Fike Clean Agent System - Equivalent Length Values

SECTION 2 – DESIGN
UL / ULC Ex4623 Fike Clean Agent System w/ FM-200™ Page 23 of 39
FM 3010715 Manual P/N: 06-215 (Rev G) Revision Date: January. 2010
2.8.6 EQUIVALENT LENGTH VALUES
All pipe, fittings, valves and other piping devices have “Equivalent Length” values that have been determined by
flow testing to represent the restriction (pressure loss) associated with flowing HFC-227ea through the device.
The following table lists the Equivalent Length values that have been established.
EQUIVALENT LENGTH TABLE (ENGLISH UNITS)
Pipe Size NPT
Union
(feet)
45
o
Elbow
(feet)
90
o
Elbow
(feet)
Thru Tee
(feet)
Side Tee
(feet)
Check Valve
(feet)
3/8” 0.3 0.6 1.3 0.8 2.7 - - -
1/2” 0.4 0.8 1.7 1.0 3.4 - - -
3/4” 0.5 1.0 2.2 1.4 4.5 - - -
1” 0.6 1.3 2.8 1.8 5.7 2.0
1-1/4” 0.8 1.7 3.7 2.3 7.5 - - -
1-1/2” 0.9 2.0 4.3 2.7 8.7 - - -
2” 1.2 2.6 5.5 3.5 11.2 4.0
2-1/2” 1.4 3.1 6.6 4.1 13.4 - - -
3” 1.8 3.8 8.2 5.1 16.6 4.0
4” 2.4 5.0 10.7 6.7 21.8 - - -
5” 3.0 6.3 13.4 8.4 27.4 - - -
6” 3.5 7.6 16.2 10.1 32.8 - - -
EQUIVALENT LENGTH TABLE (METRIC)
Pipe Size (mm)
Union
(m)
45
o
Elbow
(m)
90
o
Elbow
(m)
Thru Tee
(m)
Side Tee
(m)
Check Valve
(m)
10 mm 0.09 0.18 0.40 0.24 0.82 - - -
15 mm 0.12 0.24 0.52 0.30 1.04 - - -
20 mm 0.15 0.30 0.67 0.43 1.37 - - -
25 mm 0.18 0.40 0.85 0.55 1.74 0.61
32 mm 0.24 0.52 1.13 0.70 2.29 - - -
40 mm 0.27 0.61 1.31 0.82 2.65 - - -
50 mm 0.37 0.79 1.68 1.07 3.41 1.22
65 mm 0.43 0.94 2.01 1.25 4.08 - - -
80 mm 0.55 1.16 2.50 1.55 5.06 1.22
100 mm 0.73 1.52 3.26 2.04 6.64 - - -
125 mm 0.91 1.92 4.08 2.56 8.35 - - -
150 mm 1.07 2.32 4.94 3.08 10.0 - - -