Every line held to a named
standard and a named mill.
Slip-on flange
Slides over the pipe and is fillet welded inside and out. Easier alignment and lower cost than weld neck for moderate-pressure service.
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Standard
ASME B16.5, B16.47 Series A & B, AWWA, DIN
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Class
#150, #300, #400, #600
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Size
1/2" – 45", larger on request
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Material
Carbon steel, forged steel, stainless steel
Weld neck flange
Long tapered hub butt welded to the pipe, transferring stress into the line. The standard choice for high-pressure and cyclic service.
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Standard
ASME B16.5, B16.47 Series A & B
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Class
#150, #300, #400, #600
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Size
1/2" – 45", larger on request
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Bore
Derived from the pipe schedule
Blind flange
Solid disc used to close off a line, vessel opening or valve. Takes the highest stress of the flange types at a given rating.
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Standard
ASME B16.5, B16.47 Series A & B, AWWA, DIN
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Class
#150, #300, #400, #600
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Size
1/2" – 45"
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Material
Carbon steel, forged steel, stainless steel
Socket weld flange
Pipe is set into a machined recess and fillet welded externally. Suited to small-bore, high-pressure lines.
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Standard
ASME B16.5
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Class
#150, #300, #400, #600
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Size
1/2" – 4" typical
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Material
Forged carbon and stainless steel
Threaded flange
Screwed onto threaded pipe with no welding, for low-pressure service and locations where hot work is not permitted.
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Standard
ASME B16.5, BS 10, DIN
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Class
#150, #300
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Size
1/2" – 6" typical
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Material
Carbon steel, forged steel, stainless steel
The rest of the range.
Send us your flanges requirement.
Send a bill of quantities, a drawing or a line list. We confirm grade, schedule and standard before pricing, and state the lead time in writing.