Stainless Steel Slip-On Flange

​Product Overview

Stainless Steel Slip-On Flanges are among the most widely used fittings for connecting pipes in water treatment, HVAC, food processing, and low-pressure chemical systems. Crafted from premium grades like ​304 and ​316L, and compliant with ​ASME B16.5 and ​EN 1092-1 standards, these flanges offer lightweight design, easy installation, and unbeatable value for small-to-medium diameter low-pressure pipelines.

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Product Specifications

​Material & Manufacturing

• Grades: 304, 304L, 316, 316L, 321
• Standards: ASTM A182, ASME B16.5, DIN 2576
• Surface Finish: Mirror Polish (Ra≤0.6μm), Pickling & Passivation, Sandblasted

​Design & Dimensions

• Face Types: Raised Face (RF), Flat Face (FF)
• Bolt Holes: ANSI/ASME B16.5 compliant (imperial/metric options)
• Manufacturing: Precision Forged or Plate Cut

​Size & Pressure

• Diameter Range: 1/2″ to 24″ (DN15-DN600)
• Pressure Rating: Class 150 to Class 300 (PN6-PN40)
• Temperature Range: -50°C to 300°C (standard conditions)

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Key Advantages

✅ ​Fast Installation: Slips directly over pipes for welding, reducing installation time by 50%.
✅ ​Cost Savings: 30% lower material cost vs. weld neck flanges.
✅ ​Corrosion Resistance: Passes salt spray testing (ASTM B117), ideal for weak acids, alkalis, and steam.
✅ ​Custom Flexibility: Non-standard bolt patterns, oval/square shapes, and nickel plating available.

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Applications

• ​Water Treatment: Municipal pipelines, wastewater equipment
• ​HVAC Systems: Chiller units, fan coil connections
• ​Food & Beverage: CIP cleaning lines, low-pressure filling systems (3A certified)
• ​Low-Pressure Chemical: Cooling water circuits, compressed air lines
• ​Shipbuilding: Ballast water pipes, cabin ventilation

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Certifications

• ​International Compliance: ISO 9001, CE, RoHS, EN 10204 3.1
• ​Quality Tests:

• Penetrant Testing (PT): Surface crack inspection
• Hardness Testing (HB/HRB): ASTM A182 compliant
• Dimensional Tolerance: ±0.5mm (ASME B16.5 Class B)

​Packaging & Logistics

• ​Export Packaging: Wooden pallets with anti-rust paper and shrink wrap.
• ​Shipping Options: EXW/FOB terms; LCL/FCL ocean freight and air express.
• ​Lead Time: 5-10 days (standard), 15-20 days (custom).

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Why Choose Us?

🔹 ​Factory Direct: Laser cutting and CNC machining capabilities (MOQ 10 pcs).
🔹 ​Technical Support: Free flange sizing tools and welding procedure guides (WPS).
🔹 ​Quality Guarantee: 100% dimensional checks + surface finish inspection.
🔹 ​Stock Availability: 304/316 grades ready for 24-hour flash shipping.