F304/ 304L Stainless Steel Forged Flanges RF Type Flange High
Temperature Resistant
Weld Neck Flanges have a long tapered hub and are often used for
high pressure applications. When ordering a weld neck flange, it is
important to specify the schedule pipe is being used for. This is
because the inside diameter of the flange will match the inside
diameter of your pipe. The buttweld joint this flange with the pipe
along with the tapered hub, makes this flange very resistant to
dishing and a very sturdy connection. These flanges are ideal for
extreme fluctuations of temperature and in environments where there
may be a lot of bending and handling of the flanges.
Specification:
1. Stainless Steel: ASTM A 182, A 240
2. Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321,
321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205,
Super Duplex stainless steel UNS S32750
3. Size: ANSI B 16.5 from 1/2″ to 24″ and classes150 to 2500
(complete range)
4. Pressure: ANSI class 150 to 2,500
5. Surface:Raised face (RF)
The scope of European system for stainless steel flanges
| Sealing surface type | Nominal pressure PN / MPa (bar) | | | | | | | |
| 0.25 | 0.6 | 1 | 1.6 | 2.5 | 4 | 6.3 | 5 | 16 | 25 |
| -2.5 | -6 | -10 | -16 | -25 | -40 | -63 | -100 | -160 | -250 |
| Raised face (RF) | DN10-300 | DN10-2000 | DN10-1000 | DN10-600 | DN10-400 | DN10-300 | DN10-250 |
| Convex surface (MFM) | - | DN10-600 | DN10-400 | DN10-300 | - |
| Tongue and groove (TG) | - | DN10-600 | DN10-400 | DN10-300 | - |
| Plane (FF) | DN10-3000 | DN10-2000 | - |
| Ring joint face (RJ) | - | DN15-400 | DN15-300 | DN15-250 |
| | | | | | | | | | |
| The scope of American system for stainless steel flanges | | | | | |
| | | | | | | | | | |
| Sealing surface type | Nominal pressure PN / MPa (Class) | | | | |
| 2 | 5 | 11 | 15 | 26 | 42 | | | | |
| (150LB) | (300LB) | (600LB) | (900LB) | (1500LB) | (2500LB) | | | | |
| Raised face (RF) | DN15-600 | DN15-300 | | | | |
| (1/2 “to 24″) | (1/2 “-12″) | | | | |
| Convex surface (MFM) | - | DN15-600 | DN15-65 | DN15-300 | | | | |
| (1/2 “to 24″) | (1/2 “-2.1 / 2″) | (1/2 “-12″) | | | | |
| Tongue and groove (TG) | - | DN15-600 | DN15-65 | DN15-300 | | | | |
| (1/2 “to 24″) | (1/2 “-2.1 / 2″) | (1/2 “-12″) | | | | |
| Plane (FF) | DN15-600 | - | | | | |
| (1/2 “to 24″) | | | | |
| Ring joint face (RJ) | DN25-600 | DN15-600 | DN15-300 | | | | |
| (1/2 “to 24″) | (1/2 “to 24″) | (1/2 “-12″) | | | | |
Application:
These are mainly used on heat coupling of pipes when there is
possibility of expansion of the section while bending stress on the
coupling.
Oil Field, Offshore, Water System, Shipbuilding, Natural Gas,
Electric Power, Pipe Projects etc.
Package:
The stainless steel flange products are packed according to the
international standards and regulations as well as to customer’s
requests. We would take great care to avoid any damage during
storage or transportation of the stainless steel flanges.
