Flanges for pipes and fittings made of carbon, alloy, corrosion-resistant, duplex, and super duplex steels according to ASME standards. All types of flanges for industrial applications. Detailed specifications and expert consultation available. Flanges ensure reliable and leak-tight connections of pipelines and components under conditions of high temperature, pressure, and exposure to aggressive chemical environments. The product range includes weld neck, blind, slip-on, through, socket weld, threaded, and lap joint flanges made from carbon and stainless steels, as well as duplex and heat-resistant alloys. All products are manufactured in accordance with international standards such as ASME (e.g., ASME B16.5, ASME B16.47), as well as API and EN standards, ensuring compatibility with industrial equipment, operational safety, and long service life. Supplies are delivered in bulk quantities to support the uninterrupted execution of industrial projects.

Flange specifications and dimensions

ASME flanges are manufactured in various configurations with different diameters, wall thicknesses, and connection types, allowing them to be adapted to specific pipeline operating conditions. The main materials include carbon steel (ASTM A105), stainless steel (ASTM A182 F304/F316), duplex and super duplex alloys, and heat-resistant steels. Compliance with ASME B16.5 and ASME B16.47 standards ensures that the connections remain resistant to high pressures, temperature fluctuations, and aggressive chemical environments. Proper selection of flange dimensions and characteristics prevents deformation and leakage, reduces maintenance requirements, and improves the efficiency of pipeline systems.

ASME and EN flange designs

Flanges manufactured according to ASME standards meet strict requirements for strength, tightness, and dimensional accuracy. Standards such as ASME B16.5 and ASME B16.47 regulate dimensions, wall thickness, bolt hole placement, and sealing surface types. This ensures compatibility between pipeline components produced by different manufacturers and safe operation under high pressure and temperature conditions.

EN-standard flanges are also widely used in industrial practice; however, for international projects—especially in the oil and gas and power generation sectors—ASME flanges are often preferred, which contributes to their strong demand in the global market.

FAQ

1. What standards regulate pipeline flanges?

Flanges are manufactured in accordance with international standards such as ASME B16.5, ASME B16.47, and ASME B16.36. These standards define dimensions, wall thickness, bolt hole placement, and sealing surface types, ensuring compatibility and safe operation.

2. What is the difference between ASME and EN flanges?

ASME flanges are produced using the inch-based system (NPS) and are designed for high pressures and temperatures, whereas EN flanges are based on the metric system (DN). For international projects and supplies to oil and gas facilities, ASME flanges are more commonly selected.

3. What materials are ASME flanges made from?

Common materials include carbon steel (ASTM A105), stainless steel (ASTM A182 F304/F316), duplex alloys, and heat-resistant steels. Material selection depends on pressure, temperature, and the composition of the transported medium.

4. Where are ASME flanges used?

ASME flanges are widely used in the oil and gas, chemical, power generation, and thermal energy industries. They are applied in high-pressure pipelines, storage tanks, pumping stations, and compressor units.

5. Which types of ASME flanges are most commonly used?

The most frequently used types include welding neck, blind, slip-on, threaded, socket weld, and lap joint flanges. All are manufactured according to ASME B16.5 and provide reliable, leak-tight connections.