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Gate valves may have flanged ends drilled according to pipeline-compatible flange dimensional standards. Gate valves are typically constructed from cast iron, cast carbon steel, ductile iron, gunmetal, stainless steel, alloy steels, and forged steels. All-metal gate valves are used in ultra-high vacuum chambers to isolate regions of the chamber ...
The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques. [1] Pick holes in manhole cover, Palo Alto, California, USA Manhole valve made in 2022. The covers usually feature "pick holes", into which a hook handle tool is inserted to lift them.
The cylinder is secured by wrapping, or routing, the bungees around the cylinder valve handle, stem and/or cylinder neck. In addition to providing the desired cylinder positioning and trim, the bungees also provide the capacity to secure the cylinder top end to the diver while the cylinders are detached at the bottom and maneuvered into a ...
A gatehouse, gate house, outlet works or valve house for a dam is a structure housing sluice gates, valves, or pumps (in which case it is more accurately called a pumping station). Many gatehouses are strictly utilitarian, but especially in the nineteenth century, some were very elaborate.
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Metal eyelets and an eyelet setting tool Seaman's chest with grommets fashioned for use as handles. Grommets are typically used to reinforce holes in leather, cloth, shoes, canvas and other fabrics. [2] They can be made of metal, rubber, or plastic, and are easily used in common projects, requiring only the grommet itself and a means of setting it.