Vertical Chilled Water Buffer Tanks

ASME CUSTOM BUFFER TANKS

View Specs and Drawings of CBT Built to Customers’ Design

CUSTOM VERTICAL CHILLED WATER TANKS
30 to 400 Gallon Sizes
(built to customers’ design)

  • These tanks increase the capacity of a chilled water system and stabilize the return water temperature. This results in fewer cycles of the compressor and better temperature control overall.
  • Properly-sized chillers keep chiller compressors from short cycling. Without the proper amount of system water, however, the temperature will rise and cause the compressor to shut off. If the compressor is off for too long, it cannot meet the demand for chilled water, which negatively affects your water system’s operations.
  • A chilled water buffer tank is ideal for chillers with insufficient water volumes. It adds volume to help your water system buffer, preventing erratic system operations.

CUSTOM VERTICAL CHILLED WATER TANKS
400 to 2000 Gallon Sizes
(built to customers’ design)

  • HANSON TANK manufactures two styles of 125# ASME chilled water tanks. Both vertical, they have either a vertical internal baffle with connections on the sides of the tank, or a dip tube on one of two connections on the top head. Please refer to the attached drawings for details. Chilled water tank standard connections are from 2″ to 3″ FNPT and 4″ to 8″ 150# Flanges. Grooved pipe stubs are available for all sizes instead. Tanks 42″ diameter and above have a 12″ x 16″ elliptical manway installed in the shell.
  • R-16 foam insulation is also offered at reasonable price.
  • The Chilled Water Buffer Tanks are built to order in 4 weeks.

Material Pricing Subject To Change Based On Market Volatility
Resulting From Implementation Of Section 232 Tariffs And Availability

GALLS SIZE Dia x Lgth PRESSURE psig WT# DRAWING / PART# INQUIRE PRICE
30 18" x 31" 150 101
80 20" x 63" 150 205
100 24" x 57" 150 290
120 24" x 64" 150 318
120 24" x 64" 150 368
120 24" x 64" 150 312
120 24" x 67" 150 381
120 24" x 64" 150 326
130 30" x 49" 150 327
155 30" x 57" 155 423
160 30" x 59" 125 456
160 30" x 59" 150 470
160 30" x 59" 150 462
189 30" x 69" 150 525
200 30" x 72" 125 534
200 30" x 72" 125 523
200 30" x 72" 150 458
240 30" x 84" 125 610
243 30" x 86" 150 529
250 36" x 64" 125 566
250 36" x 64" 125 542
250 30" x 89" 150 633
250 30" x 89" 150 563
250 30" x 89" 150 585
260 30" x 90" 150 541
300 36" x 76" 150 667
300 36" x 76" 150 686
300 36" x 76" 150 672
305 36" x 75" 125 615
350 36" x 85" 150 738
350 36" x 85" 150 738
400 36" x 99" 150 843
400 36" x 99" 150 972
400 48" x 60" 150 1.107
420 42" x 79" 125 1.021
500 42" x 92" 150 1.142
500 36" x 119" 125 1.013
500 42" x 94" 125 1.054
500 48" x 73" 125 1.067
500 48" x 73" 150 1.482
500 42" x 92" 150 1.222
534 42" x 96" 125 999
534 42" x 96" 125 1.179
600 48" x 86" 125 1.360
800 48" x 112" 160 1.815
800 48" x 113" 125 1.840
800 48" x 113" 125 1.654
910 56" x 95" 125 1.790
1000 54" x 112" 125 1.980
1000 60" x 92" 125 2.072
1000 60" x 92" 125 2.108
1200 60" x 110" 125 2.518
1200 60" x 111" 125 2.612
1200 66" x 94" 125 2.322
1433 48" x 196" 150 3.046
1650 64" x 130" 125 3.088
1950 72" x 123" 125 3.272

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 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.

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.
  • 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.