Install Instructions

F261 Series Flow Switches Installation Instructions
2
Dimensions
Figure 1: Dimensions for F261 Standard Flow Switch, in. [mm]
1/2 [12]
Typical
Thread
Engagement
3-1/2
[89]
4-1/2
[114]
5-11/16
[144]
8-3/4
[222]
2-3/4
[70]
11/16
[18]
2-1/8
[54]
1/2 in.
trade size
or PG-16
conduit
opening
FIG:F261_stndrd_dmnsns
4
[102]
2
[51]
1-11 1/2 NPT
30 mm Hex
2-9/16
[65]
Figure 2: Dimensions for F261 Low-Flow Switch, in. [mm]
4
(102)
2
(51)
1-1/8
(29)
2-5/16
(59)
1-1/2
(38)
3/4
(19)
1-1/2
(39)
11/16
(18)
2-9/16
(65)
2-3/4
(70)
PG-16
conduit
opening
FIG:F261_lwflw_dmnsns
1/2 in. -14 dryseal thread or
3/4 in. - 14 dryseal thread
as specified, both ends