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Expansion SystemsExpansion VesselsBaseflexBaseflex 8 - 80
Technical Specifications
Maximum working pressure: 6.0 bar. Red (RAL 3002) epoxy powder coating (also available in white (RAL9010)). Vessels in accordance with EN13831. Suitable for systems with a maximum system temperature of 120 °C. Min. / max. temperature diaphragm: -10 / 70 °C. Diaphragm: EPDM. All welded construction. Zinc plated flange. Suitable for addition of glycol-based anti-freeze up to 50%. Suitable for addition of ethanol-based anti-freeze up to 30%. In accordance with Pressure Equipment Directive 2014/68/EU. Baseflex 35 - 80: Standard equipped with legs.
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Baseflex 8 - 80

For sealed heating (acc. to EN12828) and cooling installations.
When the temperature in the installation rises, the system water will expand. The ‘expansion water’ is stored temporarily in the expansion vessel to keep the pressure in the installation at the correct level. Each vessel is factory tested.

The thread of the system connection is uncoated, ensuring problem free connection. The fixed bag-type diaphragm prevents the water to come in contact with the bare steel of the vessel. Nitrogen gas filling for longer maintenance of pre-pressure.

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25304 Baseflex  8/0.5 [6bar]
Baseflex  8/0.5 [6bar]

25304

Type
Baseflex  8/0.5 [6bar]
Capacity [l]
 8
Pre- charge [bar]
0.5
Max. working pressure [bar]
6
Dimensions
235
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 2.2
25300 Baseflex  8/1.5 [6bar]
Baseflex  8/1.5 [6bar]

25300

Type
Baseflex  8/1.5 [6bar]
Capacity [l]
 8
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
235
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 2.2
25255 Baseflex  8/1.5 [6bar] white
Baseflex  8/1.5 [6bar] white

25255

Type
Baseflex  8/1.5 [6bar] white
Capacity [l]
 8
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
235
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 2.2
25301 Baseflex 12/1.5 [6bar]
Baseflex 12/1.5 [6bar]

25301

Type
Baseflex 12/1.5 [6bar]
Capacity [l]
12
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
235
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 2.4
25256 Baseflex 12/1.5 [6bar] white
Baseflex 12/1.5 [6bar] white

25256

Type
Baseflex 12/1.5 [6bar] white
Capacity [l]
12
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
235
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 2.4
25324 Baseflex 18/0.5 [6bar]
Baseflex 18/0.5 [6bar]

25324

Type
Baseflex 18/0.5 [6bar]
Capacity [l]
18
Pre- charge [bar]
0.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25325 Baseflex 18/1.0 [6bar]
Baseflex 18/1.0 [6bar]

25325

Type
Baseflex 18/1.0 [6bar]
Capacity [l]
18
Pre- charge [bar]
1.0
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25302 Baseflex 18/1.5 [6bar]
Baseflex 18/1.5 [6bar]

25302

Type
Baseflex 18/1.5 [6bar]
Capacity [l]
18
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25326 Baseflex 18/0.5 [6bar] white
Baseflex 18/0.5 [6bar] white

25326

Type
Baseflex 18/0.5 [6bar] white
Capacity [l]
18
Pre- charge [bar]
0.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25327 Baseflex 18/1.0 [6bar] white
Baseflex 18/1.0 [6bar] white

25327

Type
Baseflex 18/1.0 [6bar] white
Capacity [l]
18
Pre- charge [bar]
1.0
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25332 Baseflex 18/1.5 [6bar] white
Baseflex 18/1.5 [6bar] white

25332

Type
Baseflex 18/1.5 [6bar] white
Capacity [l]
18
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 3.4
25328 Baseflex 25/0.5 [6bar]
Baseflex 25/0.5 [6bar]

25328

Type
Baseflex 25/0.5 [6bar]
Capacity [l]
25
Pre- charge [bar]
0.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 4.2
25329 Baseflex 25/1.0 [6bar]
Baseflex 25/1.0 [6bar]

25329

Type
Baseflex 25/1.0 [6bar]
Capacity [l]
25
Pre- charge [bar]
1.0
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 4.2
25303 Baseflex 25/1.5 [6bar]
Baseflex 25/1.5 [6bar]

25303

Type
Baseflex 25/1.5 [6bar]
Capacity [l]
25
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 4.2
25333 Baseflex 25/1.5 [6bar] white
Baseflex 25/1.5 [6bar] white

25333

Type
Baseflex 25/1.5 [6bar] white
Capacity [l]
25
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
290
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 4.2
25305 Baseflex 35/1.5 [6bar]
Baseflex 35/1.5 [6bar]

25305

Type
Baseflex 35/1.5 [6bar]
Capacity [l]
35
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 5.4
25334 Baseflex 35/1.5 [6bar] white
Baseflex 35/1.5 [6bar] white

25334

Type
Baseflex 35/1.5 [6bar] white
Capacity [l]
35
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 5.4
25306 Baseflex 50/1.5 [6bar]
Baseflex 50/1.5 [6bar]

25306

Type
Baseflex 50/1.5 [6bar]
Capacity [l]
50
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 8.7
25335 Baseflex 50/1.5 [6bar] white
Baseflex 50/1.5 [6bar] white

25335

Type
Baseflex 50/1.5 [6bar] white
Capacity [l]
50
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
 8.7
25307 Baseflex 80/1.5 [6bar]
Baseflex 80/1.5 [6bar]

25307

Type
Baseflex 80/1.5 [6bar]
Capacity [l]
80
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
12.3
25336 Baseflex 80/1.5 [6bar] white
Baseflex 80/1.5 [6bar] white

25336

Type
Baseflex 80/1.5 [6bar] white
Capacity [l]
80
Pre- charge [bar]
1.5
Max. working pressure [bar]
6
Dimensions
390
Syst. conn. (E)
G 3⁄4" M
Weight [kg]
12.3
TypeCapacity
[l]		Pre-
charge [bar]		Max. working pressure [bar]DimensionsSyst.
conn.
(E)		Weight
[kg]		Order
Code
A
[mm]		B
[mm]		Ø C
[mm]		D
[mm]
Baseflex  8/0.5 [6bar] 80.56235272--G 3⁄4" M 2.225304
Baseflex  8/1.5 [6bar] 81.56235272--G 3⁄4" M 2.225300
Baseflex  8/1.5 [6bar] white 81.56235272--G 3⁄4" M 2.225255
Baseflex 12/1.5 [6bar]121.56235363--G 3⁄4" M 2.425301
Baseflex 12/1.5 [6bar] white121.56235363--G 3⁄4" M 2.425256
Baseflex 18/0.5 [6bar]180.56290375--G 3⁄4" M 3.425324
Baseflex 18/1.0 [6bar]181.06290375--G 3⁄4" M 3.425325
Baseflex 18/1.5 [6bar]181.56290375--G 3⁄4" M 3.425302
Baseflex 18/0.5 [6bar] white180.56290375--G 3⁄4" M 3.425326
Baseflex 18/1.0 [6bar] white181.06290375--G 3⁄4" M 3.425327
Baseflex 18/1.5 [6bar] white181.56290375--G 3⁄4" M 3.425332
Baseflex 25/0.5 [6bar]250.56290479--G 3⁄4" M 4.225328
Baseflex 25/1.0 [6bar]251.06290479--G 3⁄4" M 4.225329
Baseflex 25/1.5 [6bar]251.56290479--G 3⁄4" M 4.225303
Baseflex 25/1.5 [6bar] white251.56290479--G 3⁄4" M 4.225333
Baseflex 35/1.5 [6bar]351.5639048233070G 3⁄4" M 5.425305
Baseflex 35/1.5 [6bar] white351.5639048233070G 3⁄4" M 5.425334
Baseflex 50/1.5 [6bar]501.5639060733070G 3⁄4" M 8.725306
Baseflex 50/1.5 [6bar] white501.5639060733070G 3⁄4" M 8.725335
Baseflex 80/1.5 [6bar]801.5639085433070G 3⁄4" M12.325307
Baseflex 80/1.5 [6bar] white801.5639085433070G 3⁄4" M12.325336

Accessoires

28920 Flexcontrol 3/4
Flexcontrol 3/4

28920

27920 Flexfast 3/4
Flexfast 3/4

27920

Accessoires

28920 Flexcontrol 3/4
Flexcontrol 3/4

28920

27920 Flexfast 3/4
Flexfast 3/4

27920

Flamco | Flow of Innovation

From the heat source to heat emission to heat distribution, Flamco, Meibes and Simplex cover a broad spectrum of innovative building technology systems. This internationally active group of companies has specialised in technical products and systems in the fields of installations, heating, cooling and solar solutions. The sister companies belong to Aalberts N.V. of the Netherlands.

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