Swivel joints for hoses are designed to avoid torque stress when connected to couplings. They are available at:
Male x Female, Male x Male, Female x Female threaded connections, either BSP or NPT.
Aluminum, bronze, Stainless Steel
DN08 (1/4") to DN600(10") with BSP or NPT threaded ends, or flanged connections
SWIVEL JOINTS FOR PIPES
Swivel joints for pipes are designed to withstand high axial stresses at rotational speeds of up to 20 rpm, available from DN08 (1/4 ") to DN600 (24"); in applications to articulate pipes in loading arms, floating suction, drains for floating roofs, skimmers, submerged pipes, industrial machinery as well as applications subjected to high temperatures 450ºC (ovens, solar thermal). They are available at:
Male or female threaded ends, ANSI, DIN or SAE flanged connections, clamp connections, weld ends
SWIVEL JOINTS
SWIVEL JOINTS
FLOATING SUCTIONS 
PIPES SWIVEL JOINTS