Kidde IG-100 User Manual

Installation
April 2020 4-28 06-237619-001
4-8.5 Installation of Pipes
4-8.5.1 Cutting
The required length of pipe is measured and marked on the pipe. The pipe is cut at 90° with a
cutting machine. After cutting, the pipe end shall be reamed and all burrs removed and all
cutting oil shall be removed from both inside and outside of the pipe.
4-8.5.2 NPT/BSPT – Threading
Threads on all pipe and fittings must be tapered threads conforming to ANSI Specification
B-20.1. or ISO 7-1. Joint compound, tape or thread lubricant must be applied only to the male
threads of the joint excluding the first two threads.
Threads shall be cut to the full cutting length as specified in Table 4-15 and Table 4-16 using
a pipe-threading machine. After threading, the pipe shall be cleaned to remove excess cutting
oil and any other particulates.
Table 4-15. NPT Thread Length
Pipe
Diameter
Length of
NPT-Thread
Effective Length of
NPT-Thread
Free Length of
NPT- Thread
mm Inches mm Inches mm Inches
1/2” 14.50 0.570 13.56 0.533 0.94 0.037
3/4” 16.00 0.629 13.86 0.545 2.14 0.084
1” 19.00 0.748 17.34 0.682 1.66 0.065
1 1/4” 20.50 0.807 17.95 0.706 2.55 0.100
1 1/2” 20.50 0.807 18.38 0.723 2.12 0.083
2” 22.00 0.866 19.20 0.755 2.80 0.110
2 1/2” 31.00 1.220 29.00 1.141 3.00 0.118
3” 33.50 1.319 30.48 1.200 3.02 0.118
Table 4-16. BSPT Thread Length
Pipe
Diameter
Length of
BSPT- Thread
Effective Length of
BSPT-Thread
Free Length of
BSPT- Thread
mm Inches mm Inches mm Inches
1/2” 14.50 0.570 13.0 0.511 1.50 mm 0.059
3/4” 16.00 0.629 15.0 0.590 1.00 mm 0.039
1” 19.00 0.748 17.0 0.669 2.00 mm 0.078
1 1/4” 20.50 0.807 19.0 0.748 1.50 mm 0.059
1 1/2” 20.50 0.807 19.0 0.748 1.50 mm 0.059
2” 22.00 0.866 20.0 0.787 2.00 mm 0.078
2 1/2” 31.00 1.220 27.0 1.062 4.00 mm 0.157
3” 33.50 1.319 30.0 1.181 3.50 mm 0.137

Kidde IG-100 Specifications

General

Brand	Kidde
Model	IG-100
Category	Firefighting Equipment
Language	English