Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001 Manuale Utente
Design
P/N 81-CO2MAN-001
3-61
September 2013
3-12.1.2
FITTING SPECIFICATIONS
Class 300 malleable or ductile iron fittings shall be used through 2-inch (DN50) internal pipe
Class 300 malleable or ductile iron fittings shall be used through 2-inch (DN50) internal pipe
size (IPS). Larger internal pipe sizes shall be forged steel fittings. Flanged joints used in open
sections of pipe shall be permitted to be Class 300. Flanged joints used in closed sections of
pipe shall be Class 600.
Stainless steel fittings shall be type 304 or 316 in accordance with ASTM A182, Class 3000,
Stainless steel fittings shall be type 304 or 316 in accordance with ASTM A182, Class 3000,
threaded or socket welded, for all sizes 1/8-inch (DN6) through 4-inches (DN100).
3-12.1.3
TUBING SPECIFICATIONS
The use of stainless steel tubing materials is allowed provided the thickness of the tubing is
The use of stainless steel tubing materials is allowed provided the thickness of the tubing is
calculated in accordance with ASME B31.1 Power Piping Code. The internal pressure for this
calculation shall be 2800 psi (19.3 MPa).
3-12.1.4
CLOSED PIPING SECTIONS
NFPA 12 requires the installation of a pressure relief device where a valve arrangement (i.e.,
NFPA 12 requires the installation of a pressure relief device where a valve arrangement (i.e.,
Time Delay, Stop Valve, Lock-Out Valve, etc.) introduces sections of closed piping.
The maximum allowable working pressure of the pipe shall be equal to or greater than the
The maximum allowable working pressure of the pipe shall be equal to or greater than the
maximum operating pressure of the pressure relief device. The maximum operating pressure
of the Safety Outlet, Part No. 81-803242-000, is 2800 psi (19.3 MPa).
The Piping Design Handbook For Use With Special Hazard Fire Suppression Systems, published
The Piping Design Handbook For Use With Special Hazard Fire Suppression Systems, published
by the Fire Suppression Systems Association (FSSA), may be consulted for pipe selections used
in closed piping sections.
3-12.2
Pipe Size Estimates
For budgetary estimating purposes only, Table 3-9 may be used to estimate pipe sizes. The
actual system pipe sizes required may vary when hydraulic calculations are performed.
Table 3-9. Pipe Size Estimates
Flow Rate
Pipe Size
Min Pipe
Schedule
lb./min
kg/min
in. (mm)
Up to 100
Up to 50
3/8 in. (10mm)
40
101 - 130
51-60
1/2 in. (15mm)
40
131 - 270
61-125
3/4 in. (20mm)
40
271 - 390
126-180
1 in. (25mm)
80
391 - 800
181-365
1-1/4 in. (32mm)
80
801 - 1200
366-545
1-1/2 in. (40mm)
80
1201 - 2300
546-1045
2 in. (50mm)
80
2301 - 3600
1046-1635
2-1/2 in. (65mm)
80