To help build out a working filtration system, [Fab] needed some valves, so set about printing some of his own. [Fab] went with a simple butterfly valve design, similar to the throttle valve in ...

Butterfly valves are quarter-turn rotary motion valves used as throttling valves to control flow through a system. They can be used with many different media. Butterfly valves offer several advantages ...

Figure 1 shows how this can be done. A butterfly valve has a hollow stem conducting outside air into a number of small holes and dispersing the air into the water. This can only be done if the vapor ...

Gas valves are flow control devices used to handle and control the flow of gases such as liquefied petroleum, oxygen, and sour and natural gas. They are available in a variety of metal or plastic ...

An increased use of agricultural drainage tile is one reason a 2025 deadline to reduce nitrate and phosphorus entering the Gulf of Mexico by 20 percent is unlikely. Drainage tile, a system that ...

Agricultural drainage tile, a system used by farmers to increase crop yields, is a main contributor to excess nutrients in waterways. LIVINGSTON COUNTY, Mo. — An increased use of agricultural ...

Or something may have happened over the years, like the collapse of a perimeter exterior drain tile that no longer carries water away, leading it to back up in the basement. Pooling water in or ...

but the valve damage will likely be reduced as the plug moves away from the seat. Figure 4. This graph compares the vena contracta pressures of a high recovery (ball, butterfly) valve versus a low ...

Relegated to a closet or a basement corner, a water heater lives a secluded life of quiet service, and its warning signs often go unheeded. For example, when enough sediment collects on the bottom ...

An increased use of agricultural drainage tile is one reason a 2025 deadline to reduce nitrate and phosphorus entering the Gulf of Mexico by 20% is unlikely. Drainage tile, a system farmers use to ...