Product category:
Hydrometry, Environment and Floods
News Release from: McCrometer | Subject: Model MO300SW
Edited by the Processingtalk Editorial
Team on 29 April 2008
New reverse-helix propeller flowmeter
sheds debris
The innovative new McPropeller flowmeter is ideal for monitoring flows in municipal water systems, rural water systems, agricultural irrigation, landscape irrigation, parks and recreation areas
The MO300SW is a reverse-helix design propeller flowmeter that comes in a bolt-on saddle configuration suitable for use in line sizes from 4 to 12 inches Delivering accuracy of +/-2 percent over the full flow range with +/-0.25 percent repeatability, the MO300SW offers accurate flow measurement and high reliability in the industry's most popular 4 to 12inch line sizes
This article was originally published on Processingtalk on 30 Apr 2008 at 8.00am (UK)
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Featuring an innovative debris shedding design that turns the meter body 180degrees from normal, the MO300SW reverse-helix propeller is installed nose-first on the bearing shaft and utilises a reverse flow style bearing assembly.
This unique construction style allows the assembly to shed grass or sand and silt off away from the bearing with ease, for increased operational reliability and longer-life.
Plant matter, silt, and sand are a common problem in both surface and well water applications that can be alleviated with the MO300SW meter.
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Their debris often causes head-loss (low pressure) and the fouling of meters, pumps and other process components.
The result is extra maintenance, equipment damage or shorter equipment life in applications that include: drinking water from lakes and other aquifers, irrigation systems, treatment ponds, aquaculture and lagoons for amusement parks, golf courses and planned residential communities or in business parks and commercial developments.
To simplify installation and resist corrosion, the M0300SW meter features a 304C stainless steel saddle with the McCrometer advanced drive and register design.
The stainless steel saddle eliminates the fatigue-related breakage common with cast iron and aluminium saddles while providing unsurpassed corrosion resistance.
The stainless steel construction also is flexible enough to conform to out-of-true pipe conditions.
The MO300SW reverse-helix impellers are designed with high-impact polypropylene plastic, which retains its shape and accuracy over the life of the meter.
An optional high-temperature plastic that withstands temperatures to 160F (71C) is available for thermal water or heated-water applications.
The MO300SW 316 stainless steel impeller shaft is supported with lubricated 440C stainless steel bearings for superior reliability and long-life.
This shielded bearing design limits the entry of foreign materials and fluids into the bearing chamber, providing maximum bearing protection.
Shielded bearings significantly extend the meter life and reduce the total cost of instrument ownership.
An instantaneous mechanical flow indicator with a six-digit flow totaliser comes standard with the MO300SW.
This flow register is hermetically sealed within a die-cast aluminium case for operation in rugged conditions and extreme climate conditions.
An optional digital register is available upon request.
Unlike mag and other types of flowmeter, the MO300SW requires no electric power to operate.
With no batteries to fail in extreme heat or cold or humidity, flow data is continuously available and safe via the standard register on the MO300SW.
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