P.A.P.A. (Positive Air Pressure Attenuator) has been developed to solve the problems of positive pressures within drainage systems of multi-storey developments.

Features and benefits:

Easy to install vertically or horizontally.
Lightweight and strong construction.
Push-fit connection.
Stackable, up to 4 units.
Suitable for multi-storey developments.
Resistant to most chemicals.

Studor air admittance valves (AAVs) eliminate the need for passive pipe venting and roof penetrations with excellent performance as a result of their unique and patented design. The negative pressure-activated, one-way AAV vents to protect the trap seals in the drainage system by allowing the intake of air, so that the right level of pressure within the drainage system is maintained. Their unique design guarantees a lifetime performance on quick opening reaction time, zero maintenance and a 100% closing ability that meets all leading international product standards.

A Studor maxi-vent air admittance valve may be installed on the top of the P.A.P.A. (when installed vertically) turning it into a positive and negative transient protection device.

Features and benefits:

75–110 mm pipe sizes (maxi-vent).
32–63 mm pipe sizes (mini-vent).
Prevents the release of foul air from the drainage system.
Can divert condensation away from the sealing membrane.
Double screen protection against foreign material or insects.
Constant lifetime opening and closing.
Neutralise any internal condensation for constant membrane opening ability.
Dry membrane for consistent lifetime functioning, not depending on lubrication.
500K cycle endurance testing.
Connects to all Marley soil systems.

18/5542 - STUDOR Maxi and Mini Vent Air Admittance Valves