PIPE FLANGE
Product Range
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Size Range: 1/2 "– 60 " NPS
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Pressure Classes: ASME/ANSI Class 150, 300, 600, 900, 1500, 2500
Materials
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Stainless Steel(A182) : 304 / 304L / 304H / 310H / 316 / 316L / 316H / 317 / 317L / 321 / 321H / 347 / 347H / 348 / 348H
Standards(ASME/ANSI B16.5, B16.47 & B16.36)
ASME/ANSI B16.5, B16.47, and B16.36 define the dimensional, material, and pressure–temperature requirements for pipe flanges, flanged fittings, and orifice flanges used in industrial piping systems, covering pressure ratings, dimensions, tolerances, marking, inspection, and testing.
ASME/ANSI B16.5 applies to pipe flanges and flanged fittings in pressure classes 150–2500, with nominal pipe sizes from NPS 1/2 to NPS 24, typically manufactured from forged or cast materials.
For larger sizes, typically NPS 26 to NPS 60, pipe flanges and flanged fittings are commonly supplied in accordance with ASME/ANSI B16.47 for pipeline, power, and high-capacity process applications.
ASME/ANSI B16.36 applies specifically to orifice flanges, defining requirements to support accurate differential pressure flow measurement and integration with instrumentation systems.
Flange Type
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Weld Neck Flanges
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Designed for high-pressure and high-temperature applications, providing excellent strength and fatigue resistance.
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Slip-On Flanges
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Easy to install and cost-effective, commonly used in low-to-moderate pressure applications.
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Lap Joint Flanges
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Used with stub ends to allow easy alignment and dismantling, suitable for systems requiring frequent maintenance.
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Threaded (Screwed) Flanges
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Installed without welding, typically used for low-pressure or non-critical service.
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Socket Weld Flanges
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Suitable for small-diameter, high-pressure piping, offering strong weld joints and smooth bore alignment.
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Blind Flanges
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Used to close or isolate piping systems, allowing for future expansion or inspection access.
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Available in various sizes, pressure classes, and materials in accordance with applicable ASME/ANSI standards.