![Photo Hutterer & Lechner Consealed air admittance valve, without cover, DN 50/75 [Code number: HL 905N.0]](/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBNCtFQVE9PSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--173dd164fc46f83f426ab701db39a90439768408/HL_905N.0-photo.jpg?locale=en)
HL 905N - ventilation valve for horizontal pipelines. It is installed at the beginning of the pipeline. It prevents the water seal from breaking off from plumbing fixtures. It is made of polypropylene/ABS.
| Diameter | Capacity | Weight |
|---|---|---|
| DN, mm | l/s | kg |
| 50/75 | 12 | 0.342 |
| Height | Width | Depth | Weight | Volume |
|---|---|---|---|---|
| mm | mm | mm | kg | m3 |
| 140 | 180 | 180 | 0,342 | 0,004536000 |
Download data sheet: 
Consealed air admittance valve HL 905N.0
Download example of product installation: Consealed air admittance valve HL 905N.0
![Photo Hutterer & Lechner Consealed air admittance valve, without cover, DN 50/75 [Code number: HL 905N.0]](/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBL1ZiQWc9PSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--e7b10c59460720b25eac5de8eaf1e8181e4d60c8/HL%20905N.0_02-draft.jpg?locale=en)
![Draft Hutterer & Lechner Consealed air admittance valve, without cover, DN 50/75 [Code number: HL 905N.0]](/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBL1piQWc9PSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--eaae037227af6dfde5cb795d2934a2be32b0cf89/HL%20905N.0-draft.jpg?locale=en)