Impulse Ventilation

introduction Ventilation in applications such as fully enclosed car parks, vehicle bays and metro stations provides an exchange process of air, bringing fresh air in, thoroughly mixing the air, then extracting harmful pollutants, in particular, carbon monoxide, nitrus oxides, fumes from vehicle fluids, oil and other fuels. The need for ventilation is of equal importance to smoke dispersal in the event of a fire, safeguarding lives by providing smoke clearance for occupants to escape, and enabling access for fire fighters to control fire risk. For us, the challenge is always to bring product beyond...

JetVent: the principle The impulse ventilation system is based on a number of small, strategically located high velocity fans in place of the distribution ductwork traditionally used in car parks. the reduced need for, or complete elimination of ducting, the resulting reduction in system resistance means they are typically smaller and consume less energy. Impulse fans operate on well proven tunnel ventilation principles, producing a high velocity jet which thrusts against the air in front of the fan imparting momentum to all the surrounding air through entrainment as it diffuses. The volume of...

features & benefits JetVent has two sizes, 315mm and 400mm diameter and 10 model variants, satisfying the majority of customer requirements. By providing Uni-Directional or Truly reversible airflow, JetVent offers flexibility to specific customer requirements. design appeal By adding momentum to the air, JetVent thrusts air towards desired extract points to ensure stagnant fumes and smoke do not settle. This principal eliminates the requirement for ductwork and ancilliary equipment within applications, as the JetVent effectively transfers the polluted air. By eliminating ductwork from an enclosed...

impelllers Adjustable pitch aerofoil section impellers provide a long lasting robust construction for ambient and high temperature applications. rigorous testing As you would expect with Elta Fans products, JetVent is independently tested to meet the exacting standards of EN 12101 – 3:2002 providing a quality product that operates in fire / smoke conditions. ingress protection A minimum protection to IP55 on fan electrics improves reliability and ease of cleaning by means of pressure washing components. An external pad lockable Isolator switch to IP65 standard is mounted to the outside of the...

market applications Elta Fans has a wealth of experience and knowledge, dedicated to understanding your particular needs. Whether your criteria is optimising space, specific performance characteristics, low noise levels or a high specification finish, the JetVent range continues to enhance Elta’s reputation in the design and supply of specialist ventilation products. Operating in typical applications such as fully enclosed or open sided car parks to assist in general ventilation and smoke extract, to Distribution warehouses, Vehicle Bays and Metro Stations, ensures the optimal solution to the...

specification The JetVent car park extract range comprises 315mm and 400mm diameter sizes, Uni-directional or Truly Reversible airflow, two speed or single speed motors, with ambient or high temperature smoke conditions to European Standard EN12101 – 3:2002. casing The fan casing and integral mounting feet for mounting the unit to the car park ceiling provides a long lasting robust construction. All parts are manufactured from 4 mm heavy gauge mild steel sheet, roll formed and welded, then hot dipped galvanised to BS 729 after fabrication. impeller Adjustable pitch aerofoil impellers are provided...

performance & sound data JetVent - Uni Directional Product Code Thrust Newtons Volume Flow Rate m3/s High temperature 300°C for 2 hours Product Code Thrust Newtons Volume Flow Rate m3/s JetVent - Truly Reversible Product Code Thrust Newtons Volume Flow Rate m3/s JetVent - Truly Reversible High temperature 300°C for 2 hours Product Code Thrust Newtons Volume Flow Rate m3/s † Denotes JetVent Two Speed Models *dBA figures are free field sound pressure levels at 45° to the inlet/outlet

electrical data JetVent - Uni Directional Product Code Speed r/min Supply V/Ph/Hz High temperature 300°C for 2 hours Product Code Speed r/min Supply V/Ph/Hz JetVent - Truly Reversible Product Code Speed r/min Supply V/Ph/Hz JetVent - Truly Reversible Product Code Speed r/min High temperature 300°C for 2 hours Supply V/Ph/Hz ** Denotes Two Speed Tap Wound Motor All starting currents are quoted as Direct On-Lin

WIRING DIAGRAM FOR TWO SPEED SINGLE WINDING MOTORS SWITCH ISOLATOR

dimensional data JetVent - Uni Directional Product Code JetVent - Truly Reversible Product Code

Elta Fans Ltd 17 Barnes Wallis Road, Segensworth East Industrial Estate, Fareham, Hampshire, P015 5ST, United Kingdom. Visit: eltafans.com e-mail: [email protected] Applied Technology: Building Services: