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New repair method of heavy machinery and equipment foundation, exemplified by the GMVH-12 motor compressor.
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Application of our own and modified shipbuilding technologies in the polish gas industry.
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KRIO Gas Denitrification Plant

KRIO Gas Denitrification Plant
63-430 Odolanów, ul. Krotoszyńska, POLAND
Tel.: (641) 64441-5, Telex: 462441, Fax: (641) 65989
Account no.: WBK O/Ostrów Wlkp. 352444-3593

inż. Wł. Kołodziejski

Odolanów, December 16, 1993


Subject: effectiveness evaluation of setting GMVH-12 motor compressors on foundations in compliance with the method proposed by Techmarin, with the account taken of the effectiveness of vibration damping in the whole 1Hz-500Hz frequency range - the frequency harmful to the personnel.

I enclose evaluation forms on exposure to vibration of the personnel operating GMVH-12 motor compressors in ZOG Odolanów methane pumping facility. The measurements were taken by the Provincial Sanitary and Epidemiological Office in Kalisz. The above mentioned documentation clearly demonstrates that the method you employed effectively damps vibration and thus eliminates harmful work conditions.

For example:
the reduction of vibration amplitude of the GMVH-12/1 unit in the range of 2, 4, 8, 32, 63, 125, 250, 500 Hz is correspondingly: 266, 4200, 3667, 2010, 2568, 1462, 1500, 1381% for one direction.

The enclosed forms provide the basis for a comprehensive analysis of the effectiveness of the method within the whole frequency range.

of Zakład Odazotowania Gazu KRIO - Odolanów
mgr inż. Józef Wołoszczuk

Technical Documentation a/a

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