ASME Hot Water Buffer Tanks

HORIZONTAL AND VERTICAL HOT BUFFER TANKS

View Specs and Drawings of in Stock and Custom Tanks

Standard in Stock and Custom Hot Water Buffer Tanks

  • A hot water buffer or volume tank improves system efficiency by adding extra thermal mass to the boiler water loop that circulates through a heat exchanger bundle.
  • It is sized by using the boiler’s performance capabilities with the desired firing time and maximum temperature drop chosen by its specifier to reduce boiler ignition cycles to four or less per hour.
  • They are necessary with today’s smaller, high efficiency low mass boilers and also function as an air eliminator.
  • As temperature stratification is not a major concern, they are usually built without internal baffles.
  • Please email or call us if you need assistance in sizing a hot water buffer tank.
  • Material Pricing Subject To Change Based On Market Volatility
    Resulting From Implementation Of Section 232 Tariffs And Availability
wdt_ID GALLONS SIZE CONNECTIONS FLANGES PRICE
1 120 24" X 64" 2" FNPT connection
2 200 30" X 72" 3" FNPT connection
3 235 30" X 84" 3" FNPT connection
4 300 36" X 76" 3" FNPT connection
5 400 36" X 99" 3" FNPT connection
6 520 42" X 92" 6" 150# flanges
7 650 42" X 120" 6" 150# flanges

Vertical Hot Water Buffer Tanks

Horizontal Hot Water Buffer Tanks

GALLS SIZE Dia x Lgth PRESSURE psig WT# DRAWING / PART# NET PRICE CURRENTLY IN STOCK*
40 16" x 50" 150 120 8
60 20" x 49" 150 160 In Production

Standard Chilled Water Tanks

  • Factory insulation is also offered at reasonable cost.
  • Hanson Tank Buffer Tank Sizes: Add 4″ for supports. (Please enquire for other sizes and connections)
  • The ¾” top connection is for an air vent valve, for example a Honeywell Braukmann #EA79A1004.
  • All sizes of Chilled Water Buffer Tanks are built to order in 4 weeks.

Custom Vertical Chilled Water Buffer Tanks

  • These tanks increase the capacity of a closed loop chilled water system and stabilize the return water temperature.
  • This results in fewer cycles of the compressor and better temperature control overall.
  • Chiller manufacturers recommend between three and ten gallons of total capacity in the system per nominal ton, depending on the accuracy of temperature control required.

Custom Horizontal Chilled Water Buffer Tanks

  • The size of tank is determined by deducting the capacity of the basic system from the desired capacity.
  • For example, a 80 ton system with 200 gallons in it would need a 600 gallon buffer tank for optimum (ten gallons per ton) efficiency.
  • Most chiller manufacturers recommend five gallons per nominal ton for a typical air conditioning system. In the above example, this would result in a 200 gallon buffer tank.