DIPTI METAL INDUSTRIES – Your Premier Worldwide Slip On Flanges Manufacturer, Global Largest Slip On Flanges Stockist, Top Slip On Flanges Supplier, and Biggest ASME B16.5 Slip On Flanges Exporter for industrial piping systems. Established in 2009, we are an ISO 9001:2015 certified firm based in Mumbai, India, specializing in precision-engineered Forged Slip-On (SO) Flanges. The Slip-On flange is designed to be easily slipped over the pipe and then welded at both the hub (inside and outside) by means of fillet welds. This design makes it easy to align, requiring less precision cutting, and is ideal for low-pressure, large-scale piping systems.
Our Slip-On Flanges adhere strictly to international standards, including ASME B16.5 (Class 150 to Class 2500) and EN 1092-1 (PN6 to PN40), ensuring compliance across global projects. They are available in Stainless Steel (A182 F304/L, F316/L), Carbon Steel (A105/N), Alloy Steel, and Duplex/Super Duplex grades. As a major SO Flange Wholesaler and Largest Stockist, we maintain a large inventory for immediate dispatch globally. Every flange is forged for superior strength and supplied with full material traceability via EN 10204 3.1 MTCs.
A Slip-On Flange (often abbreviated as SO Flange) is one of the most widely used types of forged flanges in industrial piping. It is easily recognized by its large inner bore which allows the pipe to be "slipped" inside the flange before final welding. Unlike a Weld Neck flange, a Slip-On flange requires two fillet welds—one on the outside and one on the inside—to secure the pipe. This design simplifies fabrication by reducing the precision required for pipe cutting and alignment, which significantly lowers manufacturing costs and erection time.
The core advantage of the Slip-On Flange is:
As a major global Slip-On Flange manufacturer and Largest Slip On Flanges Stockist in Mumbai, DIPTI METAL INDUSTRIES provides an extensive range of SO Flanges, adhering strictly to ASME B16.5 (up to Class 2500, though generally limited to Class 600 or below) and European standard EN 1092-1 (PN rated flanges). We ensure every flange is a reliable component in your piping system. We stock other flange types too, like Weld Neck Flanges and Blind Flanges.
DIPTI METAL INDUSTRIES offers a comprehensive inventory of Slip-On Flanges in all standard sizes and pressure classes, ensuring immediate availability for project deadlines. We are a Top Slip On Flanges Manufacturer and Biggest Slip On Flanges Exporter in this range.
| Standard | Nominal Size (NPS / DN) | Pressure Class (ASME) | Pressure Rating (EN) |
|---|---|---|---|
| ASME B16.5 | 1/2" to 24" | Class 150, 300, 600 (Typically) | N/A |
| ASME B16.47 | 26" to 60" | Class 150, 300 (Series A / B) | N/A |
| EN 1092-1 | DN 15 to DN 1200 | N/A | PN 6, PN 10, PN 16, PN 25, PN 40 |
| Finish | Smooth Finish, Serrated Finish (for gasket seating), Zinc Plated, Hot-Dip Galvanized | ||
We also supply associated fittings like Ring and Spacer Flanges, and Spectacle Blind Flanges to match Slip-On connections.
As a Largest Stockist and Top Supplier, we provide Slip-On Flanges in every major material class, ensuring worldwide compatibility for corrosion, temperature, and pressure requirements.
Ideal for corrosive environments, typically specified as ASTM A182 forgings.
The most common and cost-effective material, typically supplied as ASTM A105 or A350 for low temp.
Used for high-temperature service where creep strength is critical, typically specified as ASTM A182 forgings.
For superior corrosion resistance in aggressive chloride environments (offshore, desalination).
For ultimate resistance against extreme corrosion, high-heat, and specific chemical media.
For heat transfer, plumbing, and marine applications requiring anti-fouling or specific conductivity.
Our Slip-On Flanges are manufactured in strict compliance with major international standards, ensuring safety and global compatibility. We are a Top Supplier specializing in both ASME and EN/DIN standards.
| Category | Applicable Standards (Primary) | Compliance & Scope |
|---|---|---|
| Dimensional Standard | ASME B16.5 (Pipe Flanges and Flanged Fittings), ASME B16.47 (Large Flanges), EN 1092-1 (Steel Flanges), DIN Flange Standards | Defines all dimensions, tolerances, bolting patterns, and pressure-temperature ratings for Slip-On flanges. |
| Material Specification | ASTM A105/N, ASTM A350, ASTM A182, ASTM B564, ASTM B381 | Governing the chemical composition and mechanical properties of the starting forged material for the flange body. |
| Associated Bolting | ASTM A193/A194 (Bolting for High Pressure/Temp Service) | Ensures the correct bolting materials are used for the flange joint integrity. |
| Quality & Traceability | EN 10204 3.1 | Mandatory Mill Test Certificates, guaranteeing full material traceability from the forge shop. |
| Testing & Inspection | PMI (Positive Material Identification), Hardness Testing, Hydrostatic Testing | Ensuring correct alloy composition, mechanical soundness, and leak-tightness. We facilitate TPI by BV, TUV, DNV. |
Our Slip-On Flanges are the ideal choice for creating reliable, cost-effective, and permanent flanged joints in piping systems, especially where pressure conditions are moderate and cost control is essential.
As a Leading Slip-On Flange Manufacturer in Mumbai, DIPTI METAL INDUSTRIES ensures its products are crucial for the efficient and safe operation of these systems globally.
DIPTI METAL INDUSTRIES is a proud Worldwide Slip-On Flange Exporter, Global Slip On Flanges Supplier, Leading Slip On Flanges Stockist, and Major Slip On Flanges Wholesaler of ASME B16.5 Forged Flanges to over 190 countries worldwide. We guarantee compliant and rapid international delivery of all grades of SO Flanges for your critical projects.
Are you searching for dependable, high-quality Forged Slip-On Flanges (SO Flanges) in Stainless Steel, Carbon Steel, Alloy Steel, or Duplex that comply with ASME B16.5 or EN 1092-1 for your low-pressure piping systems? Contact Dipti Metal Industries, your expert global Slip-On Flange Manufacturer, Largest Slip On Flanges Stockist, Top Slip On Flanges Supplier, and Biggest Slip On Flanges Exporter, today to discuss your specific requirements or to request a personalized, custom quote. Our knowledgeable and responsive team is dedicated to providing you with the most effective, safest, and most reliable Slip-On Flange solutions. We guarantee long-term operational excellence and unparalleled project success in demanding environments.
Price guidance (non-binding): USD 0.80–500.00 per unit depending on material, size, class, quantity, and delivery terms. Final prices are quotation-based for these essential flange materials.
Global export expertise: Seaworthy export packing • Full documentation & TPI. We are a worldwide Slip-On Flange Exporter of quality ASME B16.5 Flanges. Our full contact details are available on our Contact Us page.