Handrails, cost

Half-year convention, 286-290 Handling of materials, 101-102 Handrails, cost of, 711 Harmonic mean, 742... 

The purchased cost for plate and packed towers can be divided into the following components (1) cost for shell, including heads, skirts, manholes, and nozzles (2) cost for internals, including trays and accessories, packing, supports, and distributor plates and (3) cost for auxiliaries, such as platforms, ladders, handrails, and insulation. 

Table 9 presents data that can be used for estimating the cost of such auxiliaries as ladders, platforms, and handrails. The installed cost of several industrial-type insulations, all with aluminum jackets, for towers and tanks may... 

Mechanism only for thickener, c/s including drive, access platform, central shaft, bridge, rake and scraping arm, handrail, surface skimmer, excluding inlet pipe and overflow launders, FOB cost 98000 for cross-sectional area = 100 m with n = 0.62 for the range 60-7000. Factors sandblast and paint, X 1.2. L+M = 1.35. 

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