Valve face-to-face, flanged RF 22" Class 300 — ASME B16.10
Valve face-to-face, flanged RF 22" Class 300 to ASME B16.10: gate (solid wedge) 1092 mm, swing check 1118 mm, ball — long pattern 1092 mm.
Dimensions of Valve face-to-face, flanged RF 22" Class 300
| Symbol | Dimension | Value |
|---|---|---|
| L | Gate (solid wedge) | 1092 mm (42.992 in) |
| L | Swing check | 1118 mm (44.016 in) |
| L | Ball — long pattern | 1092 mm (42.992 in) |
SKU TSH-VALVE-ASME-B16-10-CLASS-300-22 · Standard ASME B16.10
Purchase description
VALVE FACE-TO-FACE, FLANGED RF, 22", CLASS 300, WCB / A105, ASME B16.10
Available materials: WCB / A105, CF8M / F316, LCB / LF2, WC6 / F11.
Other sizes — Valve face-to-face, flanged RF, Class 300
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.