Food Grade Sanitary and Marine Corrosion Resistant Flanges
Stainless steel flange manufacturers serve two critical markets: food grade sanitary applications and marine applications requiring superior corrosion resistance.
Brides en acier inoxydable sanitaire de qualité alimentaire
Food and beverage, pharmaceutical industries require flanges meeting strict hygiene standards.
Exigences matérielles
- Grade 304/304L: General food processing
- Grade 316/316L: High corrosion resistance, acidic foods
- Grade 316Ti: Enhanced temperature resistance
- Duplex 2205: Demanding chemical environments
Surface Finish Standards
- Mill Finish: Ra 3.2 microns, non-contact surfaces
- Food Grade: Ra 0.8 microns, product contact
- Pharmaceutical: Ra 0.5 microns, sterile processing
- Electropolished: Ra 0.4 microns, high purity
Sanitary Flange Standards
- ISO 2852: International sanitary fittings
- DIN 11851: European dairy industry
- 3A Sanitary: US food industry standard
- Tri-Clamp: Quick disconnect system
Applications
- Dairy processing
- Beverage production
- Fabrication de produits pharmaceutiques
- Biotech fermentation
Bride résistante à la corrosion pour usage maritime
Marine environments present extreme corrosion challenges from saltwater and humidity.
Material Selection for Marine
- 316L: General marine, boat fittings, PREN 24-26
- 2205 Duplex: Offshore platforms, PREN 32-38
- 2507 Super Duplex: Deep sea, PREN 40-45
- 904L: Seawater systems, PREN 34-38
PREN Formula
Pitting Resistance Equivalent Number: PREN = Cr + 3.3 x Mo + 16 x N
- PREN below 25: Mild corrosion resistance
- PREN 25-32: Good corrosion resistance
- PREN 32-40: Very good corrosion resistance
- PREN above 40: Excellent corrosion resistance
Applications marines
- Construction navale et ingénierie marine
- Plates-formes pétrolières et gazières offshore
- Installations de dessalement
- Systèmes de refroidissement à l'eau de mer
Mesures de protection
- Cathodic Protection: Sacrificial anodes
- Coatings: Epoxy, zinc-rich primers
- Design: Avoid crevices and water traps
- Regular inspection and cleaning
Certifications
Food Grade
- FDA 21 CFR 177 (USA)
- EC 1935/2004 (Europe)
- LFGB (Germany)
Marine Certifications
- DNV-GL
- Lloyds Register
- ABS
- CCS
Songhai Flange manufactures food grade sanitary stainless steel flanges and corrosion resistant marine flanges with international certifications.
WhatsApp : +86-18658777855
Courriel : 1007788887@qq.com
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