Flexible Trunking
Under normal gasfreeing operations our range of fans does not require flexible ducting to perform its function effectively. Nevertheless, in certain tasks such as ventilation of void spaces or cofferdams, one might need an airflow to be directed around obstacles. Dasic can provide a lightweight, yet rugged and hard wearing ducting to solve these problems.

The ducting is constructed with a solid wire helix to maintain its diameter and ensure an effective airflow, even when used in the most restrictive of locations.

The helix is stitched to a heavy duty vinyl rubbing strip to minimize damage to the ducting during use.

To prevent any risk of static build-up during gasfreeing operations the entire lenght of ducting is electrically bonded. To ensure a secure and stable mounting each lenght of ducting is fitted with a Top Adaptor which is designed to allow the ducting to be suspended in a deck opening while the Jetfan unit is mounted inside the Top Adaptor.

The end of the ducting is fitted with a rigid stainless steel ring to ensure the diameter is maintained. The ring also provides a fixing point for an intergral lifting rope supplied to assist removal of the Ducting. 

Our standard Jetfan unit and Top Adaptor is designed to suit a 318mm stud bolt deck opening- alternative sizes can be supplied to match your requirements.

Performance Specification:

Ducting Material:	Vinyl coated fibreglass fabric with a PVC coated spring steel helix.
Top Adaptor/joining rings and end section:	Stainless steel
Nominal Diameters:	300mm
Lengths:	Upto 20.9m as a continuous lenght, thereafter joined as required.
Weight:	approximately 1kg/1.0m
Packing specifications:	As a guide, 1* 20.0m lenght is supplied in 1* Case 50*50*60cms, weight 23 kgs.

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