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A Block and bleed manifold is a hydraulic manifold that combines one or more block/isolate valves, usually ball valves, and one or more bleed/vent valves, usually ball or needle valves, into one component for interface with other components (pressure measurement transmitters, gauges, switches, etc.) of a hydraulic system. The purpose of the ...
This may comprise a ‘double block’ consisting of two valves in series. Still more effective is a ‘double block and bleed’ comprising two isolation valves in series plus a bleed valve between them. The bleed valve enables the integrity of the valve on the hazardous side to be monitored. [5]
MLWN – mean low water neaps; MLWS – mean low water springs; mm – millimetre (SI unit) MM – prefix designating a number in millions (thousand-thousand) MMbod – million barrels of oil per day; MMboe – million barrels of oil equivalent; MMboed – million barrels of oil equivalent per day; MMbpd – million barrels per day
A polyptych (/ ˈ p ɒ l ɪ p t ɪ k / POL-ip-tik; Greek: poly-"many" and ptychē "fold") is a work of art (usually a panel painting) which is divided into sections, or panels. Some definitions restrict "polyptych" to works with more than three sections: [ 1 ] a diptych is a two-part work of art; a triptych is a three-part work; a tetraptych or ...
Both "blocking" and "block" were applied to stage and theater from as early as 1961. [2] The term derives from the practice of 19th-century theatre directors such as Sir W. S. Gilbert who worked out the staging of a scene on a miniature stage using a block to represent each of the actors. [3]
The definition of states mostly goes back to Adam von Bartsch, the great cataloguer of old master prints.A great deal of work was done by art historians during the 19th and early 20th centuries, and most non-contemporary printmakers now have all the states of their prints catalogued.
In interior design, a wash or color wash of paint on a wall can be used to create a textured effect as a faux finish. [2]In ceramics, a wash is typically a coloring oxide thinned with water applied to the piece to achieve an effect similar to a glaze.
Simultaneous art is a style of art that uses multiple, simultaneous discordant and confusing sensations and narratives to create art that was an experience, rather than an object. Each spectator's experience is a construct of multiple, simultaneous elements. The "meaning" of the art is indeterminate.