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Double wall pipes are usually hydrostatically tested, or tested to hold and maintain a target gas pressure before the first use. A different special application of a double-walled pipe is a jacketed pipe, which is used to make high viscosity liquids flow at elevated temperature through the carrier pipe.
The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy. Buoyancy occurs due to a difference in indoor-to-outdoor air density resulting from temperature and moisture differences ...
A product used where pipes penetrate roofs. Chimney flashing A general term for flashing a chimney to cover the intersections of the chimney and install a damp proof course (DPC) Kickout flashing At the very bottom of a roof/wall intersection, the lowermost step flashing specially formed to deflect water away from the wall. Valley flashing
Sometimes weep holes are placed at the bottom of the chimney to drain out collected water. A chimney cowl or wind directional cap is a helmet-shaped chimney cap that rotates to align with the wind and prevent a downdraft of smoke and wind down the chimney. An H-style cap is a chimney top constructed from chimney pipes shaped like the letter H ...
Officials are investigating a possible outbreak of Legionnaires’ disease at a Florida elementary school after a kindergarten teacher died. Katherine Pennington, 61, died on Nov. 24 after testing ...
A leak appearing within an analytic region (a rule added to the camera) is immediately analyzed for its attributes, including thermal temperature, size, and behaviour (e.g. spraying, pooling, spilling). When a leak is determined to be valid based on set parameters, an alarm notification with leak video is generated and sent to a monitoring station.
Reindeer prefer the cold, snowy climates of the northern hemisphere winters. It is difficult for a reindeer to survive outside of the frigid air.
Reindeer, Rangifer tarandus, are familiar hoofed animals that live in cold climates near the North Pole. In many societies, children learn about reindeer from a very early age. This is true even ...