Approved Import Threaded Flanges

Buy Approved Import Threaded Flanges for Industrial Piping Systems

Approved import threaded flanges are used in industrial piping systems where connections need to be made without welding. These flanges feature internal threads that match the pipe’s external thread, allowing installers to create a mechanical joint that is easy to assemble and remove during maintenance. Threaded flanges are commonly used in low-pressure pipe runs, small-diameter utility lines, fuel handling systems and areas where welding is restricted due to safety or environmental conditions.

Design Characteristics for Non-Welded Connections

Industrial threaded flanges follow ASME dimensional standards, helping them integrate with standard pipe schedules used across the United States. The threaded design supports quick installation and allows equipment to be connected or removed without disturbing nearby components.

Approved import threaded flanges are typically used with Schedule 80 or thicker wall pipe, since the thread depth requires additional material to maintain joint strength. These flanges are often selected for steam service, compressed air, water lines and utility piping where welding access is limited.

Material options include carbon steel for general industrial service and stainless steel for corrosive media or outdoor exposure. Each option helps maintain a reliable sealing surface when paired with the proper gasket and bolting pattern.

Operational Applications in Industrial Systems

Threaded flanges are commonly used in:

• Small-diameter pipelines
• Areas where welding is not permitted
• Pump connections, test lines and utility loops
• Temporary or adjustable piping segments
  

They are often preferred in installations where mobility or frequent disassembly is required. Their mechanical joint design supports connection points that need periodic access without cutting the pipe.

System Compatibility and Related Options

Industrial projects using threaded flanges may also rely on other flange types for matching system requirements. Installers often explore Approved Import Slip-On Flanges for welded connections or Blind Flanges for line termination and pressure checks. Using components from related categories helps maintain consistency across the overall piping layout.

Approved Import Threaded Flanges at Trupply

This collection includes threaded flange options suitable for fabrication shops, industrial contractors, equipment assemblers and maintenance teams. Multiple sizes and material grades are available to match the demands of pipeline projects while staying aligned with standard ASME practices used in industrial environments.

Sizes

Size & Dimension table for Flanges

Materials

A105 - The standard forged carbon steel piping components for ambient and high temperature / pressure systems

SS304 - A common standard for stainless steel due to its malleability, high corrosive resistance weld-ability  

SS316 - A molybdenum stainless steel that provides excellent tensile, creep and stress-rupture strengths at elevated temperatures

Material Description for Flanges

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