When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Packaged metering manhole - Wikipedia

   en.wikipedia.org/wiki/Packaged_Metering_Manhole

   Packaged metering manholes (PMMs) are an outgrowth of the fiberglass manholes developed in the 1960s. Packaged metering manhole factories integrate a primary device (typically a flume [1] or weir [2]) into a fiberglass manhole. The result is a lightweight, single-piece (generally), corrosion resistant structure from which an operator can ...

3. Sanitary manhole - Wikipedia

   en.wikipedia.org/wiki/Sanitary_manhole

   Sanitary manhole. A sanitary manhole (sewer manhole, [ 1 ]sanitary sewer manhole[ 2 ] or sewer maintenance hole[ 3 ]) is a manhole that is used as an access point for maintenance and inspection of an underground sanitary sewer system. Sanitary manholes are sometimes used as vents to prevent the buildup of pressurized sewage gas. [ 4 ]

4. Parshall flume - Wikipedia

   en.wikipedia.org/wiki/Parshall_flume

   For free flow, the equation to determine the flow rate is simply Q = CH a n where: Q is flowing rate (ft 3 /s) C is the free-flow coefficient for the flume (see Table 1 below) H a is the head at the primary point of measurement (ft) (See Figure 1 above) n varies with flume size (see Table 1 below) Parshall flume discharge table for free flow ...

5. Palmer-Bowlus Flume - Wikipedia

   en.wikipedia.org/wiki/Palmer-Bowlus_Flume

   Palmer-Bowlus Flume. Fiberglass 8-inch Palmer-Bowlus flume. The Palmer-Bowlus flume, is a class of flumes commonly used to measure the flow of wastewater in sewer pipes and conduits. The Palmer-Bowlus flume has a u-shaped cross-section and was designed to be inserted into, or in line with, pipes and u-channels found in sanitary sewer applications.

6. Hach Company - Wikipedia

   en.wikipedia.org/wiki/Hach_Company

   Hach Company manufactures and distributes analytical instruments and reagents used to test the quality of water and other liquid solutions. Manufactured and distributed worldwide, Hach systems are designed to simplify analysis by offering on-line instrumentation, portable laboratory equipment, prepared reagents, easy-to-follow methods, and ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!