No More Clogged Flowmeters!
Rola-Chem's Flowmeters have a wide chamber that greatly reduces mineral deposits by allowing higher flow volume.
Designed to be compatible with practically every existing flowmeter, replace your old clogged flowmeters with these accurate, easily serviced units from Rola-Chem.
Rola-Chem flowmeters are built to withstand water temperatures up to 200°F and are manufactured to work with schedule 40 PVC pipe.
- Accurate Readings
The heavy-duty gasket ensures airtight seals
- Visual Indicator
Calibrated on both sides in gallons and liters per minute
- Serviceable
Easily open and remove calcium deposits if necessary
- Full Range mounting
Side, vertical, or top 1" to 8"; vertical mount is reversible for up or down reading.
Requires 3/4" diameter hole in pipe
- Easy-to-Read Bobbin
316 stainless steel ball prevents corrosion
Flowmeter Sizing Guide
Model |
Pipe Material |
Pipe Size |
A* minimum |
B* minimum |
Range GPM |
Range LMP |
Clamp Size |
570321 |
PVC-Galv |
1" |
5" |
10" |
10-30 |
38-114 |
40 |
570331 |
PVC-Galv |
1.25" |
6" |
11" |
15-50 |
57-189 |
44 |
570340 |
Copper |
1.5" |
8" |
15" |
20-55 |
76-208 |
44 |
570341 |
PVC-Galv |
1.5" |
8" |
15" |
25-60 |
95-227 |
44 |
570350 |
Copper |
2" |
10" |
20" |
40-140 |
151-530 |
56 |
570351 |
PVC-Galv |
2" |
10" |
20" |
40-140 |
151-530 |
56 |
570360 |
Copper |
2.5" |
13" |
25" |
70-245 |
265-927 |
64 |
570361 |
PVC-Galv |
2.5" |
13" |
25" |
70-240 |
265-908 |
64 |
570370 |
Copper |
3" |
15" |
30" |
100-280 |
379-1060 |
64 |
570371 |
PVC-Galv |
3" |
15" |
30" |
100-300 |
379-1136 |
64 |
570380 |
Copper |
4" |
20" |
40" |
200-480 |
757-1816 |
44 (2) |
570381 |
PVC-Galv |
4" |
20" |
40" |
175-500 |
662-1893 |
44 (2) |
570391 |
PVC-Galv |
6" |
30" |
60" |
400-1050 |
1514-3975 |
64 (2) |
570401 |
PVC-Galv |
8" |
40" |
80" |
700-1900 |
2650-7192 |
72 (2) |
*A = Minimum distance from downstream elbow or restriction. **B = Minimum distance from upstream elbow or restriction.
After Part Number, Indicate Mounting: (T) = Top • (S) = Side • (V) = Vertical