Enhance your hot water system’s performance. Typical hot water systems operate well below design loads. By storing excess energy for later use, Hubbell ASME buffer tanks prevent short cycling of a boiler or chiller. Hubbell chilled/hot water buffer tanks optimize system efficiency and promote longevity. Offered in 2 and 4 pipe tank configurations, with a range of connection sizes. Designed and constructed per ASME Section VIII, Division 1. Registered with the National Board of Pressure Vessel Manufacturers.