Slipon Raised Face Flanges Manufacturer


Unifit Metalloys is the leading Slipon Raised Face Flange Manufacturers in India. Slipon Raised Face Flange is the most common type of Flange used in process plant applications & it can be easily recognized because the gasket surface area is positioned above the bolting line of the flange. This face composes permits the utilization of a wide mix of gasket designs, including flat ring sheet types & metallic combination of gasket designs, including flat ring sheet types & metallic composites such as spiral wound & double jacketed types.

We are Manufacturer, Supplier, and Exporter of ASME 16.5 Slip On Flanges / SORF Flanges. Slip-on flanges are simple to utilize in fabricated applications. These spines are appended to the pipe by filet welding at the center point and toward the finish of the pipe inside the rib. These are available in wide variety of sizes and applications.

Unifit Metalloys came into existence and began our journey as the profound manufacturer, exporter, and supplier of Flanges & High Pressure Forged Fittings. Our experts hold out the fabrication procedure in accordance with the industry laid parameters and thus, introduce offerings imparted with perfect finish & dimensional accuracy.

To satisfy our customers’ expectations and to offer them products of incomparable quality standard, we have developed our work in a way equipped with all the indispensable requirements. There, we have grouped most recent apparatus and instruments, with the goal that our business undertakings must be expert productively. These spines are joined to the pipe by filet welding at the center point and toward the finish of the pipe inside the rib. The complete production procedure is carried out as per the industry laid parameters, so that outcomes offered must be integrated with flawless design. Thus, we are here occupied with our significant business to set up our clients fulfilled and to offer them items with guaranteed capital esteem.

We are offering the optimum quality of SORF (Slip-on Raised Face) Flange to our clients. The offered flange is manufactured under the guidance of diligent professionals using quality approved raw materials with the aid of progressive techniques. This flange finds its application in chemical process piping to allow the hassle-free passage of fluids. Besides, this product can be purchased from us in different specifications at market leading prices.


  • Easy Installation

  • Supreme Finish

  • Corrosion Resistant

  • Rigid Design


  • Slip-On Flanges used in Oil and Gas Pipeline

  • Slip-On Flanges used in Chemical Industry

  • Slip-On Flanges used in Plumbing

  • Slip-On Flanges used in Oil Gas Industry

  • Slip-On Flanges used in Water Supply Systems

  • Slip-On Flanges used in Paper Pulp Industry

  • Slip-On Flanges used in Power Plant

  • Slip-On Flanges used in Fabrication Industry

  • Slip-On Flanges used in General purpose applications

  • Slip-On Flanges used in Food Processing Industry

  • Slip-On Flanges used in Structural Pipe

  • Slip-On Flanges used in Heat Exchangers

Carbon Steel Flange in India

Slip-on flanges are generally preferred by users over weld neck flanges, as they are a cheaper option than weld neck flange and the fact that less accuracy is required when cutting pipe to length.

Slip-on flanges are available with raised, flat or RTJ faces, and are also available in orifice configurations.

We offer slip-on pipe flanges manufactured at our facility to companies in various industries including shipbuilding, power generation, petrochemical plants, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants and turnkey projects among others.

Our products are widely exported to countries and regions such as the United States, Europe, Russia, Turkey, Malaysia, the UAE, Saudi Arabia, Iran, Brazil, Chile, Mexico, South Africa, Jordan, Tunisia, Vietnam, Indonesia, Thailand, Singapore, Colombia, and Sri Lanka.

Slip-on Flange, SO Forged Flanges Production Range

  • Size: 1/2″ (15 NB) to 48″ (1200NB)
  • Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
  • Carbon Steel Threaded Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
  • Stainless Steel Threaded Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
  • Alloy Steel Threaded Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
  • Special Alloy Threaded Flanges: Duplex, Super Duplex, Nickel Alloys
  • Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • Coating/Surface Treatment:Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
  • Value Added Services: CNC Machining, Customised Flanges

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All elbow fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At UNIFIT METALLOYS INC, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.

Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report