Archive for the ‘Fans’ Category

Centrifugal Fans – Blowers

by

Oleg Tchetchel

Tenderall Fan Co. offers a complete line of centrifugal fan equipment, from small Baby Vent Sets capable of moving a few cubic feet per minute (CFM), to large, heavy-duty industrial mechanical draft fans with capacities to 1,000,000 CFM and with static pressures from 0″ Water Gauge (WG) to 150″ WG.

Over the years Tenderall Fan supplied centrifugal fans to a wide range of industries and applications including: combustion air supply, material handling, process ventilation, ovens and dryers, iron and steel industry, mine and tunnel ventilation, petro-chemical, power generation, marine and off-shore structures, pulp and paper, HVAC, paint/spray booths, fertilizer and various emission control applications. For the commercial HVAC market, Buffalo Blower offers general ventilation fans for institutional and retail buildings, schools, restaurants and hospitals. Special materials, construction, explosion-proof and spark-resistant design, variety of coatings and accessories are available to meet practically any application needs.

Tenderall Fan can do fan repair, retrofit and service shop provides complete rebuilds, shaft repairs, blade liners, in-field balancing, vibration analyses, performance upgrade, increased fan capacity, all metallurgies, all type of fans repair, and emergency service on all sizes and designs.

Tenderall Fanr air moving products are best know for “industrial quality” assuring reliable performance, relentless dependability and longevity. A staff of specially trained engineers will design a dependable fan that exactly fits customers dimensional and performance requirements.

Tenderall Fan fans and blowers are sold and serviced by air moving experts that can evaluate your needs and provide best recommendations for your application.

Since July 1, 2003, equipment manufactured for operation in potentially explosive environments has been required to comply with the EUs ATEX Manufacturers Directive (94/9/EC). The ATEX Directive applies to all countries in the EU and the European Economic Area (EEA).

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The ATEX Directive places the burden directly on the end-user. The end-user is responsible for the following:

Prevention of the formation of explosive atmospheres and possible ignition threats

Evaluating the risk of explosion for their specific atmosphere and process

Eliminating or reducing the level of risk for a specific atmosphere and/or process

Classifying the work and equipment environment into zones/categories for determining preparation of documentation for explosion protection

Identifying hazardous areas and utilizing warning signs to alert personnel and equipment suppliers of the potential hazard

Specifying suitably safe equipment for use in the zone to the engineer or equipment supplier

Since the introduction of the ATEX Directives in 2003, mechanical equipment manufacturers have been subject to similar certification requirements as electrical equipment manufacturers. Fan manufacturers have been allowed to subscribe to the manufacturing process as detailed in the European Standard EN 14986:2006, Design of fans working in potentially explosive atmospheres, which provides a guide for meeting the ATEX Directive (94/9/EC).

European Standard EN 14986 outlines manufacturing and design criteria for fan manufacturers to adhere to. Such design requirements include, but are not limited to, permissible material pairings, minimum clearances between rotating elements and the fan casing, casing design, bearing selection, impeller-to-shaft attachment and motor/electrical selection. As long as the fan manufacturer meets the requirements of the European Standard EN 14986:2006, they are in compliance with the ATEX directive (94/9/EC).

For additional information please refer to http://tenderall.com

Oleg Tchetchel

Industrial Ventilation Equipment Designer

nisco@globalserve.net

Tenderall Fan Co.

http://tenderall.com/blower/index.html

http://tenderall.com/ventilator/index.html

Oleg TchetchelIndustrial Ventilation Equipment Designernisco@globalserve.netTenderall Fan Co.http://www.tenderall.com/blower/index.htmlhttp://www.tenderall.com/ventilator/index.html

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