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A bronze casting showing the sprue and risers. A riser, also known as a feeder, [1] is a reservoir built into a metal casting mold to prevent cavities due to shrinkage.Most metals are less dense as a liquid than as a solid so castings shrink upon cooling, which can leave a void at the last point to solidify.
The APAS to LIDS Adaptor System (ATLAS) was announced in 2008. [1] It would have been placed on the open PMAs and converted APAS-95 to the Low Impact Docking System (LIDS). [ 1 ] ATLAS was planned to be launched on Orion's first two missions to the International Space Station. [ 1 ]
Low-impact development (LID) is a term used in Canada and the United States to describe a land planning and engineering design approach to manage stormwater runoff as part of green infrastructure. LID emphasizes conservation and use of on-site natural features to protect water quality.
Drilling riser joints with buoyancy modules. A drilling riser is a conduit that provides a temporary extension of a subsea oil well to a surface drilling facility. Drilling risers are categorised into two types: marine drilling risers used with subsea blowout preventer (BOP) and generally used by floating drilling vessels; and tie-back drilling risers used with a surface BOP and generally ...
The RLWI enable subsea well intervention without having to use a drilling riser package connected to the subsea stack (blowout preventer system). The technology is based on wireline well maintenance, where the cable is routed via a subsea lubricator system [ 1 ] into the subsea well. [ 2 ]
Meroka on Spanish aircraft carrier Principe de Asturias. The Meroka CIWS is a Spanish Navy 12 barrelled 20 mm close-in weapon system (CIWS), using twelve Oerlikon 20 mm/12 guns mounted in 2 rows of 6 guns each. [1] [2] The system's primary purpose is defence against anti-ship missiles, and other precision guided weapons. However, it can also be ...
External access point for fire sprinkler and dry standpipe at a building in San Francisco, US Antique wet standpipe preserved at Edison and Ford Winter Estates. A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water ...
Riser clamp for a standpipe through-penetration firestop inside a fire hose cabinet under construction. A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them ...