riser


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riser

1. the vertical part of a stair or step
2. a vertical pipe, esp one within a building

Riser

1. The vertical board under the tread of a step; a vertical supply pipe for a sprinkler system; a pipe for water, drainage, gas, steam, or venting that extends vertically through one or more stories and services other pipes.
2. The vertical face of a stair step.
See also: Step

riser

[′rīz·ər]
(chemical engineering)
That portion of a bubble-cap assembly in a distillation tower that channels the rising vapor and causes it to flow downward to pass through the liquid held on the bubble plate.
(civil engineering)
A board placed vertically beneath the tread of a step in a staircase.
A vertical steam, water, or gas pipe.
(geology)
A steplike topographic feature, such as a steep slope between terraces.
(metallurgy)
(petroleum engineering)
In an offshore drilling facility, a system of piping extending from the hole and terminating at the rig.
(textiles)
A raised spot in a weaving pattern where the warp traverses the weft or the filling.

riser

riser, 1
1. The vertical face of a stair step.
2. Any upright face, as of a seat, platform, etc.
3. A platform on the stage of a theater or concert hall on which a performer is placed.
4. A water-supply, drainage, gas, steam, or vent pipe which extends vertically, one full story or more, to service several branches or a group of fixtures.
5. An electrical cable which extends vertically, one full story or more, to distribute electrical power to electric panels on the different floors of a building.
6. A duct, which extends vertically, one full story or more, to distribute air to branch ducts on the different floors of a building.
7. A vertical supply pipe for a fire sprinkler system.
References in periodicals archive ?
Metal risers have three-position height adjustment and a perforated platform to help dissipate heat and keep
Riser fanned eight and scattered four hits in five innings to lead Lake Park to a 7-4 win over Batavia in Schaumburg.
As a global leader in TCP, Airborne Oil & Gas started a qualification programme in 2018 for dynamic TCP Risers intended to be deployed in deep water off the coast in Brazil, including for pre-salt environment.
IFP Energies nouvelles (IFPEN) stated on Thursday that it will now offer its Clip-Riser customers with new options for the inspection, maintenance and repair of their drilling risers.
The deepwater platform/riser system includes platform, riser, upper flex joint (UFJ), lower flex joint (LFJ), LMRP, blowout preventer (BOP), subsea wellhead, conductor, etc, as shown in Fig.
Late risers have more probability of different abnormalities.
That just-for-fun print soon became a working, breathing concept--a blueprint that would fuel his now company, BLOCK Risers.
This will increase the pressure rating of the riser system to 15,000 psi,creating a full HP/HT capability all the way from the subsea wellhead to the surface Blow-Out Preventer.
"For the Viking stadium, the architects originally designed the project to utilize double and triple concrete risers," says Steve Olson, Hanson sale representative.
"Data produced showed that the annulus was not flooded where the FlexGuard module was installed and therefore had not been exposed to oxygenated seawater which could cause corrosion of the riser's structural steel wires.
Paint the risers a contrasting colour to the rest of the staircase.