BS 4504 Stainless Steel Blind flanges are the British standard for sealing piping systems, now largely aligned with European PN ratings. Available in 304/304L, 316/316L, and titanium-stabilized 316Ti, these solid discs provide exceptional corrosion resistance and hygiene. They are used to terminate flow in food processing, pharmaceutical, and marine sectors. The blind design allows for easy pressure testing and future line extensions, ensuring a durable, leak-proof seal in demanding chemical environments.
Technical attributes
Standard: BS 4504 / EN 1092-1
Flange Type: Code 105 (Blind)
Material Grade: A182 F304 / F304L / F316 / F316L / F316Ti
Material Number: 1.4301 / 1.4307 / 1.4401 / 1.4404 / 1.4571
Pressure Rating: PN 6 to PN 100
Size Range: DN 10 to DN 2000
Manufacturing: Forged and Machined
Facing Type: Raised Face (RF) / Flat Face (FF)
Surface Finish: 3.2 to 12.5 micrometers
Carbon Content: Max 0.030 percent (L-Grades)
Chromium Content: 16.0 to 18.5 percent
Nickel Content: 8.0 to 14.0 percent
Molybdenum: 2.0 to 3.0 percent (316 series)
Stabilization: Titanium (for 316Ti)
Yield Strength: Min 170 to 205 MPa
Hardness: Max 187 HBW
Certification: EN 10204 3.1
Service Temp: -196℃ to 600℃
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
