Insulated water meter boxes

Our insulating material has a density of 20 kg / m3. The following figures apply to the material at 0ºC, which is the relevant temperature. 

The total insulating value is as follows:

Calculated only beneath the cover ( much better including the cover ). Thermal conductivity: 0,032 W/m  ºC ( 0,35 W/m  ºC of HDPE ).

K 1: Cover
                                    4,44 m2 x  ºC   
Insulating value =                W 

                               0,22 x W 
K – value =               m2 x ºC 

Corresponds to 173 mm. Mineral wool.

K 2: Conic ( average ) 
                                         2,06 m2 x ºC 
Insulating value =                       W 

                               0,48 x W 
K – value =                m2 x ºC 

Corresponds to 80 mm. Mineral wool. 

K 3: Vertical ( average ) 

                                      1,43  m2 x  ºC   
Insulating value =                    W 

                                  0,70 x W 
K – value =                   m2 x ºC 

Corresponds to 55 mm. Mineral wool.

                                      1              
K – value =          insulating value 
t = thickness
                                                     1                     
Insulating value =            thermal conductivty