Assy. Part
A
B
C
D
Maximum Accuracy
Maximum Operating
Number
Flow Range
Flow Range
2660-0051
8.5" (216mm)
4.0" (102mm)
1/2" (12.7mm)
1-1/2" Pipe
10-320 gpm (38-1211 Lpm) 3-380 gpm (11-1438 Lpm)
2660-0052
8.5" (216mm)
4.3" (109mm) 1/2" (12.7mm)
2" Pipe
15-520 gpm (57-1968 Lpm) 5-625 gpm (19-2365 Lpm)
17
Installation and Operation Manual
MultiFlo
* = Minimum sensor service clearance.
Assy. Part
A
B
C
D
Maximum Accuracy Maximum Operating
Number
Flow Range (gpm)
Flow Range (gpm)
2660-0030
1-1/2''—11-1/2'' NPT
2'' Pipe
7-3/8'' [188 mm] 3-7/8'' [99 mm]
5-110
3-145
NOTE 1'' I.D. Bore
2660-0031
1-1/2"—11-1/2" NPT
2" Pipe
5-3/8" [137 mm] 4-1/8" [105 mm]
10-320
3-380
2660-0031B
1-1/2"—11" BSP
2" Pipe
5-3/8" [137 mm] 4-1/8" [105 mm]
10-320
3-380
2660-0032
2"—11-1/2" NPT
2-1/2" Pipe 5-3/8" [137 mm] 4-3/8" [111 mm]
15-520
5-625
2660-0032B
2"—11" BSP
2-1/2" Pipe 5-3/8" [137 mm] 4-3/8" [111 mm]
15-520
5-625
2660-0033
2-1/2"—8" NPT
3" Pipe
5-3/8" [137 mm] 4-9/16" [116 mm]
20-750
8-900
2600-0033B
2-1/2"-11" BSP
3" Pipe
5-3/8" [137 mm] 4-9/16" [116 mm]
20-750
8-900
2660-0034
3"—8" NPT
4" Pipe
5-1/2" [140 mm] 4-7/8" [124 mm]
30-1150
12-1380
2600-0034B
3"—11" BSP
4" Pipe
5-1/2" [140 mm] 4-7/8" [124 mm]
30-1150
12-1380
2600-0035
4"—8" NPT
5" Pipe
5-1/2" [140 mm] 5-3/8" [137mm]
55-1980
20-2380
2660-0035B
4"—11" BSP
5" Pipe
5-1/2" [140 mm] 5-3/8" [137mm]
55-1980
20-2380
1
1
FoamPro Flowmeter
NOTES: 1. Use CAUTION not to
damage sensor during
assembly.
2. Use Loctite PST 565 or
equivalent Teflon tape to
seal pipe threads.
3. Maximum horizontal
installation angle to
allow proper water
drainage. Unit may also
be installed in vertical
piping arrangement.
FoamPro Manifold
“C” Injection Port
1/4” NPT Drain Port
1/4” Pipe Plug 2406-0039
“D” Groove Victaulic
Both Ends
Foam Manifold
w/Check Valve
Retaining Pin
1600-0062
4.0” (102mm) minimum
Service Clearance
Flowmeter
2660-0056
“A”
“B”
Sensor Assembly
Retaining Pin
O-rings
D
C
Grooved for B pipe
85° max.
see
NOTE #3
3.12* min.
(79 mm)
A
Female
Pipe Threads
4.00* min.
(102 mm
)
