BUFFER TANKS

CHILLED & HOT WATER BUFFER TANKS

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. 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. 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.

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.

Factory insulation is also offered at reasonable cost. Hanson Tank Buffer Tank Sizes: Add 4" for supports. (Please enquire for other sizes and connections) All sizes of Chilled Water Buffer Tanks are built to order in 3 to 4 weeks

STANDARD CHILLED WATER TANKS

GALLS	SIZE	CONNECTIONS FLANGES	DRAWING
80	20" X 64"	2" FNPT connection	YMT-226-BT
120	24" X 64"	3" flanges	YMT-616-BT
200	30" X 72"	3" FNPT connection	YMT-264-BT
250	30" X 89"	4" 150# flange	YMT-634-BT
300	36" X 76"	3" FNPT connection	YMT-924-BT
400	36" X 99"	3" FNPT connection	YMT-556-BT
400	36" X 99"	4" 150# flanges	YMT-932-BT
520	42" X 96"	6" 150# flanges	YMT-468-BT
650	42" X 120"	6" 150# flanges	-
800	48" X 112"	6" 150# flanges	YMT-199-BT
1000	48" X 140"	6" 150# flanges	YMT-185-BT
1200	54" X 134"	6" 150# flanges	-

CUSTOM VERTICAL CHILLED & HOT WATER TANKS

30 to 400 Gallon Sizes (built to customers' design)

400 to 2000 Gallon Sizes

GALLS SIZE( Dia x Lgth) PRESSURE psig WT# DRAWING / PART# 30 18" x 31" 150 101 YMT-258-BT 100 24" x 57" 150 351 YMT-739-BT 120 24" x 64" 150 326 YMT-182-BT 120 24" x 64" 150 350 YMT-632-BT 120 24" x 64" 150 400 YMT-695-BT 120 24" x 64" 150 400 YMT-859-BT 120 24" x 67" 150 381 YMT-626-BT 130 30" x 49" 150 327 YMT-653-BT 155 30" x 57" 50 423 YMT-297-BT 160 30" x 59" 150 470 YMT-627-BT 160 30" x 59" 150 462 YMT-628-BT 189 30" x 69" 150 525 YMT-872-BT 200 30" x 72" 125 534 YMT-082-BT 200 30" x 72" 125 523 YMT-244-BT 200 30" x 72" 150 438 YMT-786-BT 240 30" x 84" 125 610 YMT-121-BT 243 30" x 86" 150 529 YMT-587-BT 250 36" x 64" 125 566 YMT-712-BT 250 36" x 64" 125 542 YMT-919-BT 260 30" x 90" 150 541 YMT-975-BT 300 36" x 76" 150 686 YMT-147-BT 300 36" x 76" 150 667 YMT-671-BT 305 36" x 75" 125 615 YMT-833-BT 306 36" x 77" 125 709 YMT-818-BT 340 42" x 61" 125 703 YMT-651-BT 350 36" x 85" 150 738 YMT-302-BT 350 36" x 85" 150 738 YMT-778-BT

CUSTOM VERTICAL CHILLED WATER TANKS

400 to 2000 Gallon Sizes (built to customers' design)

30 to 400 Gallon Sizes

GALLS	SIZE( Dia x Lgth)	PRESSURE psig	WT#	DRAWING / PART#
400	48" x 60"	150	1107	YMT-580-BT
400	36" x 99"	125	889	YMT-585-BT
400	36" x 99"	150	889	YMT-585-BT
400	36" x 99"	125	946	YMT-590-BT
405	42" x 76"	125	997	YMT-313-BT
420	42" x 79"	125	814	YMT-887-BT
500	42" x 92"	150	1142	YMT-641-BT
500	36" x 119"	125	1013	YMT-888-BT
500	42" x 94"	125	1054	YMT-455-BT
500	48" x 73"	125	1133	YMT-644-BT
500	42" x 92"	150	1222	YMT-624-BT
500	42" x 92"	150	1208	YMT-631-BT
534	42" x 96"	125	1179	YMT-978-BT
534	42" x 96"	125	999	YMT-352-BT
800	48" x 112"	160	1847	YMT-756-BT
800	48" x 113"	125	1756	YMT-776-BT
800	48" x 113"	125	1571	YMT-639-BT
1000	54" x 112"	125	2653	YMT-926-BT
1000	60" x 92"	125	2058	YMT-646-BT
1040	60" x 96"	125	2234	YMT-844-BT
1200	60" x 110"	125	2511	YMT-748-BT
1433	48" x 196"	150	3046	YMT-595-BT
1650	64" x 130"	125	2993	YMT-633-BT
1950	72" x 123"	125	3268	YMT-029-BT

CUSTOM HORIZONTAL CHILLED WATER TANKS

(built to customers' design)

GALLS	SIZE( Dia x Lgth)	PRESSURE psig	WT#	DRAWING / PART#
235	30" x 84 1/8"	125	527	YMT-049-B
250	30" x 89"	50	621	YMT-966-B
300	30" x 106"	125	627	YMT-249-B
300	36" x 76"	150	654	YMT-010-B
300	36" x 76"	125	702	YMT-631-B
400	42" x 75"	65	889	YMT-918-B
400	48" x 60"	125	1062	YMT-781-B
500	36" x 119"	125	895	YMT-292-B
1500	64" x 121"	125	2636	YMT-309-B
2092	72" x 133"	125	3933	YMT-707-B
4000	78" x 209"	100	6499	YMT-157-B