RIGID COUPLINGS-STEEL
Material: Steel
Finishes: Hot Dip Galvanized
Features:
- The rigid conduit coupling is used to connect the electrical steel conduits together, thus extending the length of the conduit pipe.
- The rigid conduit coupling is manufactured from seamless steel pipes.Its trade size can be from 1/2” to 6”. We can make the rigid conduit coupling electro-galvanized at internal thread and external surface.
Category Fittings & Connectors
RIGID COUPLINGS-STEEL Description
| Catalog No. | Trade Size | Outside Diameter¹ | Min Length | |
| Inch | mm | Inch | mm | |
| RK50 | 1/2" | 1.01 | 25.7 | 41.3 |
| RK75 | 3/4" | 1.25 | 31.8 | 41.7 |
| RK100 | 1" | 1.53 | 38.7 | 50 |
| RK125 | 1-1/4" | 1.87 | 47.5 | 51.6 |
| RK150 | 1-1/2" | 2.16 | 54.7 | 52.4 |
| RK200 | 2" | 2.65 | 67.3 | 54 |
| RK250 | 2-1/2" | 3.25 | 82.6 | 81 |
| RK300 | 3" | 3.87 | 98.3 | 84.1 |
| RK350 | 3-1/2" | 4.5 | 114.3 | 86.5 |
| RK400 | 4" | 4.88 | 123.8 | 89.3 |
| RK500 | 5" | 6 | 152.4 | 100 |
| RK600 | 6" | 7.2 | 182.9 | 108 |




