Formula Air BADA000010 유지 관리 매뉴얼 - 페이지 7

{카테고리_이름} Formula Air BADA000010에 대한 유지 관리 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Formula Air BADA000010 18 페이지. Atex non-return valve

1.3 Technical datasheet

Considering the normal process flow direction, the situation where the fan is located upstream of

the explosion source (Figure: 7).

Considering the normal process flow direction, the situation where the fan is located downstream

of the explosion source (Figure: 8).

Installation:

−

Installation, operation, maintenance and repair in areas with danger of explosions may only

be carried out by qualified personnel;

−

Ensure that no tools, nuts and bolts or assembly parts remain in the machine during assembly

or maintenance;

−

Selection and installation of the electrical parts within hazardous areas shall be fulfilled

according the EN60079‐14 and the installation instructions of the specific equipment;

−

No potential difference between all metal parts within the non‐return valve, or between

non ‐ return valve and earth may exist. Therefor earthing resistance between all metal parts

and earth shall be measured before operation and shall be maximum 1 MΩ between

Figure: 7 Push flow situation

Figure: 8 Pull flow situation