Korado Radik VKL Radiators

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Steel panel radiator with left bottom connection

RADIK VKL is a steel panel radiator in VENTIL KOMPAKT version which allows left bottom connection to a pressurized heating system. There are two upper and two lower hangers welded at the back of the radiator. Radiators in length 1800 mm and more have six hangers.

Technical Data

Height (H)

300, 400, 500, 600, 900 mm

Length (L)

400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1400, 1600, 1800, 2000, 2300, 2600, 3000 mm

Depth (B)


- Type 10 VK

47 mm

- Type 11 VK

63 mm

- Type 21 VK

66 mm

- Type 22 VK

100 mm

- Type 33 VK

155 mm

Connecting pitch

50 mm

Connecting thread

6 × G½ inside

Highest allowed working pressure

10 bar

Highest allowed working temperature (°C)

110 °C

Radiator connection

left bottom

Pressure Loss










In case of two-pipe heating system it is necessary to calculate the correct level of valve presetting and specify this in the project documentation to ensure a proper function of the heating system. This must be kept by the installer during installation of the heating system.


In case of one-pipe heating system it is necessary to set the valve at level 6. For adjusting the required mass flow in the radiator we recommend to use the compact connecting fitting with a fixed or adjustable flow volume of water in the radiator.

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