Insulation selection table

It is recommended to use a special summary table for convenience of Energomax®, Energoflex® and Energocell® HT insulation selection by diameter for different types of pipes.
The table is advisory in nature. When using it, it is recommended to take into account the tolerances of pipe manufacturers for external diameter and their ratio with tolerances for internal diameter of insulation.
Tolerances for internal diameter of insulation are given in table Limit deviations of the sizes.

Insulation inner diameter, mm Steel pipes Copper pipes
Pipes for gas and water conveyance Longitudinal welded pipes For refrigerating engineering and air-conditioning Sanitaryware
Inches DN, mm Outer diameter, mm Outer diameter, mm Inches Outer diameter, mm Outer diameter, mm
6         1/4 6,35 6
8         5/16 7,93 8
10       10/10,2 3/8 9,53 10
12       12 1/2 12,70 12
15 1/4 8 13,5 15/16 5/8 15,88 15
18 3/8 10 17 18 3/4 19,05 18
22 1/2 15 21,3 21,3/22 7/8 22,22 22
25       25      
28 3/4 20 26,8 28 1 1/8 28,57 28
30       30      
35 1 25 33,5 33,7/35 1 3/8 34,92 35
42 1 1/4 32 42,3 42 15/8 41,27 42
45       44,5/45      
48 1 1/2 40 48 48/48,3      
54       54 2 1/8 53,98 54
60 2 50 60 57/60      
64       63,5     64
70       70 2 5/8 66,66  
76 2 1/2 65 75,5 76     76,1
89 3 80 88,5 89     88,9
110       108     108
114 4 100 114 114      
133       133     133
140* 5 125 140 140      
160       159     159
Outer diameter, mm Polypropylene pressure pipes PP Metal-reinforced plastic pipes Cross linked polyethylene pipes PE-X Sanitary drain pipes made of polypropylene and PVC PP/PVC
PP PP-R armoured
Outer diameter, mm Outer diameter, mm Outer diameter, mm Outer diameter, mm Outer diameter, mm
15     14 14  
18     16/17 16/17  
22 20 22,3 18/20 18/20  
25 25        
28   27,3 25/26 25  
35 32 34,3 32 32  
42 40 42,7 40 40  
54 50 53,3 50 50 50
64 63   63 63  
76 75 78,3   75 75
89       90  
110       110 110

* It is recommended, that tubes Energomax® and Energoflex® with an internal diameter of 160 mm be used for insulation of 140 mm pipes, removing excess material along the entire length before installation.