SitaVent refurbishment vent
Ventilation
Size DN | External diameter OD (mm) | Opening/Core borehole (mm) | Backflow safe for refurbishing internal diameters from– to (mm) with lip sealing ring | a (mm) | b (mm) | c (mm) | d (mm) |
---|---|---|---|---|---|---|---|
110 | 110 | 170 | 115 - 130 | 340 | 227 | 90 | 110 |
125 | 125 | 220 | 140 - 168 | 376 | 278 | 93 | 160 |
160 | 160 | 220 | 178 - 205 | 376 | 278 | 93 | 160 |
63 | 63 | 170 | 68 - 86 | 340 | 227 | 90 | 110 |
75 | 75 | 170 | 82 - 103 | 340 | 227 | 90 | 110 |
90 | 90 | 170 | 100 - 109 | 340 | 227 | 90 | 110 |
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