10 inch Metering Insert with Pump and Poles
Part Number: 68-3230-007Product Details
Accurate bubbler measurement for temporary monitoring sites - with no manhole entry.
Isco Flow Metering Inserts provide a quick and accurate means of measuring and recording flow in round sewer pipes. Their unique design allows you to install the metering inserts from ground level, eliminating the costs and hazards of manhole entry.
The metering inserts are designed for use with the Isco 730 and 4230 bubbler flow meters. They are ideal for short-term (a few hours) or long-term (several weeks) flow measurement studies.
• Tested and calibrated by St. Anthony Falls Hydraulics Laboratory at the University of Minnesota.
• Constructed of durable, corrosion-resistant aluminum and plastic.
• Each metering insert includes an integral round orifice for measuring higher flow rates.
• Attachable 60° V-notch weir plate provides higher accuracy at lower flow rates.
Versatile and Accurate
Isco Flow Metering Inserts allow you to accurately measure flow in pipes from 6 inch to 12 inch diameter, in manholes up to 16 feet deep. Tested and calibrated† by St. Anthony Falls Hydraulics Laboratory at the University of Minnesota, the metering inserts provide accurate measurement from 1 to 640 gpm.
Isco Flow Metering Inserts are constructed of durable, corrosion-resistant aluminum and plastic. A complete system consists of a metering insert and interlocking pole sections. Each metering insert includes an integral round orifice for measuring higher flow rates. An attachable 60° V-notch weir plate provides higher accuracy at lower flow rates.
Simple Setup and Operation
Connect the metering insert to the bubbler flow meter, adjust the bubble rate to about one bubble per second, and set the flow meter level reading to zero. The interlocking pole sections and the metering insert then snap together without tools. Using the pole from ground level, lower the metering insert into the manhole and position it in the upstream pipe.
Using the included pump, inflate the rubber bladder on the metering insert to seal and secure
the insert in place. The Isco bubbler flow meter then measures and records flow in the sewer. Installing an Isco Flow Metering Insert takes just minutes, and completely eliminates the hassles of installing a weir or flume in a manhole.
When your monitoring project is completed, removing the insert is easy. Simply deflate the bladder and use the pole to lift the metering insert to ground level. You can then quickly disassemble the metering insert for storage or transportation between monitoring sites.
|20 to 40 GPM (1.3 to 2.5 l/s)
||±2 GPM (±0.13 l/s)
|Above 40 GPM (2.5 l/s)
||±5% of reading
|Below 20 GPM (1.3 l/s)
||±1 GPM (±0.063 l/s)
||One Flow Metering Insert with attachable 60° V-notch weir plate and 6.1m (20 ft) inflation/bubbler hose; Five 0.76m (2.5 ft) pole sections; Foot pump for inflation of rubber bladder; Right angle pole
|Maximum Manhole Depth (approximate)
||4.9m (16 ft)
|Metering Insert Size
|with round orifice
||20 to 480 GPM (1.3 to 30 l/s)
|with V-notch weir
||1 to 230 GPM (0.063 to 15 l/s)