AWWA
Standard
Manufactured to comply with applicable provisions
of AWWA Standard No. C-704-92 for propeller-type flowmeters.
Tube
The Model QW500 is designed for a maximum continuous
working pressure of up to 150 PSI and is fitted
with ANSI B16.5 Class 150 flanges. The Model QZ500
is designed for a continuous working pressure of
up to 300 PSI and is fitted with ANSI B16.5 Class
300 flanges. The meter flow tube is fabricated from
304 stainless steel for maximum corrosion protection
and integral flow straightening vanes reduce upstream
flow turbulence.
Magnetic
Drive
As with all McCrometer propeller flowmeters, standard
features include a magnetically coupled drive.
Impeller
Impellers are manufactured of high-temp thermoplastic,
capable of retaining their shape and accuracy over
the life of the meter. Each impeller is individually
calibrated at the factory to accommodate the use
of any standard McCrometer register, and since no
change gears are used, the QW500/QZ500 can be field-serviced
without the need for factory recalibration.
|
Bearings
Factory lubricated, stainless steel bearings are used
to support the impeller shaft. The shielded bearing
design limits the entry of materials and fluids into
the bearing chamber providing maximum bearing protection.
Register
The instantaneous flowrate indicator is standard
and available in gallons per minute, Acre Feet,
Acre Inches, Cubic Meters and other units. The register
is driven by a flexible steel cable encased within
a protective vinyl liner. The register housing protects
both the register and cable drive system from moisture
while allowing clear reading of the flowrate indicator
and totalizer.
Installation
Standard installation is horizontal mount. If the
meter is to be mounted in the vertical position,
please advise the factory. A straight run of full
pipe the length of five(5) diameters ahead and one(1)
diameter behind the meter is the minimum normally
recommended.
Register
As with all McCrometer propeller flowmeters, standard
features include and instantaneous flowrate indicator
and straight reading, six-digit totalizer.
|
