SWIRL DIFFUSERSDRS SERIES

Quality and e!ciency without compromise

Weltech Business Centre - Ridgeway - Welwyn Garden City - Hertfordshire AL7 2AATel: 01707 871526 - Fax: 01707 871 527 - email sales@jprservices.co.uk - www.jprservices.co.uk

Application:The DRs, DQS, DCS and DSS series offixed clr.ular swlrl

ditfusers have been desiqned to provide cooled orwarmed airto awide range of comrnercial app icallons.

A high levelol induction can be ach eved due to the ang € ofthe swi defeclion bldd€s afd the r€lat v€ fr€e area of the dltfuserTemperature and v€locty differeices betw€en supplied and room airafe therefore quickly m nim 5ed.

Th s seres of diftusers can ako b€ used for extractapp icatlons.

Description:A circular array of deflection blades are pressed nto a circular

Nominalsize s deterrnined by the d ameter ofthe dtfuser neck,which is also the diameterolthe swlrloutlet pattern

optons include circular or sqlare overa lformat, wilh orw thout a 'be lmouth' diflusion collar.

lhe djffusion colar (DR5/DQS)is desgn€d to lncreare thed tfuser's'grip'on the airoutet pattern and mprov€ coanda (ce lingetfect).Ihis option is more suitab e Jor applcations where coo €d a ris supp €d.

Th€ difluser can ako be supplied wilh a flush lace (Dcs/DsS).This oplion improves lh€ downward sprcad oflh€ a r outlet patiernand is more sujted lo app icauons wherc wamed alr is supplied.Th€ DRt DQS, DCS afd DSS se es can be supplled w th a side entryplenum, with orwithout perfoGted spigot damper or with a topentfylransiton reduc€L Large sizes ofthe transition reducerincorporate a perforated a r equalisation plate.

A comprchensive ranse ol fominalsizes ar€ available.Alveuons €xcept DRs arc avalabe nnomnald lameters l25, l60,200,250,315 and 400mm.

Ihe DRSOOAE type is dlso ava lab€ in nomina diameters 63,80and 100mm.The DRSo0EE lpr ng clip fx ng 9pe is avaiiable on y jfthese lrtler sma ler szes.

fixing:the DRS, DQ9 DCS and DSS series are suirable fof insta lation

at helghts ol betv\r€ei 2 5m and 4m from floor eve.The d:ffuser can be Jitted d recryro su iable du(work or to

sid€ entry plefum or transition reducer Th€ plenum or red!cer is tobe fixed vla support rcds orwir€s to suitable siructuG supporr.

Ih€ diffuser cai also be lxed with (rews or riveis dir€ctlythrough the ne.k, orwth a centralsoewio matching plenum or

Sma €r szes can be supp €d with spring c ps alowlfg thediffusers to be tx€d dir€crly nto a suitably supported rigid pan€1.

Dlfiusers arc supplled powder coated whit€ (RA19010) q oss asnandard l\4att finish is available at no extla cost.Other RALcoloursare avaiab e on requ€n.

J

Desiqn arran9e5 Reserued

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DRSOOCEDNSASRE

3 1 53 1 5Clrcu arfixed swirldiff!ser with dilfusion collarNominaldiam€ter 315mm with central screw fixing to side entry p €numMono blad€ damper in 250rnm diameter plerum spigotDiflusef powder coated white RAL 9010 g oss finish

I . 5ERIE5 2 . STYLE 3 - CORE 4 - ACCES50RtE55.ARRANGEMEN] 6 . F I X | N G 7 FINISHD R

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DifiusionCollarSquare WithDiffusioncollar

Square With

Special

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01 Special

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ExternalSwirl

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Neck FixingcentGlScrew FixingSping Clips(DRs00ESizes 63, 80And 100on Y)Special

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RAL 9O1OGlossWhit.oRAL9OlO

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1 .SERLES2 - LtNtN6 3'INSTALLATIONI\4ETHOD 4-ACCESS0RtES 5,ARRANGEI\4ENT6 - SPIGOTTYPE7 - 5 P | G o T

DIAIVETERD

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LinedUnlinedSpecial

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supports ForDrop Rods5pecial

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cord opeGtedI\4onob ade DarnperCord opeGtedl4onob ade Damper (ManBack)Interna ly Paint€d [4attB a c kSpecial

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SupplyExtract

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RoundrideEntryRound'topEntrySpecial

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1 5 02002503003 1 5280225115

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Deei9n Change5 Reseryed

, DD l

, o l

lXiS type

, D

tr--- E --r

DQS Upe

o.r<7-?1 . TF fa?4r T = M . - T r . r y 4

@lDGS type

NlAUN NAUN

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NVa7aN

@H0.0046 178 178 200 198

44

0.0078 150 t98 198 250 248

0.0128 200 248 248 300 248

0.0197 250 298 298 350 29S

0.0307 315 398 450 398

0.0506 400 594 44 570 s94 100

Design Chanqes Reseryed

IJ-,I

oDRSOoA - (without mounting springs)DRSOoI - (with mouting springs)available in these sizes only

' D l 'l'ffitF--T---l

275 255 128 125

220 t3 t 150

305 200

375 3 t 5 t3 t 200

415 355 135 250

500 405 144 315

575 400

600 410 180 400

550 435 400

500 3S0 315

425 330 n/a 315

DNSO_T type incoDorai€s perforated equalkation plate on spigotdiameteB 160 and la.ger

Desiqn Changes Reserued

Design Charger Re*fred

-50 0,050 3.0 7 0.5 l 870 0.070 3.6 l 0 0.7 2180 0.080 4.1 ' lz 0.8 24100 0.100 5.1 t9 1 . 1 28120 0.120 27 1 . 3 32130 0.130 1.4 34t() 0.140 7.1 37 1.6 35't50 0.150 7.6 42 1.1150 0.150 8.1 47 1.8

0.075 2.4 0.6 l 6

100 0.100 3.3 9 0.8 22123 0.t25 4.1 t.t150 0.150 4,9 t9 1.3 30160 0.160 5,2 1 . 4 32180 0.180 5.9 z7 t.6 34200 0.200 6,5 33 1.8 37220 0.220 7.2 39 2.0 39240 0.240 7.8 47 2,2 N100 0.100 2.0 3 0.5 t5125 0,125 2.5 5 0.8 z0150 0. t50 3.0 7 1.0 24175 0.t75 9 't.2

200 0.200 4.0 12 1 , 4 30220 0.220 4.3 14 1.5 32244 0,240 4.7 1 7 1.7 34260 0.260 5.1 1 9 1,9 36280 0.280 22300 0.300 5,9 26 2.2 39

t'

Pedonnance figures are for diffuser only and assume supply air temperature i2 to +15 deqees C relative to room rcmpenrure.Pressure drcp shown k statk pressurcdrcp for diffuseronly (without damper).llrcwvalue is measured horizontally with hoizonratdistribution setting to tefiiinal velocity of 0.5 m/s.AIINR ratings based on room absorption of8 dB, dampeB fully open.

Design Changes Reserued

JPR Services - Weltech Business Centre - Ridgeway - Welwyn Garden City - Herts AL7 2AATel: 01707 871526 - Fax 01707 871527 - email sales@jprservices.co.uk - www.jprservices.co.uk