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BS EN 1759-1 Class 300 Flange Dimensions

Browse Class 300 steel flange types and their dimensional pages. Request confirmed dimensions and drawings for your selected flange type and nominal size.

½"–24" Nominal Size Range · varies by type
7 Flange Types
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Generic hubbed flange front and section illustration with symbolic callouts; not a dimensioned class-specific drawing, bolt count varies with size
BS EN 1759-1 Class 300

Browse EN 1759-1 Flanges by Class 300

Select a Class 300 flange type to view its existing dimensional page and connection details.

BS EN 1759-1:2004, Table 2 and Figure 9 / Table 10: 7 applicable types. Types 05, 11, 12, 15 and 21: NPS ½–24; Type 13: NPS ½–6; Type 14: NPS ½–3. Hero illustration is generic; actual bolt count varies with size. Existing tables await verified values and suitable type drawings. Catalogue and datasheet links remain placeholders.

TYPE 05Verified Class 300 drawing
awaiting source

Type 05 Blank Flange

BS EN 1759-1 · Class 300

Find blank flange outside diameter, thickness, bolt circle, bolt-hole arrangement and facing dimensions.
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TYPE 11Verified Class 300 drawing
awaiting source

Type 11 Weld Neck Flange

BS EN 1759-1 · Class 300

Review weld neck flange dimensions, including flange thickness, bore, neck geometry, bolt circle and facing details.
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TYPE 12Verified Class 300 drawing
awaiting source

Type 12 Hubbed Slip-On Flange for Welding

BS EN 1759-1 · Class 300

Explore hubbed slip-on flange dimensions, bore, hub geometry, thickness, bolt circle and facing details.
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TYPE 13Verified Class 300 drawing
awaiting source

Type 13 Hubbed Threaded Flange

BS EN 1759-1 · Class 300

Review hubbed threaded flange dimensions, bore and thread details, hub geometry, bolt circle and facing specifications. Source coverage: NPS ½–6.
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TYPE 14Verified Class 300 drawing
awaiting source

Type 14 Hubbed Socket Weld Flange

BS EN 1759-1 · Class 300

Explore socket weld flange dimensions, including bore, socket details, hub geometry, flange thickness and bolting. Source coverage: NPS ½–3.
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TYPE 15Verified Class 300 drawing
awaiting source

Type 15 Loose Hubbed Flange for Lapped Pipe End

BS EN 1759-1 · Class 300

Review loose hubbed flange dimensions, bore, hub geometry, bolt circle and connection details for lapped pipe ends.
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TYPE 21Verified Class 300 drawing
awaiting source

Type 21 Integral Flange

BS EN 1759-1 · Class 300

Explore integral flange dimensions, including outside diameter, bore, thickness, bolt circle and facing details.
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