ERV-GS HNBR is fire resistant to ISO 15540 up to 30 min. at +800° C. Therefore, usually no additional flame protection is necessary.
Flame Protection Cover type FSH default to DN 300, but are available on request to DN 1000 also possible with range limiters.
Part Number
ERV-GS HNBR 450.JIS 5 K FVZ / JIS 16 K RILSAN RG VSR...