FER 501
Expansion joints installed in piping systems must be anchored on both sides of the joints to avoid the use of control rods. If control rods are installed as a safety measure, the locking nuts must be backed off with a clearance equal to the specified axial movement. The expansion joint will exert thrust on the anchors. To calculate thrust, use the following equation:
Thrust = (Thrust Area Large End ID) x (Rated Working Pressure)
EXAMPLE— For a 12” x 10” FCR/FER500, the Thrust Area 133 in2 multiplied by the Rated Working Pressure 140 psi equals the Thrust 18,620 lbs.
133 x 140 = 18,620 lbs.
| FCR 501 |
Tube | Cover | Max Oper. Temp. |
| B | Butyl | Butyl | 250°F |
| E | EPDM | EPDM | 250°F |
| H | Hypalon | Hypalon | 225°F |
| HN | Hypalon | Neoprene | 225°F |
| N | Neoprene | Neoprene | 225°F |
| NH | Neoprene | Hypalon | 225°F |
| Ni | Nitrile | Nitrile | 210°F |
| NiN | Nitrile | Neoprene | 210°F |
| NR | Neoprene | Natural | 225°F |
| R | Natural | Natural | 180°F |
| RN | Natural | Neoprene | 180°F |
| V | Viton® | Viton® | 250°F |
