Brochure

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Expansion Tank Sizing based on BTU’s
Boiler Type of Radiation
Net Output in 1000’s of BTU/Hr Finned Tube Baseboard or
Radiant Panel
Convectors or Unit Heaters Radiators Cast Iron Baseboard Cast Iron
MBH Use Model Use Model Use Model Use Model
25 TK300-15 TK300-15 TK300-15 TK300-15
50 TK300-15 TK300-15 TK300-30 TK300-30
75 TK300-30 TK300-30 TK300-30 TK300-60
100 TK300-30 TK300-30 TK300-60 TK300-60
125 TK300-30 TK300-60 TK300-60 TK300-90
150 TK300-30 TK300-60 TK300-90 TK300-90
175 TK300-60 TK300-60 XPS-030V XPS-030V
200 TK300-60 TK300-60 XPS-030V XPS-030V
250 TK300-60 TK300-90 XPS-030V XPS-040V
300 TK300-90 XPS-030V XPS-030V XPS-040V
350 XPS-030V XPS-030V XPS-040V XPS-060V
400 XPS-030V XPS-040V XPS-040V XPS-060V
TAXV Series Expansion Tanks—Commercial Usage
TAX Series (commercial) Expansion Tanks are designed to absorb hot
water expansion in closed heating systems of large installations. TAX
tanks are equipped with butyl diaphragms to separate the air from the
system water (glycol).
• ASME construction: Horizontal TAX Series tanks.
Maximum Safe Operating Pressure (psi): 125 psi
Maximum Safe Operating Pressure (kPa): 862 kPa
Precharge (psi): 12 psi
Materials: Steel shell; Heavy duty Butyl diaphragm
Operating Temperature Range: 240°F Maximum (115°C Maximum)
Comments: ASME Construction
Material Number Connection Size (in.) Diameter Height Volume Weight Maximum Acceptance Volume
TAXV-015/U 1/2 in. 12 in. (304.8 mm) 19 1/4 in. (489 mm) 7.8 gal (29.6 L) 48 lb (21.8 kg) 2.5 gal (9.5 L)
TAXV-020/U 1/2 in. 12 in. (304.8 mm) 26 in. (660 mm) 10.9 gal (40.2 L) 61 lb (27.7 kg) 2.5 gal (9.5 L)
TAXV-040/U 1/2 in. 16 1/4 in.
(412.7 mm)
29 1/2 in. (749 mm) 21.7 gal (82.2 L) 116 lb (52.7 kg) 11.3 gal (42.8 L)
TAXV-060/U 1/2 in. 16 1/4 in.
(412.7 mm)
45 1/8 in.
(1146 mm)
33.6 gal (127.3 L) 145 lb (65.9 kg) 11.3 gal (42.8 L)
TAXV-080/U 1/2 in. 16 1/4 in.
(412.7 mm)
56 in. (1422 mm) 44.4 gal (168.3 L) 70 lb (89.1 kg) 22.6 gal (85.6 L)
TAXV-100/U 1/2 in. 16 1/4 in.
(412.7 mm)
68 1/4 in.
(1734 mm)
55.7 gal (211 L) 231 lb (105 kg) 22.6 gal (85.6 L)
TAXV-120/U 1 in. 24 in. (609.6 mm) 44 1/4 in.
(1124 mm)
68 gal (257.7 L) 233 lb (105.9 kg) 34 gal (128.9 L)
TAXV-144/U 1 in. 24 in. (609.6 mm) 49 1/8 in.
(1247.8 mm)
77.0 gal (291.8 L) 256 lb (116.4 kg) 34 gal (128.9 L)
TAXV-180/U 1 in. 24 in. (609.6 mm) 56 1/2 in.
(1435 mm)
90 gal (341.1 L) 286 lb (130 kg) 34 gal (128.9 L)
TAXV-200/U 1 in. 24 in. (609.6 mm) 63 in. (1600 mm) 110 gal (416.9 L) 326 lb (148.2 kg) 34 gal (128.9 L)
TAXV-240/U 1 in. 30 in. (762 mm) 49 1/8 in.
(1368.4 mm)
132.0 gal (500.3 L) 456 lb (207.3 kg) 46 gal (174.3 L)
TAXV-260/U 1 in. 30 in. (762 mm) 49 1/8 in.
(1247.8 mm)
158.0 gal (500.3 L) 435 lb (207.3 kg) 56 gal (174.3 L)
TAXV-280/U 1 in. 30 in. (762 mm) 49 1/8 in.
(1247.8 mm)
211.0 gal (500.3 L) 435 lb (207.3 kg) 84 gal (174.3 L)
Commercial Expansion Tanks