The EN 1092-1 flange is a standard specification for flanges commonly used in European industrial piping systems. Manufactured to meet stringent quality and safety standards, these flanges are highly reliable for connecting pipes, valves, and other piping components in various industries such as oil & gas, petrochemical, water treatment, and power generation.
Key Features of EN 1092-1 Flanges
Material Versatility: Available in a range of materials, including Stainless Steel, Carbon Steel, Alloy Steel, and Duplex/Super Duplex Steel, ensuring suitability for diverse applications and environments.
Types of Flanges: Includes a wide variety of designs such as Slip-On, Weld Neck, Blind, Threaded, Lap Joint, and Socket Weld flanges.
Pressure Ratings: Designed to handle pressure ratings from PN6 to PN40, making them suitable for both low and high-pressure systems.
Corrosion Resistance: High resistance to corrosion, especially in stainless steel variants, ensures longevity even in harsh conditions.
Common EN 1092-1 Pressure Classes (PN Ratings)
PN 6
PN 10
PN 16
PN 25
PN 40
PN 64 (Less Common)
PN 100 and Above
EN 1092-1 Weight Chart
Nominal Size (DN)
Type 01 (Weld Neck) Weight (kg)
Type 02 (Loose Plate) Weight (kg)
Type 05 (Blind) Weight (kg)
Type 11 (Threaded) Weight (kg)
Type 12 (Hubbed Slip-On) Weight (kg)
10
0.80
0.60
0.80
0.70
0.85
15
1.00
0.80
1.10
0.90
1.10
20
1.20
1.00
1.40
1.10
1.40
25
1.50
1.20
1.70
1.30
1.70
32
2.10
1.80
2.40
1.80
2.40
40
2.40
2.10
2.90
2.10
2.90
50
3.30
2.80
3.50
2.60
3.60
65
4.90
4.10
5.20
4.20
5.50
80
6.10
5.10
6.80
5.60
7.00
100
8.60
7.30
10.00
8.00
10.50
125
13.20
11.30
14.50
11.50
15.00
150
16.30
14.00
19.50
15.00
19.50
200
27.00
23.00
34.00
25.00
35.00
250
39.00
34.00
49.00
36.00
51.00
300
55.00
47.00
68.00
50.00
70.00
EN 1092-1 Flange Specification
High-Temperature Applications
EN 1092-1 flanges are engineered to withstand extreme heat in applications like power generation, petrochemical processing, and thermal plants. High-temperature variants are manufactured using materials such as Alloy Steel and Stainless Steel with enhanced thermal stability. These flanges exhibit:
Thermal Expansion Resistance: Prevents deformation or cracking under heat stress.
Oxidation Resistance: Maintains structural integrity in high-temperature environments.
Long Service Life: Withstands prolonged exposure to elevated temperatures.
Low-Temperature Applications
For applications in cryogenic or sub-zero environments, EN 1092-1 flanges provide unmatched reliability. Common use cases include:
Oil & Gas Extraction: Operating in Arctic or deep-sea conditions.
Chemical Processing: Handling liquefied gases and low-temperature chemicals. Key features include:
Low Thermal Conductivity: Reduces heat transfer in freezing conditions.
Impact Toughness: Prevents brittleness and fracture at low temperatures.
Specialized Materials: Flanges are manufactured from Carbon Steel or Duplex/Super Duplex Stainless Steel, ensuring durability under freezing conditions.
Materials
EN 1092-1 flanges are manufactured using a range of materials to suit specific operating conditions:
Stainless Steel: Known for corrosion resistance and thermal stability.
Carbon Steel: Popular for its strength and cost-effectiveness.
Alloy Steel: Ideal for high-pressure and high-temperature environments.
Duplex and Super Duplex Stainless Steel: Offers excellent strength and resistance to stress corrosion cracking.
Nickel Alloys: Suited for extreme environments, including high heat and harsh chemicals.
The material selection depends on factors such as operating pressure, temperature, and media type.
Flange Face Types
To ensure a secure and leak-proof connection, EN 1092-1 flanges are available in various face types:
Flat Face (FF): Used in low-pressure systems with soft gasket materials.
Raised Face (RF): Most common type, designed for a tighter seal in high-pressure applications.
Ring Type Joint (RTJ): Provides a robust seal for high-pressure and high-temperature systems.
Tongue and Groove (T&G): Ensures accurate alignment and high sealing efficiency.
Male and Female (M&F): Used in systems requiring precise gasket placement.
Each face type serves specific sealing requirements, ensuring compatibility with various industrial standards.