Installation
July 2018
4-22
06-237518-001
4-9.3
Fittings
Fittings shall be used with a working pressure of not less than 70 bar i.e. EN10241 (Seamless
with test pressure of 150 bar) or BS 3799 (3000 Ib) forged steel.
4-9.4
Support of Pipes/Manifolds
4-9.4.1
Pipe Spans
The distance between supports should not exceed the distances stated in Table 4-13.
Supports shall be fastened to an adequate structural member by the use of suitable anchors,
expansion anchors, plugs, or similar means. Anchors and fastening bolts shall be selected in
accordance with the anticipated loads and the dimension of the hole in the relevant bracket.
4-9.4.2
Nozzle Supports
Adequate support shall be provided for nozzles and their reactive forces; in no case shall the
distance from last support be greater than as follows:
•
Nominal pipe diameter of
≤
25mm, Max distance
≤
100mm
•
b) Nominal pipe diameter > 25mm, Max
≤
250mm
CAUTION
The calculation software has only been verified for use with the piping, inside pipe
diameter and fittings specified in this manual. When unspecified piping and fittings
are used for unbalanced systems, there is a risk that the system will not supply the
required quantity of Agent.
Table 4-13. Pipe Support Distances
Nominal Pipe
Diameter
(mm)
Max. Span
(m)
Max. Free End
(m)
15
1.5
0.8
20
1.8
0.9
25
2.1
1.1
32
2.4
1.2
40
2.7
1.3
50
3.4
1.7
65
3.5
1.8
80
3.7
1.9
100
4.3
2.0
125
4.8
2.0
150
5.4
2.0
Summary of Contents for 400 Series
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