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Ventient Wall Vent

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Proctor Ventient Wall Vent

Wall vent with passive temperature sensing flow control

Product Description

Ventient Wall Vent is precision manufactured AES plastic wall vent with passive temperature sensing flow control.


Improvements in construction create buildings that are more airtight than previously, with the result that infiltration or leakiness is no longer providing a pathway for make-up air for exhaust systems.

Although many building are complying with building code requirements by having sufficient operable windows, changing lifestyle patters, concerns about noise and security and generational differences mean that ventilation from open windows tends to be infrequent.

Unlike conventional systems such as operable windows or louvres, Proctor Ventient Wall Vent can get on with the job of providing fresh air circulation regardless of occupancy.

As part of the total ventilation system Proctor Ventient can provide continuous ventilation to spaces even if they are unoccupied and is perfect for  student accommodation, hotels, age care, healthcare and educational facilities.

Ventient is an ideal solution for residential buildings such as modern air tight homes and medium or high rise developments as modern lifestyles mean that occupants are unable to mange purge ventilation and often  return home to a stuffy environment.


The Ventient Wall Vent is installed into a framed wall in accordance with details on page 2. This wall vent can also be used in floor applications protected by a cover grill.


Exhaust Make-up in Lieu of Supply

Where it is not possible to meet the code requirements for natural ventilation, or where the design preference is for a specific air change rate and 24 hour provision of fresh outside air without leaving windows open,  Ventient, in conjunction with low energy, mechanical extract ventilation can provide or contribute to supply ventilation as required when calculated in accordance with AS1668.2.


General Exhaust Make-Up Air

AS1668.2 draws to the attention of designers that increased air-tightness of modern buildings requires consideration of sources of make-up air.   Make-up air drawn through gaps and service penetrations does not meet the requirements of Clause 2.3 within the standard and can lead to the loss of amenity in the enclosure.

Ventient Wall Vent could be an acceptable permanent natural ventilation opening as required in Clause 2.3.

Sample Specification

Install Proctor Ventient Wall Vent with shape memory alloy thermal actuator in accordance with the user guide.

Optional features:  (from table 2)

Product Code: VENTIENT WV

SMA Temperature: A (12°C) / B (18°C)

Colour:  Ivory / Bronze

Ventilation volume at ⊿P 12Pa: 18.4 L/s

Table 1 Performance 
Open area (A)170.0cm²
Ventilation Volume (Q) l/sQ=16.5(⊿P/9.8)0.54
Acoustic RatingsThe Ventient wall vent is not acoustic but can be used in conjunction with an acoustic duct or faced with a sound absorption panel.
MaterialHighly UV resistant AES plastic
Ventilation volume (at ⊿P)12Pa: 18.4 L/s

30Pa: 30.2 L/s

Standard Sizes and Colours 

Interior UnitW 393mm x H 158mm
OpeningW 365mm x H 130mm
Table 2 Features
Shape Memory Alloy (SMA)

Thermal actuator temperature set points*


Option A

Fully Open:   > 24°C

Closed:         < 12°C

Option B

Fully Open:   > 26°C

Closed:         < 18°C

Mesh to resist vermin, insects and embers


1.5mm wide mesh integrated into the exterior cowl.

Where the exterior cowl is not used, a mesh can be fixed to the rear of the interior unit.

Air filterNot fitted as standard. Optional extra
 Manual OperationClosed  / Auto / Open
Additional acoustic attenuationAvailable option with a cover
MaintenanceInterior cover can be removed to clean the device.

Interior Unit Dimensions


External Cowl Dimensions

Typical Installation

*Note that the degree of opening may not always reflect the exterior temperature, as this will periodically differ from the ambient temperature where the SMA actuator is located closer to the interior. There is also a lag in adjustment to sharp changes in temperature.

The details supplied here are based upon good practice and currently available information. Advice regarding this product should be taken as a guide only. We reserve the right to change product specification without notice so please refer to our website for the latest version of this document.  Please contact us to discuss your project and any technical enquires.