Class 1500 bolting and approximate weights 24"" — ASME B16.5
Class 1500 bolting and approximate weights 24"" to ASME B16.5: studs — no. 16, stud length — raised face 615 mm, stud length — ring joint 650 mm, weld neck — kg, approx. 1508 kg, blind — kg, approx. 1648 kg.
Dimensions of Class 1500 bolting and approximate weights 24""
| Symbol | Dimension | Value |
|---|---|---|
| · | Studs — No. | 16 |
| · | Stud dia — in | 3½" in |
| · | Stud length — Raised face | 615 mm (24.213 in) |
| · | Stud length — Ring joint | 650 mm (25.591 in) |
| · | Weld neck — kg, approx. | 1508 kg (3324.57 lb) |
| · | Blind — kg, approx. | 1648 kg (3633.21 lb) |
SKU TSH-FLANGE-ASME-B16-5-24" · Standard ASME B16.5 · teshi-web
Purchase description
CLASS 1500 BOLTING AND APPROXIMATE WEIGHTS, 24"", ASTM A105N, ASME B16.5
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
- Dimensions are in millimetres unless stated otherwise.
- Flange thickness tf and length through hub Y do not include the 7 mm raised face.
- Blind flanges have the same outside diameter, thickness tf and drilling as the other flange types of the same size and class.
- Slip-on and socket weld flanges are not listed in Class 1500 above NPS 2½"; the slip-on column then applies to threaded flanges only.
- The bore of a weld neck or socket weld flange is machined to match the inside diameter of the pipe schedule stated in the order.
- Bolt holes are tabulated in inches in ASME B16.5; the millimetre values shown are direct conversions (bolt diameter plus ⅛").
- Stud bolt lengths do not include the height of the points. Weights are approximate catalogue values and vary with bore and manufacturer.
Other sizes — Class 1500 bolting and approximate weights, Standard
½""¾""1""1¼""1½""2""2½""3""4""5""6""8""10""12""14""16""18""20""
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.