موازنة المروحة
Fan Balancing (Information used from GOST 31350-2007 “VIBRATION. INDUSTRIAL FANS. REQUIREMENTS FOR PRODUCED VIBRATION AND BALANCING QUALITY” — an interstate standard developed from ISO 14694:2003 “Industrial fans — Specifications for balance quality and vibration levels”) Source note: this page is based on the fan vibration and balance quality requirements equivalent to ISO 14694:2003 and related interstate (GOST) adoptions of ISO standards, whose designations differ from the original ISO publication numbers. Where older ISO 1940-1 terminology appears, the current balance quality standard is ISO 21940-11 (formerly ISO 1940-1). Vibration produced by the fan is one of its most important technical characteristics. Read more









