Productrange high pressure by-pass stations, medlLrmpressureby pass stations start-|,rp/ by-pass stations, steam converson slat ons pre heater control systems pressurecontro valves,fow contro valves feedwater conlro vaves, discharge and b ow down control valv-os m i n i m u mf o w s w t c h n g / c o n t r o l v a l v e sh, i g h - p r e s s u rseh ! t o t f v a v e s ba lype conirolvaves, blow'down valves and programmed control high pressurelevel swilch, h gh-pressure evel meas!rement converter iurb ne by pass syslern electrlca actuators, pneumatc actuators e ectro-hydraulic actuaiing systems o x y g e nc o n t r o lv a v e s ,g a s c o n t r o l v a l v e sg, a s q u c k - c l o s i n gv a v e s healrngvaves, therrnostaticvalves,manua control valves corr]missionng, service, nspecl on

Areasof application . p o w e rs t a t o n t e c h n oo g y ,e n v r r o n m e n t a i t e c h n o l om g ye,t a l l u r g i c a l t e c h n o l o g y . paper and pulp industry chemica and pelrochemica ndustries . oxygen p anrs

Controlvalve HIGHVALVE3OO Th s valveas a basisseres has been designed for a most al controliasks of power staliontechnologyand p ant engineerng.Besdes the c assicalmediaol powerstation technologylikecondensate,steam,nalura gas and oi, ihis vave s iherelor€aiso used lo contro styrene,propylene,hydrogen,butadene,n butane,etc. Forthe ppeine conslruclionwe can supplyths serieswiih a fire-safecedificaton to 836755. DvGw-lestedvalvesand seaing systemswith belows and safetyglandhave also been n use lor years, Specification: . The cast body has a very ow zetavalueand arge re ief spacesaboveand beow the seal. . The base materalof the body s GS C25N. Higheralloyedmaleriasand materalsas per ASTN/standardarc avalable. . Connectng llangeas per D N/ANSIor BW connectionsof suitabe materal for the p pe ine are standard. . Indvidualy configureds ngleor mulistagetr ms wh ch can also be pressurebaancedare responsbleforthe controlquaityand largeconlro ratos. . Electrc, pneumalicand hydraulc drivesmanufaciuredby us or äny commercialy can be ftted. Al unts are suppied tested avalabledrivelrom oiher manufaciurers

Nominal diameters DN ]5 - DN600 Nomjnal pressure ratings PN 40 PN 250 Operating temperatures approx 200'C to +500'C

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Control valve HIGH VALVE450 Th s HANNEMANNcontro va ve s used when the criteron s precse and ow no se contro n the h ghestpressureand temperaiureranges.Thisvalvels aboveal lsed in pow-.rstationtechnologyon lhe h gh pressurefeedwatersideand ln the ive slearn area n lhe form of pressureconlro vave, bow down and dischargevave, stad-up/bypass staton and tlrbne by pass. ndivdua y confguredtrms enslre a pertectsystem so uton ior each process. Specification: . The body s manufacturedn ange or z-shapedesign usingforgedmatera. . The gobuar Shapeofthe boclywith uniformwa thckness preventsunacceptabe h gh fringefbre stressduringtemperatureilucluaions . We d end connectons are se ectedfrom nralerias whicha low a probemjree weldng to the ppe materia. Hermeucalysealng singe-sealpugs wth orwthout pressurereiei are lsed These tr rns conssling of a seatng bush nsertand a controlp Ugcan be qu ckly rernoved and overhaued n the workshop.Thereis no on ste work n the vave body Low nose pressurereductonby |rp to sevencontroiledpressurefeducng stages. Fixedstagesare completeyavo ded whereverpossb e, by us or any c and hydrauic dr ves wh ch are n part manufactured Electrc, pneLrmat can be ftted A unitsare supcommercalyavaiabe drivefrom other rnanufaciurers pled testedand adlusted Nominal diameters, in/out D N 4 0 D N 4 5 0 / u p 1 oD N 1 4 0 0 Design pressures/temperatures up to approx.350 bar and up to 620'C

Feedwater control valve HIGH VALVE 55O Ths classicalfeedwaterCV from HANNEI/ANNfor hgh'pressurebo ers has been workng reiabLyn many panis aroundthe worldfor decadesand has been recenty Downstreamfrom predorninantyspeed controledpumps,this valvecontrolsthe feed waterllow to the boier with mnrnum pressureoss Specification: The body wthsiands h gh p peine forceswlhout unpernritteddeformatonby way of The body s avaiabe n highlywearresistantCrN Mn stee ior eroson'riskareas. The doub e p sion trim can be quicky removedand overha!ed An eco ensured nomca overhalrwthout on s te work is lheTefore The requred controlforcesaTevery ow n comparson to othervave typesof th s nexpensve and ow powerdrves ike pneumaticrnembranetypesfu y suffice. Nominal diameters DN65 DN350 Nominal pressurc ratings P N 1 0 0 - P N6 4 0 Operating temperatures approx.10"C 350'C

Oxygen control valves

Gas controlvalves

Oxygencontro vaves are used n the ron and stee industry,

Gas contro vaves are usedfor power controlof gas turbines(e.9. n G&S planis).

Basedon the bodes of lfre 200 and 300 series,thesevalvesare designedand manufacturedlor lhe specal requrementsof oxygenplants.Th€y are uslrälyequpped wth

Theyare oftenequippedw th additona quick c ose functons. A standardgas quck cose vave s used as a secondaryshut olf

pneumaticactuatorslor exposon protectionreasons, Specitication . Cast body of Cu-Alaloy wlh flangeconneclon Snge seat and doube seatdesignsare lsed . The trim des gn s adapledto complyw th the specf c requirement. Varianlswith pressureequalisedthrotte bal and/or hermetcallyseaiingcontro bals with soft rnateralcoat are supp ied

Specification . The flow nomna ine ofthe conirolvalvescompies wiih EC 534 with reducedtol€ rancerange Ths alows an exactsetrng of lhe gntion poinl and the directpower conlro ofthe turbine, . The controlbalis pressurereleved.Smd ow cost drivescan thereforebe used. The cenlrallubricaing o syst€rnoftheturbne can also be usedfor driveswtchng. . The vaves are hermetcalyseaed to the outsde and in the valveseat. Leakage

. Thesevalvesare shpped freeofgreaseand oi n accordancewrththe requrernents . The quick c ose funcilon s trggered by the ntegratedsafetydevce n the eventof Nominal diameters D N 1 5 D N5 O O Nominal pressure ratings P NT 6 1 6 0 Operating lemperatures

20'c - 80"c

mafunclion,Closinglime < 0,3 s Nominal diameters DN 25 DN 5OO Nominal pressure ralings P Ni 6

160

Operating temperatures 20'c

280"c

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product sampry&ffi TUröineby-pass system A tlrlclne by-passsystemas per TRD421is achievedby way of combiningthe HIGH VALVE450 ser es pressure reduction valve with . a downstream operating steam desuperneater . a safety quick acling lunct on . a hydraulicor pneumatlcactuator and the assoca_ . and a component-certilied steamlestinglaciliiy("DampfprÜfstock') ted safetydevices. Specification . operating steäm Jor the downstream desuperheater is taken from the pressure reductionvalveafterihe seat. A separate open/close valve wlih the necessaryfunction logic can be dispensed wth completely. coolsthe steamto condensatorlemperature The operatingsteamdesuperheatef without endangering the downstream p peline by excess waler' Ratios n excess of 35yo water to steam conlent can be contro led w thout prob em. The mulustagepressurereductionvalveand the operatingsteamdesupemea€r work exiremelyquietlyand fulfilal curr€ntlmll valueswthout costlysecondary the hydraulcs/pneumatics,is manulacturedby us The completesystem, ncLuding LJnilsarc suppliedtesied and, f required,can be installedand commissionedby our specialststafi.

Nominaldiameters,in/out DN40 DN450/ upto DN1400 Designpressur€s/ temperatures 350bff andup to 620'c upto approx.

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WaldemarPruss ArmaturenfabrikGmbH

Landstraße 261 Schulenburgor D-30419Hannovef

261 Schuleilburger Landstraße D-30419Hannovor

Phome+49 (0)5112'79 86-0 Fax+49(0)5'112-7986-86 [email protected]€ htip:/wwwpruss-hannemann,de

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