Slip on Flanges Manufacturer & Exporter

Slip On Flange

Slip On Flange Manufacturer, Supplier And Exporter

‘C-Way Engineering Exports, is a market leader of Slip On Flanges, both in manufacturing, supplying, and exporting for India. We maintain a wide variety of standard sizes in both carbon and stainless steel, ensuring quick delivery to meet your project needs. Our Slip On Flanges are crafted with an expressed intent to match the international quality standards like ANSI/ASME B16.5, ANSI/ASME B16.47 Series A & B, and API.

C-Way Engineering Exports leverages its expertise to manufacture, supply, and export slip on flanges in a diverse range of materials. This includes industry standard varieties like carbon steel and stainless steel, whereas one has the choice of alloy steel or more exotic types such as Duplex, Super Duplex, Nickel Alloys, Hastelloy, and Inconel. Our commitment to quality and reliability has earned us a global reputation, serving customers across six continents and over 110 countries.

Slip-on flanges feature a bore that slightly exceeds the outer diameter of the connecting pipe, allowing the flange to slide over the pipe end. They are typically secured in place with fillet welds on both the inside and outside of the flange. These flanges have a flat face or a raised face for gasket sealing. Slip-on flanges are widely used in low-pressure and non-critical applications where easy installation and cost-effectiveness are desired, such as water supply systems, HVAC systems, and plumbing.

All Flanges with standard sizes and materials are readily available in stock for immediate delivery. "Looking for large diameter Flanges ? Contact us today for Customized Flanges.


slip on flange

Applications of Slip-On Flanges

Water Supply Systems: Slip On Flanges are widely used in water treatment and distribution plants and also plumbing systems for connecting pipes, valves, and fittings.

HVAC Systems: Air conditioning (HVAC) systems, heating, ventilation, and ductwork connections, air handling units, and fan installations Slip On Flanges are used.

Fire Protection Systems: Slip On Flanges are used for connecting pipes and fittings in fire sprinkler systems, fire fighting equipment, and hydrant installations.

Low-Pressure Piping Systems: Low-pressure applications such as steam lines, condensate lines, drainage systems, and utility piping Slip On Flanges are used.

Chemical Processing Plants: Slip On Flanges are very useful for applications where chemicals are used such as chemical plants, refineries, and processing facilities for non-critical piping systems, utilities, and auxiliary services.

High Strength: Weld Neck Flanges provide a strong and rigid connection, capable of withstanding high pressure and temperature conditions.

Leak-Proof: The full penetration weld between the neck and the pipe ensures a leak-proof connection, minimizing the risk of fluid leakage.

Reduced Stress Concentration: The smooth transition from the neck to the pipe reduces stress concentration, preventing fatigue failure and enhancing the structural integrity of the joint.

Suitability for High-Pressure Applications: Weld Neck Flanges are ideal for applications requiring high-pressure containment, such as in oil and gas, power generation, and chemical processing industries.

Advantages of Slip-On Flanges

Slip-on Flange Manufacturers must maintain certain qualities during production to have the highest quality of slip-on flanges. Some of those qualities include :

Ease of Installation: Slip-on flanges are easy to install; they do not require any special tools or equipment other than welding equipment.

Cost-Effective: Slip-on flanges are more cost-effective compared to other types of flanges and suitable for low-budget projects.

Versatility: Slip-on flanges provide flexibility in piping system design; they can be used with a wide range of pipe materials, sizes, and schedules.

Leak-Proof Joint: In low-pressure applications, the welded connection between the flange and the pipe provides a leak-proof joint and ensures reliable performance.


We conduct a series of testing procedures to ensure the quality, reliability, and performance of our Flanges.

These tests are conducted at various stages of manufacturing, from raw material inspection to the final product testing.

  • Dimensional Inspection
  • Visual Inspection
  • Non-Destructive Testing
    • Ultrasonic Testing
    • Magnetic Particle Testing
    • Liquid Penetrant Testing
    • Radiographic Testing
  • Mechanical Testing
    • Tensile Testing
    • Hardness Testing
  • Chemical Analysis
  • Intergranular Corrosion Testing
  • Pressure Testing
  • Corrosion Resistance Testing

Type of Flanges:

Specification, Grades, and Material

Flanges Specifications
Flanges Types Slip On Flanges
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75
Size 1/2″ (15 NB) to 48″ (1200 NB)
Standard ANSI/ASME B16.5, ANSI/ASME B16.47 Series A and Series B, MSS SP44, ASA, API 605, API 6A, AWWA, As per Custom Drawings
Pressure Rating Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc
Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove


Stainless Steel ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Duplex Steel ASTM/ASME A/SA 789, 790 – UNS NO S 31803, S 32205, S 32550, S 32750, S 32760.
Carbon Steel 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
Alloys Steel Flanges ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Flanges Duplex, Super Duplex, Nickel Alloys
Flange Face Type Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Nickel Alloys Nickel Alloys 200, Nickel Alloys 201
Hastelloy Hastelloy C-22, Hastelloy C-276, Hastelloy C-2000, Hastelloy C-4, Hastelloy X, Hastelloy B, Hastelloy N, Hastelloy G
Inconel Inconel 600, Inconel 601, Inconel 625, Inconel 625LCF, Inconel 686, Inconel 718, Inconel 800, Inconel 825, Inconel X-750 , Inconel 690, Inconel 602, Inconel 617, Inconel 925, Inconel A-289, Inconel AL-6XN, AL-904L

Certification and Documentation

As per International Industrial standards we provide all the necessary certifications. We provide certification and documentation, including material test reports (MTRs), inspection reports and compliance certificates to ensure product quality and compliance with standards and specifications.

These testing procedures ensure that flanges manufactured by us meet the standards, performance, and regulatory compliance. Our flanges meet stringent quality requirements and provide reliable performance in different industrial applications.

Ready to elevate your industrial operations with top-tier valve solutions? Look no further than ‘C-Way Engineering Exports’, where excellence meets innovation in every valve we manufacture.

We regularly export our products to

With decades of experience in the industry, 'C-Way Engineering Exports’ witnessed the critical importance of utilizing high-quality Flanges that meet international standards. Whether you are in Oil and Gas, petrochemical, power generation, or any other industry relying on efficient and reliable piping systems, investing in high quality valves is essential. Don't compromise on safety, performance, or longevity. Partner with trusted slip on flange manufacturer, supplier and exporter like us ‘C-Way Engineering Exports’, who prioritize quality and adherence to standards, ensuring your projects are built to last.

Contact us today to explore our full range of industrial valves, pipe fittings, pipes & tubes, flanges and experience the excellence of our products and how we can support your piping needs with our expertise and premium-grade valves. Let's build a robust infrastructure together.

All Copyrights © 2024 C-Way Engineering Exports