ANSI B16.5 Slip-on Flanges

Reliable and Cost-Effective Flange Solution for Industrial Piping

ANSI B16.5 Slip-On Flanges are manufactured in accordance with ASME/ANSI B16.5 standards and are widely used in industrial piping systems due to their simple installation, reliable performance, and cost-effectiveness. The flange is designed to slide over the pipe before being welded on both the inside and outside, providing excellent alignment and a secure connection. This design reduces installation time while ensuring dependable sealing performance for low-, medium-, and high-pressure applications.

Premium Materials and Precision Manufacturing

Our ANSI B16.5 Slip-On Flanges are produced from high-quality carbon steel, stainless steel, alloy steel, duplex stainless steel, and other specialized materials to meet the requirements of various industrial environments. Advanced forging technology, precision CNC machining, controlled heat treatment, and strict quality inspections ensure outstanding dimensional accuracy, superior mechanical strength, and excellent surface finish. Every flange is manufactured in full compliance with ASME/ANSI B16.5 specifications to ensure compatibility with international piping systems.

Excellent Mechanical Strength and Sealing Performance

Designed for long-term industrial service, ANSI B16.5 Slip-On Flanges provide excellent resistance to pressure, temperature variations, corrosion, and mechanical stress. Double fillet welding on both sides of the flange enhances structural integrity and improves sealing reliability. When used with appropriate gaskets and bolting systems, these flanges provide stable, leak-free performance in demanding operating conditions while reducing installation complexity compared to other flange types.

Wide Range of Sizes and Pressure Classes

Our slip-on flanges are available in sizes from 1/2 inch to 24 inches, with larger sizes available upon request. Pressure ratings include Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, and Class 2500, allowing them to meet a wide variety of piping requirements. Various facing options, including Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ), are available depending on system specifications. Customized dimensions, special machining, and protective surface treatments can also be provided.

Applications Across Multiple Industries

ANSI B16.5 Slip-On Flanges are extensively used in oil and gas, petrochemical processing, chemical plants, power generation, water treatment facilities, marine engineering, shipbuilding, HVAC systems, fire protection networks, food and beverage processing, pharmaceutical manufacturing, pulp and paper industries, and general industrial piping systems. Their ease of installation and dependable performance make them ideal for both new construction and maintenance projects.

Strict Quality Control and Inspection

Every ANSI B16.5 Slip-On Flange undergoes comprehensive quality control throughout the production process. Raw material verification, chemical composition analysis, mechanical property testing, dimensional inspection, hardness testing, non-destructive testing (NDT), surface quality inspection, and final visual examination are conducted to ensure compliance with international standards and customer specifications. Additional testing such as ultrasonic testing, magnetic particle inspection, and third-party certification can be provided upon request.

OEM Manufacturing and Global Supply

We provide OEM and customized manufacturing services to meet the specific requirements of EPC contractors, distributors, wholesalers, and industrial end users worldwide. Customized materials, pressure ratings, coatings, laser marking, packaging, and inspection documentation are available according to project needs. Backed by advanced manufacturing equipment, experienced engineering teams, and efficient global logistics, we supply high-quality ANSI B16.5 Slip-On Flanges with consistent quality, competitive lead times, and reliable worldwide delivery.