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P. A. P. A.

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The Studor P.A.P.A. Solution for Multi-Storey Buildings

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The Studor P.A.P.A. (Positive Air Pressure Attenuator) is a revolutionary 'world-first' system developed to resolve the problems of positive pressures (transients / back-pressure) within the drainage systems of multi-storey and high rise developments. This is the perfect complement to the existing range of Studor Air Admittance Valves (AAVs), providing a complete venting solution for any Multi-storey building over 10 storeys high.

Whether you are a drainage system architect or engineer, the P.A.P.A. has changed the design of drainage venting systems, thus allowing building designers to simplify their sanitary waste systems with many benefits including:

The P.A.P.A. provides effective and complete protection against positive pressures in the drainage system, with no specialist installation requirements. The P.A.P.A. replaces existing vent piping, which means greater freedom of design.

The P.A.P.A. has a life time guarantee for peace of mind. The P.A.P.A. can be retrofitted to all types of high rise drainage designs.The P.A.P.A. also reduces the need for fire stopping devices. The P.A.P.A. has been installed in some of the highest buildings in the world without the need for very large vent pipes. Please see our reference projects pages for examples.

The Studor System is a complete venting system utilising Studor AAVs such as the Mini-Vent and the Maxi-Vent, together with the P.A.P.A. The Mini-Vent will protect fixtures on the branches of a system from any vacuum. The Maxi-Vent sits on top of the stacks, whilst the P.A.P.A. deals with the positive pressures.

How tall is your building?

Whether ventilation is required for a single fixture fitting, such as a toilet, a sink or a shower, or to resolve differences of air pressures within multi-storey buildings, planning for the right plumbing drainage solution in your new building usually comes down to the specification of the right Studor product or group of products (the Studor System) within your drainage system.

  • Fluctuating water levels or bubbling caused by positive pressure in a high rise WC. Have a look at this video which gives you an example.
  • A sink, bidet, or shower is trying to breathe and it gurgles at the end of a discharge.
  • A new en-suite is smelling and it is only 6 months old.

Whether ventilation is required for a single fixture fitting, such as a toilet, a sink or a shower, or to resolve differences of air pressures within multi-storey buildings, planning for the right plumbing drainage solution in your new building usually comes down to the specification of the right Studor product or group of products Studor Single Pipe System (SSPS) the within your drainage system.

This revolutionary product was first tested in the laboratory of Heriot-Watt University in Edinburgh and was invented by Professor John A. Swaffield and Dr David Campbell. The invention of such a system remains unique in the drainage and plumbing field and is patented along with the designs of numerous other Studor products.

The Advantages

  • Provides complete protection against positive AND negative pressures in the system
  • Replaces extensive vent piping, saving costs in materials and installation.
  • Provides greater freedom of design for engineers, architects and design professionals.
  • Eliminates the risk of water leakages through roof penetrations - no roof penetrations are required no matter how tall the building
  • Can be retrofitted into an existing drainage system to solve problems
  • Reduces the need for fire stopping devices preventing the "chimney effect" in the pipes, reducing the risk of fire spreading upwards between floors
  • Prevents transmission of odourous sewer gas into the building or surrounding areas
  • Requires no maintenance, as all the STUDOR ® products are nonmechanical devices
  • Is guaranteed for the lifetime equivalent to that of the drainage system in which it is installed.
  • Requires no specialist installation - can be installed by semi-skilled workers.