Table F Flange Dimensions 350 — AS 2129
Table F Flange Dimensions 350 to AS 2129: size — · in 14, d — flange od · mm 550 mm, c — steel · mm 32 mm, c — cast iron · mm 35 mm, c — ductile iron · mm 35 mm.
Dimensions of Table F Flange Dimensions 350
| Symbol | Dimension | Value |
|---|---|---|
| · | Size — · in | 14 |
| · | D — Flange OD · mm | 550 mm (21.654 in) |
| · | C — Steel · mm | 32 mm (1.260 in) |
| · | C — Cast iron · mm | 35 mm (1.378 in) |
| · | C — Ductile iron · mm | 35 mm (1.378 in) |
| · | C — Copper alloy · mm | 32 mm (1.260 in) |
| · | K — Bolt circle · mm | 495 mm (19.488 in) |
| · | n — Bolts | 16 |
| · | L — Hole dia · mm | 30 mm (1.181 in) |
| · | Bolt — Size | M27 |
SKU TSH-FLANGE-AS-2129-350 · Standard AS 2129 · teshi-web
Purchase description
TABLE F FLANGE DIMENSIONS, 350, ASTM A105N, AS 2129
Available materials: ASTM A105N, ASTM A350 LF2 Cl 1, ASTM A182 F304/304L, ASTM A182 F316/316L, ASTM A182 F11 Cl 2, ASTM A182 F22 Cl 3, ASTM A182 F51 (Duplex), ASTM A182 F53 (Super Duplex), ASTM A694 F52 / F60, IS 2062 E250 (plate).
Notes
- All dimensions are in millimetres.
- AS 2129 Tables D, E, F and H keep the inch-based drilling of the old BS 10 tables, converted to millimetres, so they generally mate with BS 10 flanges of the same table.
- Values are nominal, compiled from published copies of the standard; blank cells (—) are values not confirmed from the sources available. Verify against the current edition before design, purchase or fabrication.
Other sizes — Table F Flange Dimensions, Standard
Frequently asked questions
What are the main types of pipe flanges?
Weld neck (WN), slip-on (SO), blind (BL), socket weld (SW), threaded (THD), lap joint (LJ) and plate flanges. Special types include orifice, long weld neck, reducing flanges and spectacle blinds.
When should I use a weld neck flange instead of a slip-on?
Use weld neck flanges for high pressure, high or cycling temperature, and lines with vibration or fatigue loading. The tapered hub and full-penetration butt weld spread stress smoothly. Slip-on flanges are cheaper and easier to align, but their fatigue life is roughly one third of a WN.
What does Class 150, 300 or 600 mean on a flange?
The ASME class is a pressure-rating designation, not a pressure in psi. The allowable pressure depends on the material group and temperature. A Class 150 A105 flange is rated 19.6 bar at 38 °C but 13.8 bar at 200 °C.
Is a 150# flange rated for 150 psi?
No. A Class 150 carbon-steel flange is rated about 285 psi (19.6 bar) at ambient temperature, and about 170 psi (11.7 bar) at 260 °C. The "150" is a class number.