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ENG
type of heads
system
flow-rate lb/h
A
B
C
D
line length
E
32 feet
80 feet
160 feet
air
water
air
water
air
water
air
water
ID mm
ID mm
ID mm
ID mm
ID mm
ID mm
ID mm
ID mm
65
11
8
6
4
3
5/8
1/2
3/4
5/8
3/4
5/8
1
3/4
130
22
15
11
9
6
3/4
1/2
1
5/8
1 1/4
5/8
1 1/4
3/4
260
44
30
22
18
12
1 1/4
1/2
1 1/4
5/8
1 3/8
5/8
1 1/2
3/4
500
85
58
43
34
23
1 3/8
1/2
1 1/2
5/8
1 3/4
5/8
2 1/4
3/4
Note: If the air line is more than 50 metres log, size the line so that
the pressure drop does not exceed 0.2 bar.
Try to limit the number of connections in the air and water lines to the
minimum possible.
The use of elbow or “T” connectors and reducers/adapters will increase
the pressure drop in the lines. The diameters shown in the tables have
been selected considering the use of a pair of connectors in each line, if
the number of connectors doubles choose the next largest diameter.
maintenance
distribution
cabinet
no. heads installed per type
16 feet
“MCmultizone” +030221981 - rel. 2.1 - 21.05.2009
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