Power plant; Heating,ventilation and air conditioning; Industrial plant; Water treatment; Plumbing; Fire protection; Mining and mine processing; Oil field; Marine. This kind of coupling is designed for the pipe bearing moderate pressure. It allows controlled angle, linear and rotational movement at each joint and provides the added advantages of expansion, contraction and deflection. This is usful to accommodate uneven laying surfaces, and movement from thermal changes, setting, seismic effect or other causes. Flexible coupling can be used in fire protection system, feed water, gas system and etc.

