
WRS Hose & Fittings of Houston | Hoses
Rotary hose (also known as a Mud Hose or Kelly Hose) is a flexible, steel reinforced, high pressure hose that connects the standpipe to the kelly (or more specifically to the goose-neck on the swivel above the kelly) and allows free vertical movement of the kelly while facilitating the flow of drilling fluid through the system and down the drill string.