Honeywell TAXV Series Catalog Page

Commercial Expansion Tanks

Expansion Tank Sizing based on BTU’s

Boiler Type of Radiation

Net Output in 1000’s of

BTU/Hr

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 Tank- Commercial Usage

Finned Tube Baseboard

or Radiant Panel

Convectors or

Unit Heaters Radiators Cast Iron Baseboard Cast Iron

TAX Series (commercial) Expansion Tanks are designed to absorb
hot water expansion in closed heating systems. TAX tanks are
used in large installations. They are equipped with butyl
diaphragms to separate the air from the system water (glycol). The
tanks are a welded, not clamped, design. Pre-pressurized at 12 psi,
the tank keeps fluids circulating and maintains minimum system
pressure. Honeywell tanks resist waterlogging, loss of pressure
through relief valve spills, and loss of BTUs.

• ASME construction: Horizontal TAX Series tanks.

Maximum Operating Temperature: 240 F (115 C)
Maximum Operating Pressure: 125 psi (862 kPa)
Precharge: 12 psi
Materials: steel shell, heavy duty butyl diaphragm
Comments: ASME Construction

Maximum

Product Number

TAXV-015/U 1/2 in. 12 in. 304.8 mm 19 1/4 in. 489 mm 7.8 gal 29.6 L 2.5 gal 9.5 L 48 lb 21.8 kg

TAXV-020/U 1/2 in. 12 in. 304.8 mm 26 in. 660 mm 10.9 gal 40.2 L 2.5 gal 9.5 L 61 lb 27.7 kg

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 11.3 gal 42.8 L 116 b 52.7 kg

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 11.3 gal 42.8 L 145 b 65.9 kg

TAXV-080/U 1/2 in. 16 1/4 in. 412.7 mm 56 in. 1422 mm 44.4 gal 168.3 L 22.6 gal 85.6 L 70 lb 89.1 kg

TAXV-100/U 1/2 in. 16 1/4 in. 412.7 mm 68 1/4 in. 1734 mm 55.7 gal 211 L 22.6 gal 85.6 L 231 b 105 kg

TAXV-120/U 1 in. 24 in. 609.6 mm 44 1/4 in. 1124 mm 68 gal 257.7 L 34 gal 128.9 L 233 b 105.9 kg

TAXV-144/U 1 in. 24 in. 609.6 mm 49 1/8 in. 1247.8 mm 77.0 gal 291.8 L 34 gal 128.9 L 256 b 116.4 kg

TAXV-180/U 1 in. 24 in. 609.6 mm 56 1/2 in. 1435 mm 90 gal 341.1 L 34 gal 128.9 L 286 b 130 kg

TAXV-200/U 1 in. 24 in. 609.6 mm 63 in. 1600 mm 110 gal 416.9 L 34 gal 128.9 L 326 b 148.2 kg

TAXV-240/U 1 in. 30 in. 762 mm 49 1/8 in. 1368.4 mm 132.0 gal 500.3 L 46 gal 174.3 L 456 b 207.3 kg

TAXV-260/U 1 in. 30 in. 762 mm 49 1/8 in. 1247.8 mm 158.0 gal 500.3 L 56 gal 174.3 L 435 b 207.3 kg

TAXV-280/U 1 in. 30 in. 762 mm 49 1/8 in. 1247.8 mm 211.0 gal 500.3 L 84 gal 174.3 L 435 b 207.3 kg

244 customer.honeywell.com 70-6910

Connection
Size (inch)

Diameter Height Volume

inch mm inch mm gal L gal L lb kg

Acceptance
Volume Weight