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Key Features |
| Best
for Applications where the Ratio (Normal Flow/Set
Point) is 10:1 or less. |
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| Applications |
| Vacuum
Systems Wet Stations Gas Analyzers Cooling Systems
Industrial Fluid Lines |
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| Features |
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Broad
Range of Adjustability |
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Compact
Size |
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High
Resolution |
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Close
On-Off Differential |
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Ease
of Customer Setting |
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Monitors
Gases or Liquids |
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Materials:
316ss, Brass, Teflon® |
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Confirms:
Normal Flow Conditions |
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Senses:
High Flow, Low Flow conditions |
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Output:
Switch Contact |
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| Operation |
When
no flow is present the free magnetic piston rests
on the bottom of the bore, which is situated in a
bypass off the main line. Adjustment of the variable
orifice in the main line creates a small bypass flow
sufficient to lift the magnetic piston and actuate
the reed switch. When flow decreases, the piston moves
downward and the reed switch deactuates.
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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 10% 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 |
125-BP |
100
(0.21) |
20,000
(42.4) |
3
(0.048) |
500
(7.95) |
| 125-BPHF |
200
(0.42) |
60,000
(127)* |
5
(0.079) |
950
(15.105) |
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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) |
100
(0.21) |
3.00
(0.048) |
1.2
(0.50) |
| 5500
(11.7) |
200
(3.17) |
9.2
(3.71) |
| 7000
(14.8) |
400
(6.34) |
11.7
(4.71) |
| 20,000
(42.4) |
500
(7.93) |
24.7
(9.93) |
| 60,000
(127.1) |
950
(15.10) |
69.7
(28.00) |
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| Switch
Data |
SPST
Hermetically Sealed Reed Switch |
SPDT
SPDT is not recommended for A/C |
Max
Switching Voltage DC (V) 200 AC (V) 150 |
Max
Switching Voltage DC (V) 100 |
Contact
Rating DC (W) 50 AC (VA) 70 |
Contact
Rating DC (W) 3 |
Max.
Switching Current DC (A) 1.0 AC (A) 0.7 |
Max.
Switching Current DC (A) .25 |
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| Leads |
SPST
Leads 18 in. min. from body 22 AWG, TFE insulation. |
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SPDT
(optional)
Leads 18 in. min. from body 24 AWG, TFE insulation.
- green
- N.C.
- blue
- N.O.
- white
- Common
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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. SPDT
unit not UL Recognized. |
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Specifications |
Unit |
Weight
oz. (gm) |
Working
Pressure PSIG (BARG) |
Wetted
Parts |
Seals |
| Teflon® |
4.4
(123.5) |
100
(6.89) |
Teflon® |
Teflon® |
Brass |
16
(453.6) |
1500
(103.42) |
Brass,
TFE, Epoxy |
Viton® |
316ss |
16
(453.6) |
3000
(206.84) |
316ss,
TFE, Epoxy |
Viton® |
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Fluid
Ports: Inlet/Outlet
1/8" FNPT |
Electrical
Conduit Optional:Inlet/Outlet
1/8" FNPT |
Temperature
Operating Range: 32° to 220° F (0° to 104° C). For other temperature ranges, consult factory. |
Installation:
Mount vertically with the inlet port at bottom. A 10 micron fliter is recommended. |
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