Air admittance valve VB 10, stainless steel, small flange KF DN 10

Air admittance valve VB 10,
stainless steel, small flange KF DN 10 These valves are compact air admittance valves with a small flange. The VB valve is manually operated. On rotating the knurled screw cap, the valve disc is lifted off the seating, and air enters through the holes. The valve disc is rotatable. Therefore the valve seat seal is prevented against wear during opening and closing.
The VS und VS C series valves from VACUUBRAND are butterfly-type valves.
The VS und VS C series valves from VACUUBRAND are butterfly-type valves. A circular valve plate with a sealing ring on the circumference rotates around an axis at right angle to the valve axis. As a result, the valves leave virtually the entire cross section free, offering very good conductance.