SERIES GX 25-3-2013 SERIES GX - Gilberts Blackpool

1 & AIR VALVES 3 NOV 2012 PUBLICATIONF eatures- Fully Adjustable Core- Excellent Pressure Drop and Noise Quick, Easy Valve Inclusive Mounting Steel Construction with Durable- White Stoved Fire Rated Valve GXAir Extract ValvesIntroductionPerformanceDataSelecti onProcedureGilberts GX SERIES of valves have been designed toprovide a compact, clean and attractive means ofextracting stale air from bathrooms, toilets,washrooms and kitchens, from sheet steel and finished indurable white stove enamel they will cater forrelatively high pressure losses at comparatively lowsound levels permitting economic selection at highair volumes and screw in bayonet type fixing arrangementfacilitates fast installation and removal from themounting ring supplied to allow for core adjustmentor valve cleaning without affecting the valve foam gasket fitted to the valve body also ensuresan airtight EXTRACT VALVE range comprises of three unit types.

2 Type GXStandard valve design available in five sizes, all complete with mounting GXD Improved valve design to provide smoother air flow characteristics and lower noise in five sizes all complete with mounting GXF Combination fire damper and extract sizing and selection Performance Data Tablesfor each respective size and type are provided onthe following pages. For any given volume thepressure loss characteristics can be determined atthe intersection with the core positioning lines. Thecore position is expressed in terms of the number ofmm, inwards and outwards, from its central positionas shown in the dimensional (dba) ratings are indicated in 5db Bandsacross the core established the positions where units are tobe located, use the Performance Data Tables tocheck the volume per unit against the maximumacceptable pressure loss and noise units should be sized with the core in itscentral position to allow for adjustment andvariations on adjustment is achieved by simply rotating thecentral core inwards or outwards on its spindle andlocking into its set position using the holding nut atthe rear of the valve assembly.

3 The GXF Fire RatedValve functions as a normal extract valve, sharingthe same basic construction and performance as theGXD, however this unit also incorporates a springloaded core and fusible link mechanism. Astemperatures reach 70 C the fusible link will meltallowing the core to spring to a failsafe closedposition providing a 2 hour rated unit as tested inaccordance with BS 476 part 20 GXAir Extract ValvesFeatures- Fully Adjustable Core- Excellent Pressure Drop and Quick, Easy Valve Inclusive Mounting Steel Construction with Durable- White Stoved Fire Rated Valve 100 GXD & GXF 100 Volume flow l/s34 5102030 40 50100 Position mm-12 -9-6 -3 0 +3 +6 +9 +123002001005040302010102030 40 5010020030030201054321 Pressure reduction mm vpVolume flow m3/h35 dB (A)30 dB (A)25 dB (A)

4 Pressure reduction PaVolume flow l/sPosition mm-930030 Pressure reduction mm vpVolume flow m3/hPressure reduction Pa-6 -3+3 +6 +9 +12102030 40 50 60 70 80 1001502502001501009080706050403020103456 789102030402520151098765432135 dB (A)30 dB (A)25 dB (A)GX 125 GXD & GXF 125 Volume flow l/s34 5102030 40 50100 Position mm-12-9 -6 -3 0 63002001005040302010102030 40 5010020030030201054321 Pressure reduction mm vpVolume flow m3/h35 dB (A)30 dB (A)25 dB (A)Pressure reduction Pa40 dB (A)3400 Volume flow l/sPosition mm30030 Pressure reduction mm vpVolume flow m3/hPressure reduction Pa-12 -9 -6 -3+615 2030 40 50 60 70 80 1001502502001501009080706050403020104567 89102030402520151098765432135 dB (A)30 dB (A)25 dB (A)2003000+950 60 70 80 PerformanceDataGX 150/160 GXD & GXF 150/160 Volume flow l/s34 5102030 40 50100 Position mm-12-9 -6 -3 0+3+63002001005040302010102030 40 5010020030030201054321 Pressure reduction mm vpVolume flow m3/h35 dB (A)30 dB (A)25 dB (A)

5 Pressure reduction PaVolume flow l/sPosition mm30030 Pressure reduction mm vpVolume flow m3/hPressure reduction Pa-12 -9 -6 -3+615 2030 40 50 60 70 80 1001502502001501009080706050403020104567 89102030402520151098765432135 dB (A)30 dB (A)25 dB (A)200300050 60 70+3 Volume flow l/s5102030 40 50100 Position mm-20-15 -10-502530020010050403020102040100200 30040030201054321 Pressure reduction mm vpVolume flow m3/h40 dB (A)35 dB (A)30 dB (A)Pressure reduction Pa305010002002015105 Volume flow m3/h50100 Position mm30020025015010050607080904030201020409 02001002010152530567894321 Pressure reduction mm vpVolume flow l/sPressure reduction Pa3050 60 70 80200300 400 500100025 dB (A)30 dB (A)35 dB (A)-12 -6 0 +6 +12 +15GX 200 GXD & GXF 200 PerformanceDataType GXDCO verall SizeBAperture SizeA+_Core PositionDIMENSIONAL DATATYPEABCDW eight (Kgs) SizeBAperture SizeACD+_Core PositionDIMENSIONAL DATATYPEABCDW eight (Kgs) SizeBAperture SizeACD+_Core PositionDIMENSIONAL DATATYPEABCDW eight (Kgs) GXDType GXFO rderingSpecificationFIXINGQ uick, quarter turn, screwin fixing into mounting Finish:Standard finish for all units is a Stove Enamel Weight (Kgs) Dia Fixing HolesBOverall sizeANeck SizeCType GX,GXD andGXFM ountingRingNUMBER REQUIREDSIZE (DIA)GX2150 SERIES :GX, GXD, GXFG ilberts ( Blackpool ) Ltd reserve the right to alter the specification without notice.

6 For our latest product data please visit informationcontained in this leaflet is correct at time of going to press Office and WorksGILBERTS ( Blackpool ) LTDG ilair Works, Clifton Road, FY4 : (01253) 766911 Fax:(01253) 767941e-mail: GXAir Extract Valves