Balancing valve

A balancing valve sets and stabilizes flow distribution between branches so each circuit receives its design share. A manual type is adjusted and limited to a calculated position; some designs also provide measuring points or additional control functions, but these are not universal. Its primary duty differs from simple isolation and from a process control valve responding continuously to an external signal. Selection should consider design flow, available pressure drop, commissioning and measurement method, presetting capability, and whether isolation is also required.