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Matheson's Shielded
Flowmeters provide an added measure of safety for use when there is
danger of surging pressure or where exposed glass cannot be
tolerated. The clear polycarbonate shield that surrounds the
flowmeter tube adds strength and protection. This shield also
possesses excellent optical properties and is highly chemical
resistant.
Matheson Shielded
Flowmeters are available in 8 different sizes to offer a full range
of flow rates, from 0.05ml/min to 670 LPM air and 0.0005ml/min to 21
LPM water. Size 0, 1, 2, 3, 4, 5, 6 flowmeters each come with both a
spherical black glass float and a heavier stainless steel float to
provide an extended flow range. The Micro size flowmeter comes with
a special ruby float to attain extremely low flow rates. All except
the size 6 high flow tube are available with a 20 turn micrometer
capillary valve which provides precise, reproducible control of
fluid flow. The scales on these flowmeters are 6" in length except
for the micro size which is 4".
The accuracy of these
flowmeters is +/-2% of reading or 1 scale division, except for the
micro size. The accuracy of the micro size is +/-5% of reading or 2
scale divisions for air, and +/-10% of reading or 2 scale divisions
for water.
Matheson Shielded
Flowmeters are made of corrosion resistant materials: Borosilicate
glass flow tube, stainless steel and glass floats, TeflonŽ body,
VitonŽ fluoroelastomer O-rings, and polypropylene end bushings with
TeflonŽ inserts. Fluid does not touch the shield. An adapter kit
which creates an "all TeflonŽ'' flow path (except for the flow tube
itself) is available for high purity applications. As one is needed
for each end, be sure to order two TeflonŽ Adapter Kits per
flowmeter. Note that the size 6 flowmeter is already fitted with an
all TeflonŽ flow
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