Elevator - Wikipedia

An elevator (North American English) or lift (Commonwealth English) is a type of cable-assisted, roller-track assisted, or hydraulic cylinder-assisted machine that vertically transports people or freight between floors, levels, or decks of a building, vessel, or other structure. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist

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Heat exchanger - Wikipedia

A heat exchanger is a system used to transfer heat between two or more fluids.Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural

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Boilers and Boiler Safety - Texas Department of Licensing

This means all types of boilers that are used in commercial and public facilities that produce steam (either low or high pressure), hot water heating for use in comfort air heating systems, and hot water supply for use in domestic water systems (such as showers, sinks, pools, or for miscellaneous use) which includes potable hot water heater

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Chapter 175

Chapter 175: INSURANCE Section 1 Definitions; Section 2 Insurance contract; definition; Section 2A Reinsurance contracts; status; Section 2B Readability of policy form; definition; approval; actions based on language; Section 3 Unauthorized insurance, annuity or variable annuity contracts; prohibition; Section 3A Administration and enforcement of insurance laws by commissioner of insurance

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Steam and Condensate - A basic overview of a steam system

The stop or crown Valve isolates the boiler and its steam pressure from the process or plant. If steam is pressurised, it will occupy less space. Steam boilers are usually operated under pressure, so that more steam can be produced by a smaller boiler and transferred to the point of use using small bore pipework.

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Nondiscrimination on the Basis of Disability in Public

The ADA Home Page provides access to Americans with Disabilities Act (ADA) regulations for businesses and State and local governments, technical assistance materials, ADA Standards for Accessible Design, links to Federal agencies with ADA responsibilities and information, updates on new ADA requirements, streaming video, information about Department of Justice ADA settlement

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Guidance on Safe Operation of Hot Water Boilers

8 boiler operation 33 9 maintenance, repair and modification 38 10 periodic examination of hthw boilers only 40 11 energy and environment 41 appendix 1 - references 42 appendix 2 - definitions 45 appendix 3 diagrams of typical boiler arrangements 47 appendix 4 typical log sheet examples 57

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Economizer - Wikipedia

The first successful economizer design was used to increase the steam-raising efficiency of the boilers of stationary steam engines.It was patented by Edward Green in 1845, and since then has been known as Green's economiser.It consisted of an array of vertical cast iron tubes connected to a tank of water above and below, between which the boiler's exhaust gases passed.

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Design Professional Requirements: Boiler - New York City

NOTE: New applications for buildings erected under the 2008 Code must comply with the 2014 Code, as required by AC §28-101.4 and 102.4.3 Zoning. Boilers, new or altered equipment or accessory structures shall comply with the Permitted Obstructions provisions in required yards, open

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