10 Piece (MOQ)
| Business Type | Manufacturer, Exporter, Retailer, Trader |
| Size | 20-30 Inch |
| Dimension | ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings |
| Material | Stainless Steel |
| Click to view more | |
Product Details
Usage
Fittings Use
Product Name
Slip On Flanges, SO Flange, SORF Flange, SOFF Flange
Size Range
1/2 inch (15 NB) to 48 inch (1200NB)
Class/Pressure Rating
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Coating
Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanised
Applications/Usage
Offshore, Oil Field, Shipbuilding, Water System, Natural Gas, Pipe Projects, Electric Power, etc.
High-Performance Spectacle Blind Flanges
In industrial piping, ensuring absolute isolation during maintenance isn't just about operational efficiency—it is a matter of safety. When you need a permanent, foolproof barrier to completely shut off a pipe section, choosing a trusted Spectacle Blind Flange Manufacturer makes all the difference. At Rising Star Steel Industries Private Limited (RSSIPL), we engineer high-performance pressure-containment solutions that give your plant operators total peace of mind.
What is a Spectacle Blind Flange?
A spectacle blind is a safety device split into two distinct steel discs: one solid web to block flow entirely, and one hollow ring to allow regular passage. Connected by a sturdy metal tab, its shape resembles a pair of eyeglasses.
During routine operations, the open ring is securely bolted into the line. When a downstream section requires isolation, cleaning, or repair, maintenance crews simply loosen the bolts, rotate the flange to position the solid side inside the pipe, and retighten.
Key Benefits and Applications
Our spectacle blinds serve critical roles across the oil and gas, chemical processing, and water treatment sectors.
- Visual Safety Confirmation: Unlike a closed valve that can leak internally or offer no outward proof of status, a spectacle blind provides an instant visual indicator. Operators can see from a distance whether the line is open or safely blocked.
- Zero-Leakage Isolation: Designed for heavy-duty isolation, these flanges offer tight, leak-proof seals that effectively block hazardous materials, toxic chemicals, or high-pressure gas streams.
- Cost-Efficient Design: They eliminate the need for permanent, complex valve assemblies in sections of your plant that only require occasional isolation.
Why Partner with Rising Star Steel Industries?
As an established industry manufacturer, we focus heavily on materials integrity and strict compliance. Every piece we produce conforms closely to ASME, ANSI, and international quality standards.
- Premium Materials: Available in carbon steel, stainless steel, and high-grade alloys to withstand highly corrosive or high-temperature environments.
- Precision Engineering: Manufactured with exact tolerances to ensure a perfect, flush fit with your existing pipeline infrastructure.
- Rigorous Testing: Every batch undergoes strict quality control and pressure testing to ensure it stands up to extreme operational stress.
Request a Custom Quote Today
Whether you need standard dimensions or custom material configurations for a specialized project, our engineering team is here to deliver. Contact Rising Star Steel Industries Private Limited today to discuss your project specifications, request a quote, or place your order.
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FAQs About Spectacle Blind Flange
A Spectacle Blind Flange is a specialized piping component consisting of two discs—one solid and one open—connected by a web. It is used to either allow flow (open side) or block flow (solid side) in a pipeline without removing the flange from the line.
Spectacle Blind Flanges are commonly used in industries such as oil and gas, petrochemical, chemical processing, power plants, water treatment, and refineries for maintenance and safety shutdown procedures.
They are typically manufactured from high‑grade materials like carbon steel, stainless steel, alloy steel, duplex steel, and other corrosion‑resistant alloys depending on application, pressure, and environmental requirements.
Look for manufacturers with ISO/ASTM certifications, a proven track record of export quality, experienced engineering support, capability to produce customized sizes/standards (like ASME, DIN, EN), and strict quality control practices.
Yes, reputable manufacturers produce Spectacle Blind Flanges in compliance with international standards such as ASME B16.48, ANSI, DIN, EN, and API, ensuring safety, compatibility, and reliability.
Absolutely. Many manufacturers offer customization in terms of size, material grade, pressure class, and surface finish to meet specific project requirements and international market demands
