Slip On Flange (SO Flange)

1️⃣ Product Introduction

                                                                          VikTech Fittings is a leading manufacturer, exporter, and stockist of high-quality Slip On Flanges (SO Flanges) manufactured in compliance with ASME standards including ASME B16.5, ASME B16.47, DIN, EN, and international specifications.

Slip On Flanges are designed to slide over the pipe and are fillet welded both inside and outside to provide strength and leak prevention. These flanges are widely used in low to moderate pressure applications and are preferred for their ease of alignment, cost-effectiveness, and simple installation.

Our Slip On Flanges are precision machined from forged or plate materials, ensuring superior dimensional accuracy, mechanical strength, and corrosion resistance for demanding industrial piping systems.

2️⃣ Technical Specifications

Product Name :   Slip On Flange (SO Flange)

Standards        :   ASME B16.5, ASME B16.47, EN 1092-1, DIN

Size Range      :   ½″ (DN15) to 60″ (DN1500)

Pressure Class :  Class 150, 300, 400, 600, 900, 1500, 2500

Facing Types    :  RF, FF, RTJ

Manufacturing   :  Forged / Plate Cut

Connection Type : Slip-On, Double Fillet Weld

Surface Finish    :  Serrated / Smooth

Certification       :   EN 10204 3.1 / 3.2, IBR, PED (On Request)

3️⃣ Available Material Grades

▶ Carbon Steel (CS)

• ASTM A105

• ASTM A350 LF2

• ASTM A694 F42 / F52 / F60 / F65 / F70

▶ Mild Steel (MS)

• IS 2062 E250

• IS 2041

▶ Stainless Steel (SS)

• ASTM A182 F304 / 304L

• F316 / 316L

• F310

• F321

• F347

▶ Alloy Steel

• ASTM A182 F1

• F5, F9

• F11, F22

• F91

▶ Duplex & Super Duplex

• F51 (UNS S31803)

• F60 (UNS S32205)

• F53 (UNS S32750)

• F55 (UNS S32760)

▶ Nickel Alloys

• Inconel 600 / 625 / 800 / 825

• Monel 400

• Hastelloy C22 / C276

• Alloy 20

▶ Copper Nickel

• 70/30

• 90/10

4️⃣ Size & Pressure Class Range

• Size: ½″ to 60″

• Pressure Ratings: Class 150 to Class 2500

• PN Rating: PN6 to PN400

• Custom drilling & thickness available

5️⃣ Standards & Compliance

• ASME B16.5 (Up to 24″)

• ASME B16.47 Series A & B (Above 24″)

• EN 1092-1

• DIN Standards

• ISO Certified Manufacturing

• IBR Approved (On Request)

• PED Compliance (European Projects)

6️⃣ Dimensional Characteristics

• Bore slightly larger than pipe OD

• Pipe inserted into flange

• Double fillet weld (inside & outside)

• Hubless design

• Ideal for lower pressure service

Dimensional tolerances maintained as per ASME specifications for proper alignment and sealing.

7️⃣ Manufacturing Process

• Raw material forging or plate cutting

• CNC machining

• Drilling & facing

• Serration machining (Phonographic spiral serration)

• Heat treatment (if required)

• Surface finishing

• Final inspection

8️⃣ Pressure & Temperature Ratings

MaterialTemperature RangePressure ClassCarbon SteelUp to 425°CClass 150 – 2500Stainless SteelUp to 870°CPN6 – PN400Alloy SteelUp to 590°CClass 300 – 2500DuplexUp to 300°CHigh pressure service

(Actual rating depends on material grade & ASME pressure-temperature chart.)

9️⃣ Testing & Quality Control

✔ Hydrostatic Test
✔ PMI Testing
✔ Ultrasonic Testing
✔ Hardness & Tensile Testing
✔ Impact Test (Low Temp Grades)
✔ Dimensional Inspection
✔ Third Party Inspection – TUV / BV / SGS / Lloyd’s
✔ Heat Number Traceability
✔ EN 10204 3.1 Certification

🔟 Applications & Industries Served

• Oil & Gas Industry

• Petrochemical Plants

• Refineries

• Power Generation

• Water Treatment

• Marine & Offshore

• Chemical Plants

• Infrastructure Projects

• Fire Fighting & Utility Lines

Slip On Flanges are especially suitable where frequent dismantling is required and alignment flexibility is beneficial.

1️⃣1️⃣ Surface Finish / Coating Options

• Anti-Rust Oil

• Black Paint

• Hot Dip Galvanized (HDG)

• FBE Coated

• Epoxy Coating

• Zinc Coated

1️⃣2️⃣ Export Packing & Marking

• Wooden crates / fumigated pallets

• Bubble wrapped protection

• Plastic face protectors

• Marking: Size, Grade, Class, Heat No., Standard

• Custom project tagging

• 100% seaworthy packing

1️⃣3️⃣ Why Choose VikTech Fittings?

• Ready stock availability

• Competitive factory pricing

• Large diameter project supply

• Fast delivery for shutdown jobs

• Custom drilling patterns available

• Export experience – GCC, Africa, Europe, Asia

• Complete documentation support

1️⃣4️⃣ SEO Keywords

• Slip on flange manufacturer India

• SO flange supplier

• ASME B16.5 slip on flange

• Carbon steel slip on flange price

• Stainless steel SO flange stockist

• Duplex slip on flange manufacturer

• Forged flange supplier Mumbai

• Industrial flange exporter India

1️⃣5️⃣ Call-to-Action

📞 VikTech Fittings
📱 WhatsApp: +91 7678070276
📧 Email: viktechfittings@gmail.com
🌐 Website: www.viktech.co.in

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