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E-mail jerry@freeflowinc.com Phone 800-813-7055 or 402-397-8910 Fax 402-397-8487

Photographs of Free Flow Metering Manholes

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Free Flow Metering Manhole with 3"Parshall Flume in 4 ft. dia. manhole, hinged full area opening lid, lifting eyes, 10" pipe connections with flexible neoprene couplings and SS band clamps.

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Free Flow 9" Parshall flume in 4 ft. dia. manhole, dome top
for H20 street loading, lifting eyes, 2" NPT connections for instrumentation conduit, 30" inlet & outlet pipe stub connections with flexible neoprene couplings with stainless steel band clamps.

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Interior view of Free Flow Metering Manhole with 9" Parshall
flume in 4 ft. dia. manhole with full area opening lid. Grating
over flume and fiberglass access ladder are visible.

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Free Flow Metering Manhole with 12" Parshall flume in
4 ft. dia. manhole, hinged full area opening lid, pipe flange end connections.

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Free Flow Metering Manholes with 9" Parshall flumes in
4 ft. dia. manholes, domed top for H20 traffic loading.

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