Water Flowmeters
and Basic Visual Indicators
U For 1⁄4 to 1" Pipe Sizes
U Visual Inspection
of Fluid
U Compact, Rugged Design
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FLMW201
shown larger
than actual size.
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The FLMW200 Series represents
an economical way to monitor
municipal-pressure water flows,
observe case drain flows, and verify
pump outputs. These flowmeters
have a low-mass axial turbine,
urged toward zero flow rate by a
precision torsion spring. As fluid
flows past the turbine blades, a
rotational torque is imposed on
the turbine and spring, causing
the turbine to rotate to a position
at which the spring’s return force
equals the fluid torque. Since
variable fluid flow rate causes
variable fluid torque, flow rate is
measured by correlating turbine
rotational displacement to flow rate.
FLMW200 Series flowmeters can be
installed in any orientation—horizontal,
vertical, or inverted. No straight
pipe runs are required. Several flow
ranges are available for a user’s
specific application needs.
The FLMW210 Series consists of
strictly flow/no flow indicators. Fluid
flow rotates the flow indicator’s
turbine predictably. FLMW210
Series indicators positively display
fluid flow if the turbine is rotating.
This rotation can be seen through
the viewing window. If a more
precise measurement of flow is
required, a chart on the side of the
indicator approximates turbine
rpm in GPM.
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FLMW200 Series
SPECIFICATIONS
Measuring Accuracy: ±5% FS
Repeatability: ±1% FS
Flow Measuring Range
(FLMW200 Series Flowmeters):
5 to 110 LPM (1 to 30 GPM)
Minimum Flow Detection
(FLMW210 Series Flow/No Flow
Indicator): 0.8 LPM (0.2 GPM)
Maximum Operating Pressure:
14 bar (200 psig)
Maximum Operating Temperature:
121°C (250°F)
Pressure Differential:
See graphs on next page
B-65
Filtration Requirements: 37 microns
(400 U.S. mesh) minimum
Materials (Wetted Components):
Polysulfone, brass, stainless steel,
Buna-N
FLMW203/205
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FLMW211 shown larger than actual size.
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FLMW202/204/207
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FLMW201
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Dimensions: mm (inch)
3
Dimension
A
B
Port Sizes
3
⁄4 to 1⁄2" Sizes
⁄4 to 1" Sizes
3
45 (1 ⁄4)
45 (13⁄4)
1
89 (3 ⁄2)
137 (53⁄8)
FNPT: 1⁄4, 3⁄8, 1⁄2FNPT: 3⁄4, 1
1
1
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1
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Model No. FLMW201
FLMW202
FLMW203
FLMW204
FLMW205
FLMW206
FLMW207
FLMW208
FLMW209
FLMW211
FLMW212
FLMW213
FLMW206/208
24
22
20
18
16
14
12
10
8
6
4
2
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To Order
30
Flow Range
5 to 20 LPM (1 to 5 GPM)
10 to 35 LPM (2 to 10 GPM)
15 to 55 LPM (3 to 15 GPM)
5 to 20 LPM (1 to 5 GPM)
10 to 35 LPM (2 to 10 GPM)
15 to 55 LPM (3 to 15 GPM)
30 to 110 LPM (6 to 30 GPM)
10 to 35 LPM (2 to 10 GPM)
30 to 110 LPM (6 to 30 GPM)
Flow/no flow indicator
Flow/no flow indicator
Flow/no flow indicator
Comes with complete operator’s manual.
Ordering Examples: FLMW202, 1⁄2" flowmeter, 10 to 35 LPM (2 to 10 GPM).
FLMW213, 1" flow/no flow indicator.
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NPT
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⁄2
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⁄2
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⁄4
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⁄4
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⁄4
1