78
5.5.2.4 Installation of Pipe Brackets
(1)The supporting beam should be fastened to the wall, pillar or other building structure. It
should be placed horizontal horizontally with the top surface parallel with the center line of
the pipe.
(2)Pattern, installation, interval and standard height of supports for metal pipes should meet
corresponding design requirements and codes.
(3)Supports should be installed securely and contact the pipe closely. Separate supports are
required at the connection joint between the pipe and the equipment.
(4)Supports for chilled and cooling water pipes as well as main and branch pipes in the ma-
chine room should be anti-vibration. When a single-bar hanger is used, anti-vibration
hangers should be set up every 15m and at the pipe ends, valves, tee joints and elbows.
(5)See the table below for the interval of brackets.
Diameter (mm)
15 20 25 32 40 50 70
Max
Interval
between
Brackets
(m)
Insulated
Pipe
1.5 2 2.5 2.5 3 3.5 4
Non-
insulated
Pipe
2.5 3 3.5 4 4.5 5 6
Max
Interval
between
Brackets
(m)
Insulated
Pipe
5 5 5.5 6.5 7.5 8.5 9.5
Non-
insulated
Pipe
6.5 6.5 7.5 7.5 9 9.5 10.5
NOTE
It is applicable to the pipes with working pressure less than 2.0 and insulation density less
than 200kg/m
3
or without any insulation.
5.5.2.5 Installation of Pipes
Supply and return water pipes with the diameter of being or being less than DN 32 should be
thread connected, and pipes with the diameter of being or larger than DN40 should be welded.
Those which must be detachable should be flange connected. Before installation, foreign
matters inside the pie should be removed.
(1)Threaded Connection
A Series Modular-type Air-cooled (Heat Pump) Chiller
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