There are many examples of pungent or harsh environments which are annoying, harmful or potentially dangerous to humans. Examples include septic or chemical toilets, methane build-up from solid waste or sewerage systems and mouldy air beneath homes. The concentration of pungent or chemically active gases can be reduced by the installation of natural ventilation systems.

These systems require:

1. A turbine ventilator which can withstand the chemicals present in the gaseous environment.
2. Easy entry of clean, make-up, air to the system to replace the unpleasant air removed by the turbine ventilator.

TURBINE VENTILATION ­ Sewer Vent

VENTILATION OF ACIDIC VAPOURS

Ventilation of harsh gaseous environments, using turbine ventilation, is difficult to achieve with conventional ventilators. Acidic vapours can react with plastic or steel bearings and cause the failure of the ventilator.

Sewer Vent has been purposely built to withstand most acidic vapour flows. It uses two precision stainless steel bearings (608zzss). The turbine is manufactured from strong ABS Polymer alloy which is inert to the effect of most acids.

A LARGE RANGE OF APPLICATIONS

Sewer Vent has been used in a variety of applications including eco-toilets, community toilets, portable loos, sewers, pits, drains and attached to fume cupboards.

Anywhere the environment is contaminated by pollutants and chemicals.

Sewer Vent was design in Australia by Edmonds. It has a 150mm throat which, while smaller than conventional domestic turbine ventilators, is compensated by its vertical vane design. This enables efficient operation at low wind speeds - when most ventilators are not spinning.

Sewer Vent has the following features:

1. Fits 100 or 150mm piping. The 150mm throat fits normal 150mm PVC piping and also fits 100mm piping by virtue of a 150 to 100mm reducer. The reducer is available from Edmonds.
2. Blends with the environment. The Sewer Vent design blends subtly with most surrounds.
3. Robust construction. The special polycarbonate composition cannot rust or corrode. The internal bracing is reinforced to prevent stress cracking.
4. Withstands severe wind and rain. In independent laboratory trials, Sewer Vent withstood wind velocities of 240km/hr and satisfied the Dynamic Rain Penetration Test.