COMPACT PURIFYING COFFIN FILTER – VA807

PURIFYING COFFIN FILTER FOR HERMETIC BONNETS

Absorbent carbon filter with mechanical opening to allow the gases generated inside the hood to escape.
The flow of gases is regulated by a valve controlled by the variation in pressure inside the bonnet.

With mechanical opening controlled by the increase in pressure in the hood (2 hundredths above the external pressure) to avoid any damage to the case and hermetic closing with the drop in internal pressure (already 8 thousandths above the external pressure).

In compliance with European Regulations: according to Eurovent requirements (NF44013 and NF44011) they have passed the tests of filtration of aerosols (dust and particulates) and absorption of nitrogenous and sulphate compounds according to the “Protocoles d’essai des appareils pour cercueils hermétiques” du Conseil Supérieur d’Hygiène Publique de France and the additional tests of the Italian Ministry of Health of uptake of acetic and formic acids, hydrogen phosphorus, methyl mercaptan and trimethylamine. (Authorized by the Ministry of Health with Decree of 29 July 1999)

• Opening pressure: 1,020 bar
• Closing pressure: 1.008 bar