Models
Flow Range (Water calibrated at 70˚F / 21˚C) Accuracy ±10%
PIPE SIZE*
|
SWITCHPOINT RANGE (GPM) |
MIN. ADJUST. |
MAX. ADJUST. |
ON |
OFF |
ON |
OFF |
1″ |
4 |
2 |
8 |
7 |
1½” |
7 |
5 |
13 |
11 |
2″ |
12 |
7 |
27 |
26 |
2½” |
18 |
12 |
35 |
32 |
3″ |
27 |
19 |
52 |
49 |
4″ |
63 |
50 |
123 |
120 |
5″ |
125 |
100 |
238 |
232 |
6″ |
190 |
158 |
350 |
338 |
* Metal pipe only. PVC and CPVC pipes require special paddles.
Specs
HYSTERESIS (Δ FLOW RATE TO ACTIVATE/DEACTIVATE SWITCH)
≈ 10% at upper end of flow range
≈ 30% at lower end of flow range
DIFFERENTIAL PRESSURE DROPS ACROSS UNIT
Under normal operating conditions:
≈ 1″–3″ pipe, less than 1 psi
≈ 4″–48″ pipe, negligible
WORKING LINE PRESSURE 200 psig max.
WORKING TEMPERATURE 250˚F max. continuous.
WETTED MATERIALS
Body: Brass Shaft: 304 Stainless Steel Paddle: 316 stainless steel Seal: EPDM
ELECTRICAL SWITCH CHARACTERISTICS
SPDT 15A, ½ hp @ 125 or 250VAC ½A @ 125VDC ¼A @ 250VDC 10,000,000 Operations Median
Model Q-16 can also be fitted with a SPDT Gold Cross Bar Switch for computer/PLC interface.