The Raised Face (RF) Flange is the most common type of flange used in industrial piping systems. It features a raised sealing surface with concentric grooves, designed to compress gaskets evenly and create a tight, leak-proof connection.Manufactured from high-quality carbon steel (A105, Q235, 20#) or stainless steel (304, 316, 304L, 316L), our RF flanges are precision forged and machined to meet international standards. The raised face provides a smaller contact area for the gasket, concentrating the bolt load to ensure a reliable seal, even in medium-to-high pressure applications.
Why Choose Us / Advantage
Material Traceability: Mill test certificates (MTC) provided for all materials.
Third-Party Test Available: We accept SGS, BV or TUV inspection at our factory.
Quick Lead Time: Standard sizes in stock; 3-7 days for delivery, 15-30 days for customized orders.
Export Packaging: Reinforced plywood cases with fumigation certificates, including flange protectors.
12-Month Quality Warranty: Replacement or repair available for non-artificial damage within the warranty period.
Technical Data
★ Standard: ANSI/ASME B16.5, GB/T 9119, DIN 2573, JIS B2220
★ Body Material: Carbon Steel (A105, Q235, 20#); Stainless Steel (304, 316, 304L, 316L)
★ Pressure Class: Class 150, 300, 600, 900, 1500, 2500 (PN10~PN160)
★ Size Range: DN15 ~ DN2000 (1/2" ~ 80")
★ Face Type: Raised Face (RF)
★ Surface Treatment: Anti-rust oil (carbon steel) / Pickling & passivation (stainless steel)
Applications
● Oil & gas and petrochemical processing pipelines
● Power plant steam and condensate systems
● Municipal water supply and treatment piping
● General industrial piping with medium-to-high pressure requirements
● HVAC and process piping systems
