Heat Exchanger and Thermal System Design & Manufacturing
Products
Thermal Energy Storage Tank (Hot Water TES Tank)
  • Thermal Energy Storage Tank (Hot Water TES Tank)
  • Thermal Energy Storage Tank (Hot Water TES Tank)
Request a Quote Hot Water Tank Brochure

Thermal Energy Storage Tank (Hot Water TES Tank)

Hot water storage tanks are designed for high-standard hot water applications that require stable temperature control and reliable thermal storage capacity. The tanks are commonly used in district heating systems, central hot water systems, boiler systems, heat pump systems, solar heating systems, and waste heat recovery systems. The system stores thermal energy through large-volume hot water storage and provides a stable heat supply during periods of fluctuating demand.

The hot water TES tank operates based on the natural density difference between water at different temperatures. During the storage process, a specially designed diffuser at the tank inlet distributes water smoothly through the tank to maintain stable flow conditions. The temperature difference between hot and cold water creates natural thermal stratification inside the tank, with warmer water remaining in the upper section and cooler water settling in the lower section. A clear thermocline layer forms between the two temperature zones and reduces unwanted mixing. When hot water demand occurs, the system draws water from the required temperature zone within the tank. The stable stratification structure maintains consistent outlet temperature and improves the efficiency of thermal storage operation.

Request a Quote Hot Water Tank Brochure
Features
  • Hygienic Hot Water Storage Design: Suitable for drinking water applications without the need for sacrificial anodes or anti-vacuum valves.
  • Advanced Welding Technology: High-quality flux-cored wire welding and plasma arc welding technologies are used for tank fabrication.
  • Certified Manufacturing Standards: Designed according to BS PD5500, DIN4753, and ISO 3834 standards.
  • Convenient Maintenance Design: Standardized maintenance openings and drain outlets are arranged according to installation requirements. The access opening size is designed for convenient internal inspection and cleaning, including use in compact equipment rooms.
  • Temperature Monitoring and BMS Integration: Multiple temperature sensor ports can be installed at different tank heights. The system can connect with building management systems (BMS) to monitor water temperature stratification and coordinate heat source equipment such as boilers and heat pumps.
Customization Range
  • Insulation Options: 50 mm soft polyurethane foam or fiberglass insulation with density of 32 kg/m³, or customized insulation options
  • Pressure Rating: Up to 25 bar
  • Storage Capacity: 100 liters to 15,000 liters
  • Tank Material: 100% austenitic stainless steel 304, 316, 316L, or 316Ti
Specifications
  • Vertical TES TankVertical TES Tank
  • Horizontal TES TankHorizontal TES Tank
  • Manhole
  • Temperature sensor port
  • Drain port
  • Cold feed
  • Secondary return (recirculation)
  • Hot water outlet (hot draw)
  • Pressure gauge
  • Temperature gauge
  • Safety valve
  • Vent
  • Spare connection
Model Capacity Diameter Width Height Weight Connection Size
D W₁ W₂ H₁ H₂ 10Bar 16Bar Water inlet Water outlet Return
L mm mm mm kg Connector/Flange (mm)
IET 200 500 620 1210 1330 840 50 80 32 32 25
500 650 770 1720 1850 990 80 120 40 40 25
750 750 870 1920 2040 1090 130 160 50 50 25
800 800 920 1820 1940 1140 145 200 50 50 25
1000 900 1020 1820 1935 1240 195 280 50 50 25
1500 1000 1120 2170 2290 1340 280 370 50 50 25
2000 1100 1220 2380 2500 1440 390 480 50 50 32
2500 1300 1420 2190 2310 1640 480 630 50 50 32
3000 1300 1420 2560 2680 1640 580 820 50 50 32
4000 1300 1420 3320 3440 1640 800 1150 65 65 32
5000 1500 1620 3160 3280 1840 1050 1450 65 65 32
6000 1600 1720 3330 3450 1940 1320 1880 80 80 50
7000 1600 1720 3820 3940 1940 1650 2160 100 100 50
8000 1800 1920 3510 3630 2140 1820 2380 100 100 50
9000 1800 1920 3910 4030 2140 1910 2650 100 100 50
10000 2000 2120 3580 3700 2340 1980 2930 100 100 50