Flat Welding Raised Face Flange

Engineering value presentation

Parameters Index

Surface roughness Ra ≤ 3.2μm (sealing surface finishing)

Weight saving of carbon steel flange 35% lighter than neck flange (DN300 comparison)

Fatigue life ＞10,000 pressure cycles (MSS SP-44)

Corrosion allowance ≥3mm (chemical customized version)

Core advantages of the product

1. Full system compatibility

International standards for Flat Welding Raised Face Flanges:

ASME B16.5 (American Standard) | PN Series (DIN) | JIS 10K/20K (Japanese Standard)

Diameter range: DN15~DN600 (1/2"~24")

Seamless replacement for global projects

2. Installation efficiency

Thinning design of welded joint: groove angle 37.5°±2.5° (VS 45° traditional flange)

Bolt hole tolerance: ±1mm (ISO 5210)

Pipeline docking speed increased by 40%

3. Sealing reliability

Flat-weld raised flange boss height: 3.2mm (1/8 inch) standard (ASME B16.5)

Probability of sealing failure: <0.01% (with gaskets of the same grade)

Zero leakage guarantee under high pressure conditions

4. Pressure bearing capacity

Class 150: up to 19.6 bar @ 38°C

Class 300: up to 51.1 bar @ 38°C

Low temperature adaptability: -196°C to +538°C (ASTM A105 material)

Covering extreme conditions in energy/chemical industry

Initiate an inquiry to get your solution!