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Key Features |
| Best for Applications where the Ratio
(Normal Flow/Set Point)
is 10:1 or greater. |
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| Applications |
| Process Cooling Systems
Leak Detection
Machine Tool Lubrication
Metering Pumps
Pollution Monitoring Instruments
Compressed Air Systems |
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| Features |
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Broad
Range of Adjustability |
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Water
or Explosion Proof Covers |
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Monitors
Gases or Liquids |
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Materials:
316ss or Brass |
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Confirms:
High Flow, Low Flow conditions |
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Output:
Switch Contact |
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| Operation |
At rest a magnetic piston that rides directly in the flow stream is held at the inlet port by magnetic repulsion. As flow is introduced, the piston is displaced and the flow travels across the face of the piston then turns 90 degrees to the outlet port. The greater the flow, the further the piston is displaced and the larger the through orifice becomes. At a given flow rate the piston reaches equilibrium. A third magnet mounted externally on the body senses the piston's position and mechanicaly activates the microswitch. The switch assembly may be adjusted to sense the various piston positions and thus varying the actuation point.
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Actuation Points for air at 68° F and 14.7 PSIA with increasing flow |
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Deactuation (decreasing flow) averages 40% less than actuation (increasing flow) |
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Repeatability
±2% |
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Unit
will pass greater flows |
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Corrections
must be made for other gases, line pressure and
temperatures. Please consult your representative
or the factory. |
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| Calibration
Range |
MODEL |
AIR
SCC/M (SCFH) |
WATER
ML/M (GPH) |
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MINIMUM |
MAXIMUM |
MINIMUM |
MAXIMUM |
Increasing |
0.28 (0.01) |
849 (30) |
0.38 (0.10) |
37.85 (10) |
| Decreasing |
0.20 (0.007) |
708 (25) |
0.38 (0.10) |
18.93 (5) |
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| Pressure
Loss Table |
AIR
FLOW RATE
CC/M (SCFH) |
WATER
FLOW RATE
ML/M (GPH) |
DP
TO
ATMOSPHERE
MBARS
(Inches of Water) |
42.5
(1.5) |
7.57
(2) |
25.9
(0.375) |
| 113.4
(4) |
15.14
(4) |
38.8
(0.563) |
| 283.6
(10) |
30.28
(8) |
56.1
(0.813) |
| 425.5
(15) |
45.42
(12) |
77.6
(1.125) |
At
any given flow rate, pressure differential
remains the same regardless of the actuation
point. |
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| Switch
Data |
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Switch Type is SPDT
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| Single
Pole Double Throw Micro-switch
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| UL
and CSA listed
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| Maximum
Voltage 125 VAC
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| Maximum
Switching Current 3 Amps |
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| Leads |
SPST
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| Leads
18 AWG insulation Leads 18 in. min. from body |
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Above values for resistive loads only. For inductive loads, surge current and rush current -- contact protection is required; consult your local representative. |
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Specifications |
Unit |
Weight
Lbs (Kg.) |
Working
Pressure PSIG (BARG) |
Wetted
Parts |
Seals |
Brass |
4 (1.81) |
1500 (103.42) |
Brass, 316ss, Epoxy |
Viton® |
316ss |
4 (1.81) |
3000 (206.84) |
316ss, Epoxy |
Viton® |
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Fluid
Ports: Inlet/Outlet 1/2" FNPT |
Electrical
Conduit :1/2"
FNPT |
Temperature
Operating Range: 32° to 220° F (0° to 104° C). For other temperature ranges, consult factory. |
Installation:
Mount vertically (leads up) with inlet port at bottom. A 100 micron filter is recommended. |
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