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Flanges Category

Flanges are critical components used to connect pipes, valves, pumps and other equipment in piping systems. Available in materials like carbon steel, alloy steel, and stainless steel, they provide easy access for cleaning, inspection, and modification of piping networks.

Flanges create strong, leak-proof connections that can withstand high pressure and temperature. Their various types and facing options make them suitable for diverse industrial applications, from oil and gas to water treatment and chemical processing.

PIPE FLANGES

Pipe flanges form secure connections between piping components while allowing for disassembly when needed. Whether weld neck, slip-on, or blind type, they are manufactured to precise standards ensuring proper sealing and alignment. Explore our range of Weld Neck Flanges, Slip-On Flanges, and Blind Flanges for detailed specifications.

Key Properties of PIPE FLANGES

  • Material Strength: Available in carbon steel, alloy steel, and stainless steel to suit various pressure and temperature requirements.
  • Connection Types: Offered in multiple configurations (weld neck, slip-on, threaded) for different installation needs.
  • Pressure Rating: Designed to withstand system pressures from 150# to 2500# and higher.
  • Sealing Surface: Various face types (RF, FF, RTJ) ensure proper gasket seating and leak prevention.

Types of Pipe Flanges

Flanges are categorized based on their attachment method, face type, and pressure class to meet specific system requirements.

Type Description Application
Weld Neck Flanges Butt-welded to pipe for high-integrity connections in critical systems. High-pressure/temperature systems, hazardous fluids
Slip-On Flanges Slips over pipe and welded both inside and outside for easy alignment. Low-pressure systems, cost-effective solutions
Blind Flanges Used to seal ends of piping systems or vessel openings. System isolation, pressure testing, future expansion
Socket Weld Flanges Pipe inserts into socket for compact, high-strength connections. Small-bore, high-pressure systems
Lap Joint Flanges Used with stub ends for systems requiring frequent disassembly. Systems requiring regular maintenance/inspection
Threaded Flanges Internal threads screw onto external pipe threads without welding. Low-pressure systems, explosive areas where welding is unsafe

Applications of PIPE FLANGES

Flanges are essential components across industries for creating secure and maintainable piping connections:

  • Oil and Gas: Connect pipelines, valves, and equipment in upstream, midstream, and downstream operations.
  • Chemical Processing: Join piping systems handling corrosive and high-purity materials.
  • Power Generation: Connect high-pressure steam lines and cooling water systems in power plants.
  • Water Treatment: Provide access points in water distribution and wastewater systems.

Specifications

Properties Values
Material Carbon Steel (A105), Alloy Steel (F11, F22), Stainless Steel (304, 316, 316L)
Size Range 1/2" to 60" (varies by type)
Pressure Class 150#, 300#, 600#, 900#, 1500#, 2500#
Face Types Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ)
Standards ASME B16.5, ASME B16.47, API 6A, AWWA, DIN
Surface Finish Black, Galvanized, Anti-corrosion Coated, Polished (for SS)

Considerations for Use

  • Pressure-Temperature Rating: Select flanges rated for the maximum system pressure and temperature.
  • Material Compatibility: Ensure flange material matches pipe material and is compatible with the fluid.
  • Gasket Selection: Choose appropriate gasket material and type based on flange face and service conditions.
  • Bolt Tightening: Follow proper bolt tightening sequences and torque values to ensure even gasket compression.