HG/T 4110-2009Cooling fans (pultruded blades) - Technical specifications (English PDF)

HG/T 4110-2009 is the English-translated version of 冷却风机(挤拉叶片)技术条件.

HG/T 4110-2009 is the Chinese chemical industry standard for cooling fans whose blades are made by pultrusion. It fixes the naming and the basic parameters of these fans and sets technical requirements for blade design, for the pultrusion itself, and for assembly, balancing, natural frequency and installation. It applies to fans of 1800 mm to 10060 mm diameter used in the mechanical draught cooling towers of circulating water systems and in air-cooled heat exchangers. The blades it deals with are of the newer pultruded kind, made of glass reinforced plastic, steel or aluminium. Its references include GB/T 1236, GB/T 6892, GB/T 7190.1, GB/T 7190.2, GB/T 9239.1 and HG/T 3132. Issued on 4 December 2009, it has applied since 1 June 2010.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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