2
1. For the adjustable version, order by “C” dimension shown (in 1
1
⁄
4
" (31.8 mm) increments).
Minimum “C” dimension is 6
1
⁄
4
" (158.8 mm). Field adjustment is
±
1
3
⁄
8
" (34.9 mm).
2. Do not overtighten special cast iron fitting into the branchline fitting or breakage may result.
3. Approved length limitation is 36" (914.4 mm).
4. K-factor reduces by .03 per each 1
1
⁄
4
" (31.8 mm) additional length.
5. Install by applying pipe wrench to 1" (25.4 mm) brass connector, not to the sprinkler itself.
21
1
⁄
4
" (539.8 mm)
4.96
22
1
⁄
2
" (571.5 mm)
4.93
23
3
⁄
4
" (603.3 mm)
4.90
25" (635.0 mm)
4.87
26
1
⁄
4
" (666.8 mm)
4.84
27
1
⁄
2
" (698.5 mm)
4.81
28
3
⁄
4
" (730.3 mm)
4.78
30" (762.0 mm)
4.75
31
1
⁄
4
" (793.8 mm)
4.72
32
1
⁄
2
" (825.5 mm)
4.69
33
3
⁄
4
" (857.3 mm)
4.66
35" (889.0 mm)
4.63
H-1 Adjustable Ordering Chart and
K-Factor Table
Order “C”
Dim.
K-Factor
Figure 1
Model H-1 Adjustable Dry Sidewall
1 15/16" (49.2 mm) Min.
2 3/16" (55.6 mm) Max.
Sprinkler
Branch Line
"C" Dimension
(Min = 6
1
/
4
" (158.8 mm))
Main Tube
1" (25 mm) NPT
Finished Wall
Finished
Ceiling
Escutcheon
3 3/16"
(81.0 mm)
Dia.
4" (101.6 mm)
Min.
6" (152.4 mm)
Max.
1" (25.4 mm), 1
1
/ 4
" (31.8 mm),
1
1
/ 2
" (38.1 mm) Line Fittng = 3"
2" (50.8 mm) Line Fitting =
3
1
/ 2
" (88.9 mm)
1/2"
(12.7 mm)
2 9/16"
(65.1 mm)
2 1/4" (57.2 mm)
Diameter
(minimum)
Order “C”
Dim.
K-Factor
6
1
⁄
4
" (158.8 mm)
5.32
7
1
⁄
2
" (190.5 mm)
5.29
8
3
⁄
4
" (222.3 mm)
5.26
10" (254.0 mm)
5.23
11
1
⁄
4
" (285.8 mm)
5.20
12
1
⁄
2
" (317.5 mm)
5.17
13
3
⁄
4
" (349.3 mm)
5.14
15" (381.0 mm)
5.11
16
1
⁄
4
" (412.8 mm)
5.08
17
1
⁄
2
" (444.5 mm)
5.05
18
3
⁄
4
" (476.3 mm)
5.02
20" (508.0 mm)
4.99
Caution:
This unit must only be installed with the special
cast iron fitting supplied, as this a listed assembly.
Installation into any other fitting will void the listing.
OBSOLETE
