HL air admittance valves

If access to the roof is difficult or impossible, the sewage riser should be equipped with a special air admittance valve.

HL air admittance valves can be installed on both vertical and horizontal risers. They are connected to pipes with diameters from 32 to 110 mm.

HL air admittance valves are equipped with additional devices:

• Insect covers;
• Rubber membranes;
• Heat-insulated wall;
• T-shaped connection.

Also the product group includes spare parts for HL air admittance valves which include covers, insect covers etc.