26
The exact amount for each part in the cascade configuration varies and depends on the cascade type and the
number of boilers in the cascade set.
Furthermore, headers and connecting set couplings come in different sizes, depending on the cascade
configuration (see Table 4.1, Table 4.2 and Table 4.3).
Part list
Nr in
drawing
Part description
Remarks / variants
1
Locking Strip Cascade
2
Support Bracket Water Header
3
Support Bracket Gas header
4
Gas Header
DN50 / DN80
5
Support Beam
For mounting the support brackets
6
In-between Beam
7
Top Beam
8
L-stand
9
Supply Header
DN65 / DN80 / DN100
10
Return Header
DN65 / DN80 / DN100
11
Low Loss Header
DN65 / DN80 / DN100
12
Gas Connecting Set
¾ “
13
Gas Connecting Set
1”
14
Supply Connecting Set R1¼
15
Return Connecting Set R1¼
16
Supply Connecting Set R1
Return Connecting Set R1
Alternative to 15
– not in figure
18
Reducing Ring
19
Seal Cap Rp2
DN50 / DN80 | to block gas header
20
Drain Tap G½
21
Blind Flange
DN65 / DN80 / DN100 | to block water headers
22
Air Vent
23
External Temperature Sensor
24
U-bolt M8 x 50-
61 2”
25
U-bolt M8 x 71-77 2½
26
Square Seal Plug 50 x 50
27
Rectangular
Seal Plug 70 x 50
28
Hexagonal Bolt M8x16 DIN933
29
Hexagonal Bolt M8x25 DIN933
30
Hexagonal Bolt M12x60 DIN933
31
Hexagonal Nut M8 DIN934
32
Hexagonal Nut M12 DIN934
33
Flat Washer M8 DIN 125-1A
34
Flat Washer M12 DIN 125-1A
35
Flat Washer Large M8x24 DIN9021
36
Strap 385 x 4.8 mm
For keeping together loose wires and cables
