Formula Air BADA000013 Bakım Kılavuzu - Sayfa 7

Kontrol Ünitesi Formula Air BADA000013 için çevrimiçi göz atın veya pdf Bakım Kılavuzu indirin. Formula Air BADA000013 18 sayfaları. Atex non-return valve

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1.3 Technical datasheet

1.3.1 Push flow situation

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

the explosion source (Figure: 7).

1.3.2 Pull flow situation

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

of the explosion source (Figure: 8).

1.3.3 Special conditions for safe use

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