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ANSI Reducing Flange Connection
Secure Connections. Industrial Durability.
The AP Stainless ANSI Flange is designed for high-performance piping systems requiring standardized flange connections. Built from 304 Stainless Steel, this fitting delivers exceptional corrosion resistance, clean installation, and long-term reliability in demanding environments.
SKU: S16571

Key Features
- Proven Technology: Simple and robust connection ensures long-term system reliability.
- Flameless Installation: Clean, safe assembly reduces installation time and labor costs.
- Cost Efficiency: Achieve over 50% reduction in traditional installation costs.
- Vibration Absorption: Elastomeric connections absorb vibration, thermal expansion, and contraction.
- Corrosion Resistance: Chromium dioxide layer protects against harsh environments.
- Fluid Integrity: No risk of contamination to conveyed fluids.
- UV Stability: No degradation from UV exposure.
- Low Expansion: Thermal expansion factor of only 16, ensuring dimensional stability.
Size Range & Bolt Configuration
Available in 2 1/2″ to 10″, each ANSI Flange is supplied with (2) Union Connectors and bolts for secure installation:
- 2 1/2″–3″: Includes 4 bolts
- 4″–10″: Includes 1 union and 8 bolts
Material
- 304 Stainless Steel: Hygienic, durable, and corrosion-resistant for long-term use in industrial environments.
Seal Options
- EPDM: Standard seal for press connections, suitable for general applications
- FKM: Optional seal for high-temperature and chemical environments
Applications
- Compressed Air / Inert Gases: Ideal for corrosive environments and food-grade systems
- Chemical Handling: Excellent corrosion resistance
- Cooling Systems: Coolers, cooling towers, and chillers (glycol-based)
- Process Water: Reliable in industrial water systems
- Oils: Suitable for cutting fluids and lubricants
- Power Generation: Built to perform in demanding energy sector conditions
Certifications
- ASME B31.1, ASME B31.3, ASME B31.9
- ASTM A312
- ISO 8573-1
Warranty
- 10-Year Warranty on all AP Stainless fittings

Additional information
Weight
4.25 lbs
ANSI Reducing Flange
63mm (2-1/2") Pipe to 50mm (2") Flange, 63mm (2-1/2") Pipe to 80mm (3") Flange, 80mm (3") Pipe to 100mm (4") Flange, 100mm (4") Pipe to 125mm (5") Flange, 125mm (5") Pipe to 100mm (4") Flange, 125mm (5") Pipe to 150mm (6") Flange, 150mm (6") Pipe to 125mm (5") Flange, 200mm (8") Pipe to 150mm (6") Flange, 250mm (10") Pipe to 200mm (8") Flange
Color
Blue, Silver Metallic
Features
Bolts and Gasket Included, High Flow
Pressure
188 PSI, 1mbar/0.03inhg (Full industrial vacuum), 200 PSI
Connection
Press
Temperature
EPDM -4°F to +248°F
Material
Stainless Steel
AP Stainless Certification
ASME, CE, EN, ISO 14001, ISO 45001, ISO 9001, TS, TUV, UL, ASME B31.1, ASME B31.3, ASME B31.9, ASTM A312, ISO 8573-1