Expansion Tank

Expansion Tank

In closed heating and cooling systems, it is suitable for use as expansion tank to compensate for the increase and decrease in the volume of the water due to the temperature variation. It is suitable for use as pressure storage and shock damping tank in

In closed heating and cooling systems, it is suitable for use as expansion tank to compensate for the increase and decrease in the volume of the water due to the temperature variation.

It is suitable for use as pressure storage and shock damping tank in booster sets. In this way, by reducing the number of system switching, the energy consumption decreases and the comfort level increases. At the same time, shocks and pressure fluctuations in the system can be dampened.

Brochures and Catalogues

Expansion Tank Features

  • In closed heating and cooling systems, it is suitable for use as expansion tank to compensate for the increase and decrease in the volume of the water due to the temperature variation.
  • It is suitable for use as pressure storage and shock damping tank in booster sets. In this way, by reducing the number of system switching, the energy consumption decreases and the comfort level increases. At the same time, shocks and pressure fluctuations in the system can be dampened.
  • It is presented for our customers in various capacities from 24 liters to 5000 liters.
  • Produced as standard 10 bar and 16 bar operating pressure.
  • It is suitable for use at water temperatures between -10°C and +100°C.

Expansion Tank Technicial Specifications

 

Hot water not exceeding 100°C
Operating pressure* : 10 bar / 16 bar (50 and 24 liter tanks
only 8 bar)
Mounting position : Vertical (Horizontal mounting
alternative for only 50 liter tank available
Gas charge : 4 bar dry air (optional nitrogen)
(1,5 bar for 50 and 24 liter tanks only)

Device Type

capacity

(litre)

Td

(mm)

H

(mm)

Connection

Ağzı

Empty Weight

(kg)

TGT-24/8-küresel

24

360

330

1"

6

TGT-24/8

24

280

465

1"

6

TGT-50/8-yatay

50

380

590

1"

12

TGT-50/8

50

380

750

1"

12

TGT-100/10

100

460

970

1"

20

TGT-200/10

200

590

1120

1 1/4"

40

TGT-300/10

300

640

1230

1 1/4"

45

TGT-500/10

500

750

1500

1 1/4"

70

TGT-750/10

750

750

1900

2"

120

TGT-900/10

900

800

1950

2"

140

TGT-1000/10

1000

800

2180

2 1/2"

160

TGT-1250/10

1250

800

2400

2 1/2"

200

TGT-1500/10

1500

960

2400

2 1/2"

260

TGT-2000/10

2000

1100

2520

2 1/2"

400

TGT-2500/10

2500

1100

2800

2 1/2"

420

TGT-3000/10

3000

1200

2800

3"

450

TGT-4000/10

4000

1450

3180

3"

750

TGT-5000/10

5000

1450

3720

3"

880

TGT-100/16

100

460

970

1"

50

TGT-200/16

200

590

1120

1 1/4"

55

TGT-300/16

300

640

1230

1 1/4"

65

TGT-500/16

500

750

1500

1 1/4"

95

TGT-750/16

750

800

1900

2"

220

TGT-900/16

900

800

1950

2"

240

TGT-1000/16

1000

800

2180

2 1/2"

260

TGT-1250/16

1250

800

2400

2 1/2"

350

TGT-1500/16

1500

960

2400

2 1/2"

400

TGT-2000/16

2000

1100

2520

2 1/2"

530

TGT-2500/16

2500

1100

2800

2 1/2"

640

TGT-3000/16

3000

1200

2800

3"

770

TGT-4000/16

4000

1450

3180

3"

1000

TGT-5000/16

5000

1450

3720

3"

1200

(*) Under the special request, an expansion tank can be delivered at an operating pressure of 25 bar.

Expansion Tank Usage Areas

    In heating and cooling systems

    If the pressure drops below the atmospheric pressure, this may cause airenterance into the system. Due to this air in the system water flow may be blocked, and undesirable deposits may
    occur in the installation as a result of oxygen corrosion. In addition, air can cause cavitation, especially in low height systems, at pumps and control equipments. For this reason, it is very important that the closed-loop systems are kept under a certain static pressure during operation. This may be possible by compensating for fluctuations in the amount of water between the maximum and minimum water temperatures.

     

    In pressure booster sets, the expansion tank functions as a pressurized water storage and is used to limit the number of pump switches. The difference between the amount of water instantaneously discharged by the pump and the amount of water consumed is stored in the tank or used from the tank. The pre-charged pressure in the tank is adjusted so that it will be slightly below the cut-in pressure of the pump. When the water pressure drops to the cut-in level due to consumption, the pump starts to operate and supplies water to the system. When consumption is cut off, the pump continues to operate until the gas pressure in the tank is raised to the cut-out pressure and stores some amount of pressurized water in the tank. When the consumption starts again, the water in the tank is used until the gas pressure drops to the cut-in pressure of the booster set, then the pump starts. In this way, the number of pump switches is reduced depending on the pressurized water accumulation capacity of the tank, and becomes independent from the start/end frequency of use. In addition, the pressure fluctuations that

    occur during the cut-in/cut-out of the pumps are also absorbed to provide a safe and comfortable operation.


    There is no need to control the number of pump switches in frequency-controlled booster sets, which adjusts the pump speed, and thus the flow, according to the amount of consumption. Because the pump continues to run at the minimum speed for a preset period of time after the usage is interrupted, and if the usage starts again during this period, the pump increases the flow accordingly. In such systems, the expansion tank is used not to adjust the number of switches, but to increase the safety and comfort of use by absorbing the water hammers and pressure fluctuations in the system. For this reason, a tank with a much smaller volume is sufficient. Likewise, in water supply and transfer systems expansion tanks are used to prevent system equipment from being damaged by water hammers and excessive pressure fluctuations.

Expansion Tank Advantages

    • It has a changeable-type membrane made of EPDM material which does not smell odor in water.
    • It is ready to be mounted in the system with the ready connection pipe with drain plug which is sized according to the tank volume.

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