Flexible Metallic Conduit (FMC)
Applications: Specifically for dry, indoor, non-corrosive environments where flexibility is required to navigate complex paths, tight spaces, or connect stationary equipment.
Liquid-Tight Flexible Metallic Conduit (LFMC)
Applications: Designed for harsh environments, including wet, oily, corrosive, and outdoor locations where sealed protection from fluids and weather is essential. Ideal for connections subject to vibration or movement.
Explosionproof couplings are used: In hazardous areas where a flexible member is required in a conduit system to accomplish difficult bends, or to allow for movement or vibration of connected equipment or units.
Cl. I, Div. 1 & 2, Groups A, B, C, D; Cl. II, Div. 1, Groups E, F, G; Cl. II, Div. 2, Groups F, G; Cl. III.