Holby Valve

Holby Valve is the manufacturer of the Holby Tempering Valve and the HolbyMonitor. All products are built to last and the Holby Valve is made entirely in the USA. Since 1930, Holby Valve has engineered high-performance tempering valves that offer robust functionality and meet the controlled hot water needs of hotels, multi-family residences, commercial facilities and more. The Holby Valve is a master mixing valve listed with ASSE in accordance with their standard, ASSE-1017. Our newest product, the HolbyMonitor, continuously monitors and displays the cold, hot and tempered hot water temperatures and transmits an alert message if any water temperature exceeds custom-selected temperature limits. Valve parts can be purchased through local plumbing supply houses or directly from Holby Valve Inc. To find a dealer, visit us at