes, Steelvron offers customization for material, size, pressure class, facing types, and coatings.

Why choose Steelvron as your Spectacle Blind Flanges supplier?
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Steelvron delivers globally, adheres to international standards, and offers high-quality, durable flanges suited for demanding industrial applications

Flanges Flanges

Why Choose Us?

Global Expertise

Global Expertise

Trusted manufacturer, supplier, and exporter of Spectacle Blind Flanges worldwide.

Complete Range

Complete Range

Comprehensive portfolio covering all Spectacle Blind Flanges materials and types, ensuring broad compatibility.

Certified Quality

Certified Quality

ISO-certified facilities ensure strict manufacturing and testing, delivering precision products consistently.

International Standards

International Standards

Products meet ASME, ANSI, DIN, EN, BS, and JIS norms, ensuring acceptance.

Custom Solutions

Custom Solutions

Supplying standard and tailor-made Spectacle Blind Flanges, crafted to match exact specifications.

Worldwide Reach

Worldwide Reach

Exporting to 50+ countries with a proven record of client satisfaction.