DUCTGARD - Gilberts (Blackpool)

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Test DataFire TestsAll fire tests were conducted by the WarringtonResearch Centre to BS476 Part 20 1987.This standard describes the performance ofstructural elements under fire conditions. It wasdecided to mount the unit in the face of a 3m sq.vertical furnace, and subject it to the testdescribed.Test DescriptionThe test specimen was fixed to a brick wall builtwithin a framed lined with refractory concrete atthe test laboratory. This frame was thenmounted such that the complete assemblyformed the front vertical face of the gas firedfurnace. The furnace was provided withthermocouples arranged such that they wereevenly distributed over the exposed face of thetest construction and with their hot junction100m from the nearest part of the construction.Test ResultThe damper assembly operated satisfactorilyand retained its integrity for the 240 minuteheating period, during which time there were notany significant gaps in or around the assemblyto permit the passage of flames.Air Velocity AgainstPressure DropThe graph opposite has been formulated to givean indication of the pressure drop expectedthrough a fully open damper in relation to ductair velocity.Differential Pressure (Pa)Temperature - Deg C10009876543210098765432109876543Standard Time - Temperature Curve Of BS476 Part 20 198712001100100090080070060050040030020010000 20 40 60 80 100120 140160 180200 220 240Time - minutesSpecified Furnace Temperature2Airflow Blade Leakage AgainstDifferential PressureThe graph opposite illustrates the maximumleakage obtainable when the damper is in a fullyclosed position under ambient temperatureconditions.DuctgardLeakage underFire Test(Unit Tested 1m 2Face Area)Differential Pressure (Pa)1100009876543210009876543210098765432 3 4 5 6 7 8 9 10 2 3 4 5 6 7 8 9100Air Velocity M/S21312 3 4 5 6 7 8 9 10 2 3 4 5 6 7 8 9100Leakage Rate L/S
Operation &MaintenanceInstructionsOperating and MaintenanceInstructionsAll Ductgard units are tested beforeleaving the factory but should be testoperated prior to commissioning toensure correct operation. Quick andeasy testing and reset procedures foreach operational mode are detailed ontheir respective data pages in thisbrochure. In addition to their initial testhowever, being a fire safety product, itis also recommended that the units aretest operated regularly thereafter . Testfrequency will depend upon thedamper environment but, in theabsence of any other information, amaximum interval of 6 months isrecommended. In addition an annualvisual inspection is also advisable topermit cleaning and removal of anyairborne contaminants which mayaffect the dampers operation.NoteFor safety the damper blades shouldbe closed on Modes 5,9, and open onmodes 6,10, before personallyapproaching them forinspection/cleaning.Since the drive, linkage, motors andelectronic components on the ductgardunits are ‘sealed for life’ there shouldbe no requirement for periodicmaintenance and spares are notnormally required. Items such as resetlevers and test keys however can bemisplaced over time. In this eventreplacements are readily available fromHead Office.Trouble-ShootingAll Ductgard units are both inspected and tested before leaving our premises. Manufactured using maintenance free ‘sealedfor life’ components there is no reason why they should not reach site in full working order and continue to function wheninstalled providing that our fitting and wiring instructions have been adhered to. In the event of operational difficulties pleasecontact our Head Office for on-line guidance and advice.Telephone: (01253) 766911Ductgard units carry a full 1 year warranty from the date of delivery for all parts and labour.<strong>Gilberts</strong>Damper,Smoke andFire ControlRangeSmokegardDoor, Wall and PartitionMounted Smoke and FireDampersSeries 52Smoke Evacuation DamperSeries 50/51Fire Smoke DampersFiregardCurtain Fire DampersAirgardVolume ControlDampersSeries RDIris Duct Damper14
Page 1 and 2: DUCTGARDDuct MountingSmoke andFire
Page 3 and 4: The Gilbert’s 2007 Ductgardpresen
Page 5 and 6: Mode 5DescriptionMode 5 is a fully
Page 7 and 8: DimensionalDataDampers OnlyDampers
Page 9 and 10: InstallationFramesHEVAC Installatio
Page 11 and 12: Modes 9/10Mode 9 and 10 Ductgards i
Page 13: AncillaryItemsGilberts range of anc

DUCTGARD - Gilberts (Blackpool)

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