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| Silencers |
| Ever since the company was founded, COVAL has done its utmost to reduce the noise levels of venturis and to improve their performances.
Often copied but never equalled, the acoustic performances of COVAL venturis are based on the shape of their internal structure and the innovative design of the silencers used, with high-tech soundproofing materials. | 
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| Controls |
| Pneumatic or Electric control for venturis GVP.
Electric control for micro-venturis GVA. | 
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| In-line vacuum filters, series FVUM and FVUG |
| The advantage of this range of lifters is that it is equipped with a transparent tank so that clogging is visible. | 
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