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Pipe Installation
In general, the installation should commence at the union
elbow / manifold assembly and progress along to the
discharge nozzles�� Install the Pipework to the installation
drawings provided, ensuring that the following is adhered
to:
The piping material must conform to the
requirements of NFPA 2001 4��2
The pipe must be reamed, blown clear and swabbed
with an appropriate solvent to remove mill varnish
and cutting oil before assembly as required by NFPA
2001 4��2��
PTFE (Teflon) tape is the only acceptable pipe
sealant and must be applied to the male threads��
•
•
•
Table 1: UK Steel Pipework
Requirements
Table 19: UK Fittings
1) Abbreviations:
BW - butt welded / CD - cold drawn / HFS - hot finished seamless / CFS - cold finished seamless / S - seamless
2) Where schedule numbers are given, these determine the minimum wall thickness in accordance with BS1600��
Where the specified pipe is not obtainable in these dimensions, the next larger thickness should be used��
(Note: Only use Fittings from table 20 that comply with US
requirements specified in table 21�� Do not use 90° sharp elbows/
tees for system installation)
SECTION 5 - INSTALLATION
FM-200® (UL/FM)
14A-07H
02
2010-03
Fitting Description
Pipe
Size
Screwed, complying with BS12,BS1740 or Class
10 of ANSI B1.3; or
up to &
including
20 mm
Forged Steel, Screwed complying with grade WPA
or WPB of BS3799; or
Forged Steel, Socket Weld, complying with grade
WPA or WPB of BS3799; or
Forged Steel, Butt Weld, complying with grade WPA
or WPB of BS140: Part 3 or Class 300 of ANSI B1.9;
Screwed, complying with BS1740 or Class 10 of
ANSI B1.3; or
above
20 mm
up to &
including
0 mm
Forged Steel, Screwed complying with grade WPA
or WPB of BS3799; or
Forged Steel, Socket Weld, complying with grade
WPA or WPB of BS3799; or
Forged Steel, Butt Weld, complying with grade WPA
or WPB of BS140: Part 3 or Class 300 of ANSI B1.9;
Screwed, complying with BS1740; or
above
0 mm
Forged Steel, Screwed complying with grade WPA
or WPB of BS3799; or
Forged Steel, Socket Weld, complying with grade
WPA or WPB of BS3799; or
Forged Steel, Butt Weld, complying with grade WPA
or WPB of BS140: Part 3;
Nominal Pipe Size Publication
Type of Pipe
1)
Grade of
Steel
Minimum Wall
Thickness
2)
Up to and including
0 mm
BS137 (BS EN 102)
BW
-
Heavy
BS 301 (BS EN 1021-1)
S
430
Schedule 40
(Schedule 0 for screwed joints)
BS 302-1 (BS EN 1021-1) HFS or CFS
30 or 430
ASTM A10-77
HF or CD
A or B
Over 0 mm up to and
including 100 mm
BS301 (BS EN 1021-1)
S
430
BS 302-1 (BS EN 1021-1) HFS or CFS
30 or 430
ASTM A10-77
HF 0R CD
A or B
Above 100 mm
BS301 (BS EN 1021-1)
S
430
Schedule 0
BS 302-1 (BS EN 1021-1) HFS or CFS
30 or 430
Schedule 40
(Schedule 0 for screwed joints)
ASTM A1 0-77
HF or CD
A or B
Содержание FM-200
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