GB/T 14478-2012: Fundamental technical requirements for large and medium inlet valves of hydraulic turbine

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Scope

This Standard specifies the fundamental technical requirements, model preparation
methods and others of large and medium inlet valves of hydraulic turbine.
This Standard applies to butterfly valves of which the nominal diameter of inlet valve is 1
000 mm ~ 10 000 mm, and ball valve of with the nominal diameter is 500 mm ~ 5 000 mm.
Other butterfly valves and ball valves (including storage pumps and pump turbines) can
refer to this Standard.

Basic Data

Standard ID	GB/T 14478-2012 (GB/T14478-2012)
Description (Translated English)	Fundamental technical requirements for large and medium inlet valves of hydraulic turbine
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K55
Classification of International Standard	27.140
Word Count Estimation	11,153
Older Standard (superseded by this standard)	GB/T 14478-1993
Quoted Standard	GB 150.1; GB 150.2; GB 150.3; GB 150.4; GB/T 191; GB/T 8564; GB/T 15468; GB/T 2900.45; GB/T 28546; HG 4-329; ASME �� first branch
Regulation (derived from)	National Standards Bulletin No. 13 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the basic medium-sized turbine inlet valve technical conditions and model preparation methods. This standard applies to turbine inlet valve nominal diameter 1 000 mm ~ 10 000 mm butterfly valve, nominal diameter 500 mm ~ 5 000 mm s