Installation

Simple installation procedures are supplied with every ventilator which is manufactured in preformed and predrilled format to ensure ease of assembly. It is important that the roof cladding/steelwork has sufficient clearance so that the ventilator throat is not restricted. Zefyr ventilators leave the factory in 'knocked down' form in order to reduce the cost of packing and shipment to a minimum.

Weathertightness

All Zefyr ventilators are proven and tested to withstand all weather conditions ranging from monsoons in the tropics to the icy rains of the northern hemisphere.

Performance

All SRV's are structurally and aerodynamically tested to produce the optimum coefficients of discharge to ensure maximum performance/minimum cost installations.

Maintenance

These ventilators require minimum maintenance once installed.

Birdguards

Available as an optional extra in galvanised, pvc coated galvanised steel or aluminium, or to suit customer's requirements.

Controls

All units can be fitted with dampers to enable maximum control of the ventilator rates. The method of control can be manual cord or remote electric or pneumatic depending on the customer's requirements.

Sizes

SRVs are manufactured in 250 mm and 500 mm throat sizes,and in 3 m standard lengths the units can be installed as individual ventilators or joined lengthways to form one continuous run.