Itar 36 Tubed OD: 0.2-6mm, WT: 0.02-2mm

Alloy 600 ndi zinthu zodziwika bwino zogwirira ntchito zofunika kutentha komanso kukana kututa. Mphamvu zabwino kwambiri za iMoy zimapereka mphamvu kwambiri komanso makina abwino. Kukana Zabwino Kwambiri, makamaka m'malo okhala alkaline, ndipo imatha kugwiritsidwa ntchito pa kutentha kotsika komanso kwambiri.

FSTEOLLOY C2000 ikupezeka mu mitundu yosiyanasiyana ndi makulidwe amtunduwu, mtundu uwu wa chromium-molybdenum aroyoy amadziwika bwino chifukwa cha mphamvu zake zazikulu komanso kukana.

Montel K500 Nickel-Copper Stroes zimawonjezeredwa ndi aluminium ndi titanium
Sch40 Monol 400 chitoliro chimasankhidwa kukhala nambala ya Werkstoff 2.4360 ndi N04400. Chipika 400 chimadziwikanso kuti Monil Anoy chitoliro cha 400, Monl 400 Pipe & Nickel Chitoliro 400.
Incoloy 800h chitoliro chokhala ndi temple wambiri

Aloy 800 wedy wedy timakhala ndi mbiri yolimba mu malonda popanga mitundu yosiyanasiyana ya mitundu yosiyanasiyana ya makasitomala athu. Timakhala ngati infolisoy ma fronges omwe ndi odalirika komanso apamwamba kwambiri. Timagwiritsa ntchito ndalama zotsogola komanso makina apamwamba popanga assowm B564 SIMIL N08800 Stuliloy ma fronges 800.

Iswees osawoneka bwino kwambiri a sing'anga osawoneka N06600 ndi Astm B167 ndi omwe amapangidwa kuti apirire kwambiri ndikubwera ndi chitsimikizo chachikulu.

Chitoliro chachitsulo chopangidwa ndi bomba la carbon kapena alloy, mapepala, mawonekedwe, ku mawonekedwe ena omwe amatha kupanga ntchito (sinthani madzi oyendetsera mapaipi. Makamaka zokwanirazi zimaphatikizapo chipongwe chachitsulo (45 kapena 90 deg dend), tee, kuchepa (kuchepa kapena kutsika kwa excer), mtanda, chipilala, ma staker ndi etc.

Alosi uyu amagwiritsidwa ntchito kwambiri pamakampani opanga mphamvu ndi kukana kuwonongeka. Mapulogalamuwa amaphatikizapo a Hirers, akadali, mizati ya nthomba ya nthomba, ndi condhmes a ma acid acid; Machubu a Evaporatora, makeke a chubu, ndi mapepala opangira sodium sulfide; ndi zida zopangira Abietic acid popanga zamkati.

Kuwala ndi mphete ya chitsulo (kupangidwa kuchokera ku mbale, kapena yolumikizidwa) kupangidwira zigawo za chitoliro, kapena kuti mulowetse chitoliro cha sitimayo, misonkhano ina kapena pamsonkhano wina wophatikizika. Zowawa zimaphatikizidwa wina ndi mnzake, ndipo kumapazi polowera kapena kupukusa (kapena kumasula pomwe madotolo amagwiritsidwa ntchito). Chitani chitsulo chosapanga dzimbiri chimasankhidwa kukhala SS nyambo, amatanthauza ma mbengo omwe adapanga chitsulo chosapanga dzimbiri. Miyezo yodziwika bwino ndi Stadem ndi Asso A182 REPE F304 \ / l ndi 300

Nthawi zambiri amatchulidwa ndi tradeename astelloy C22 ndi Devolial Devokication STRAINE N06022. C22 ili ndi bwino kuvunda bwino komanso ma oxidation kukana, makina akuluakulu opanga kutentha kwambiri, komanso mawonekedwe abwino.

Nickel 200 Amalongosola Nickel 200 Malawi amakhala olimba, osasunthika, ndipo amaliza bwino. Kuphatikiza apo, Astm B564 SP52200 N02200 Zisoka zakhungu zimalimbana ndi kutengera ndale komanso zotsatsa, zimapangitsa kukhala bwino kugwiritsa ntchito zida zogwirizira.

Super Duplex S32760 \ / F55 ma flanges amapangidwa ndi kalasi yapamwamba kwambiri ya chitsulo chosapanga dzimbiri. Nkhaniyi ili ndi 24% chromium, 6% Nickel, 3% molybdenum, mkuwa, kugwedeza, nitrogen, chitsulo, chitsulo ndi sulucfure. ASMM A182 F55 Flange ali ndi mphamvu yayikulu komanso kukana kwakukulu. Ma flanges amapangidwa pansi pa ANSI Ba6.5, ANI B16.47 ndi miyeso ina yamayiko.

Chitoliro chosapanga dzimbiri 304 chitoliro cha chitoliro chomwe chimagwiritsidwa ntchito popereka chosapanga dzimbiri chosakanikirana

Kuchulukitsa kwa titanium ndi pafupifupi 60% yomwe ya chitsulo chosapanga dzimbiri ndi nickel polosys, kupulumutsa thupi kumeneku kumapangitsa kuti ikhale chisankho chodziwika bwino pakugwiritsa ntchito monga Arrospace.

Chitsito chopanda maziko cha 316 chakhala chinthu chofunikira kwambiri kwa gawo la mafakitale. Chitsulo ichi ndi chrome chimadziwika kuti ndikukana kwake kuvunda, komanso kukhazikika kwake. 316 Chitsulo chosapanga dzimbiri chimatha kupangidwa muzosaso komanso machubu owuma kuti akwaniritse zosowa zapadera za kasitomala.

Pofuna kufafanizira mapaipi, ndikofunikira kuchotsa payipi yolunjika pa mapaipi. Mukamagwiritsa ntchito ma piipelines osiyanasiyana, mapaipi osiyanasiyana ayenera kugwiritsidwa ntchito. Pamene mapaipiwo amagwiritsidwa ntchito, chikopa chiyenera kugwiritsidwa ntchito kusintha kukula kwa mapaipi. Mukamacheza, chipika chanjira zitatu chowonekacho chimagwiritsidwa ntchito ngati cholumikizira cholumikizira, kuti chikhazikitse chipani cholumikizirana kapena kukula kwa nthawi yayitali komanso cholumikizira cholumikizira cha mapaipi. , Pakulumikizana ndi zida zosiyanasiyana, palinso zolumikizira ndi mapulagini a gawo la chida.

Giredi 1 Anoy mbale imatsutsana kwambiri, koma ikuchulukirachulukira. Zinthu zathu zitsulo zimadziwika padziko lonse lapansi chifukwa chodalirika komanso mtundu wawo.

Inter 36 ® ndi chitsulo-chitsulo chotsika kwambiri chomwe chili ndi 36% Nickel, IMPARS 36 ili ndi zochulukirapo pakukula kwa kutentha kwa a Crogenic pafupifupi + 260 ° C).

ASTM B564 SIMNSE N04400 STET PERTOM A Moden 400 Flanges ikuwonetsa umboni wa kutentha kwambiri. Kumbali inayo, katundu monga nyonga ndi kuuma kwa magetsi a Monl 400 amangochepetsedwa pang'ono ndi zinthu zina ngati maulendo ena kapena kukana. Kupatula iloy yake imadziwika bwino chifukwa cha kulimba kwake kapena kukhudzidwa mphamvu. Ndipo chifukwa chake imagwiritsidwa ntchito moyenera pogwiritsa ntchito ngati mankhwala ndi hydro-kaboni, zosintha ndi mapampi ndi mapampi.

Chitsulo chosapanga dzimbiri 316 ndi kalasi yopanda kapangidwe katatu ndi 4% molybdenum pakupangidwa kwake. Zomwe zili pachiwonetsero, nickel ndi molybdenum imapanga dzimbiri chosapanga dzimbiri.
Kukula "OD: 1 \ / 2" "~ 48" "

Carbon Steel Bars & ndodo
Chitchaina (chosavuta)
Magalasi okhazikika - omwe adayikapo sayansi-nickel-cobalt matobala, Kovar Smows, ali ndi mzere wowonjezera wowonjezera wofanana ndi galasi lolimba mkati mwa kutentha kwina
nickel aloy monoy 400 chipika 50mm dia

Astme A335 P91 Chiwonetsero chachitsulo komanso choponderezana kwambiri ndi chubu ziwiri ndi mitundu iwiri yomwe ilipo, mitundu imatengera kukula, zomwe zimangotengera kugwiritsa ntchito. Kutalika kwapakati kumatha kukhala hydrostatically yoyesedwa komanso yosakhala yoyeserera yotsutsana.

Ma coil 625 amadziwika ndi kukana kwake kwabwino kwa oxidation, kutentha kwambiri komanso kutopa. ASTM B443 SANDO N06625 SIVELEILE imagwiritsidwa ntchito kwambiri mu anthospace, mankhwala kutengera ndi mafuta ndi mafakitale chifukwa champhamvu kwambiri.

Chivomerezo ichi ndi chifukwa chosiyanasiyana cha SS 304 \ / 304L \ / mapaipi ndi machubu. Zina mwazinthu zomwe ziphuphu ndi machubu omwe akuwonongeka ndikukana kuwononga, maubwino abwino, owuma, okhazikika kutentha kwambiri komanso kulimba mtima.

Incrooy 800h Valnge Tili ndi mbiri yolimba mu malonda popanga mitundu yayikulu ya mitundu yosiyanasiyana ya makasitomala athu. Timakhala ngati infolisoy ma fronges omwe ndi odalirika komanso apamwamba kwambiri. Timagwiritsa ntchito ndalama zotsogola komanso makina apamwamba popanga assowm B564 SIMIL N08800 Stuliloy ma fronges 800.

Zitsulo za alloy ndi ndodo
Kugonjetsedwa kwa Prososion Fretelloy kumagwiritsidwa ntchito kwambiri ndi mafakitale a mankhwala. Kufunika koyenera kumabweretsa mwayi wovomerezeka ndi mphamvu zawo, thanzi komanso zachilengedwe, mafuta ndi mpweya, mafakitale a mankhwala osokoneza bongo.

ASTM B564 SIMNA SICKEL PROME NECKEL-Copper-Copper Stofi, Monl 400 Mindo Yolimba ndi njira yolimba yomwe imangoumitsidwa ndi yozizira. Kudziwika kwambiri chifukwa cha kukana kwake kusokoneza Media ndi madzi am'nyanja, Monl 400 nawonso amalimbana ndi maxidives okhalapo kuposa ovomerezeka. Amadziwikanso kuti Aloy 400, Moninger 400 ma flanges amagwiritsidwanso ntchito kutentha kwakukulu, kovuta komanso mchere.

Intelsel Alloy 718 Maboti ndi oxidation ogwiritsa ntchito osunga ndalama. Ma flanges athu asanu ndi awiriwo amayenera kupangidwa kuti azikhala okhwima komanso odzaza.

316l 1.4401 s31603 Chipika chosapanga dzimbiri ndi njira yolimba komanso yolimba yofananira yomwe imagwiritsidwa ntchito pazosiyanasiyana za mafakitale ndi malonda. Izi s31603 chitoliro chimapangidwa kuchokera pazinthu zapamwamba za 316l osapanga dzimbiri mosapanga dzimbiri mosapanga chipongwe, oxidation ndi chomata, zomwe zimapangitsa kuti zikhale zabwino m'malo mwazinthu zovuta kapena zovuta.

Cholinga cha mankhwala oyamba: kuthetsa zilema zina zam'manja ndi zinthu zomaliza zomaliza, ndikukonzekera bungwe lozizira logwira ntchito ndi mankhwala komaliza.

Kusintha kwa Favoro 600 ron kumalola kuti zigwiritsidwe ntchito pamapulogalamu osiyanasiyana okhudza kutentha kuyambira kutentha kwa ma crytogenic mpaka 2000gãf (1095p).

Mukamalumikiza magawo amenewa, ikani gasiketi pakati pa ma flanges awiri, kenako ndikulimbana ndi zomangira, kotero awiriwo adzalumikizidwa pamodzi mwamphamvu.

Chromium yapamwamba, molybdenum ndi nayitrogeni imapangitsa kuti zikhale bwino kwambiri (zomwe zingachitike) zitsulo zokongoletsera ndi zotupa zosapanga dzimbiri, komanso kutentha kotsika kwambiri kuposa 50¡c.

Invalsel 718 ndi alloy-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium-chromium yomwe imagwiritsidwa ntchito kwambiri pamapulogalamu apamwamba monga Aweslospace ndi majini agalu. Chimodzi mwazinthu zofunika kwambiri pakupanga a Ism B670 Invelve 718 ndiye kuti mbale yogubuduza. Pali mitundu iwiri yayikulu ya mbale za Intery18 zomwe zilipo pamsika: kuwotcha mbale zowombera.

Zitsulo zosapanga dzimbiri ziyenera kukhala ndi chromium osachepera 10%. Kutengera ndi kalasi, kumatha kukhala ndi magawo apamwamba kwambiri a chromium, komanso zophatikiza zina zophatikiza ngati Molybdenum, nickel, Titeroroumu, phomphous kapena selenium kapena selenium.

Mapaipi 254 amatha kupirira kupsinjika kwa makina opanga masewera olimbitsa thupi komanso aloy 254 osuma amagwira ntchito yopanikizika kwambiri komanso malo okhala.

ASTM A240 Mtundu 2205 Plate ndi duwa losapanga dzimbiri lomwe limagwiritsidwa ntchito kwambiri m'mafakitale, kufufuza kwamafuta ndi mafuta, ndi ukadaulo wamadzi, ndi ukadaulo wamadzi. Mapepala 2205 amapangidwa kuchokera ku kalasi ya SAGIS 2205, chitsulo chosapanga dzimbiri, chomwe chimaphatikizika ndi chitsulo champhamvu.

Zimawonetsa kukana bwino kusalowerera ndale. Izi za alloy zimapanga mwa khumi ndi chimodzi, filimu yoteteza yomwe siyitalikirapo, koma imasunganso kukana kwa makutina kuposa kutentha.
Lembani chitoliro chopanda pake
www.htpipe.es
Chitoliro chowala
Chubu chowala
Kovar Aloy 4j29
Zitsulo zosapanga dzimbiri & ndodo
Flange Mount Pipe Furhanger Hanger Osapanga Chitsulo 316
Nickel Anoney othamanga
A403 Wp316L Sch40s 45 90 madigiri lr
FSTEOLLOY C2000 mapaipi a ASME SB626 FOTELOLELOY C2000 Worded Bis
Titanium tubing mphamvu zazikulu ndi kachulukidwe kakang'ono
A ANI B16.9 Chipamba cha 36 chitoliro cha BendWeld Tydwild chitoliro chitoliro
Illevesel Pipe Natioxidant Kukana

Astm A335 GR.P91 Steel Pripe Plipe pamtengo pa Tonni
ASTM B525 Incngeli 625 Slange Altoy 625, Syade 625 Flange, Sremium-Srengel-Chromium-molybdenum ndi mphamvu yayikulu kwambiri. Mphamvu ya Alloy 625, A STRAF.625 imachokera ku smiforder ya Molybdenum ndi Niobium pa Nickel Matrix. Ngakhale alloy adapangidwa kuti azitha kutentha kwambiri, zomwe zimapangidwa kwambiri ndizomwe zimapangitsa kuti zigwirizane ndi kuchuluka kwa kuchuluka kwa kuchuluka.

Zitsulo zosapanga dzimbiri 235ma zowongoka ndizothamanga zomwe zimagwira magawo awiri kapena kupitilira kwa nthawi yodziwika. Itha kumasulidwa ndi zida zina monga zimafunikira kuyeretsa makinawo. Kukhala wamphamvu kwambiri, kumawonetsa zambiri zolimbitsa mphamvu ndi mphamvu. Magawo ena omwe amagwiritsa ntchito izi zimaphatikizapo ma petrochemicals, mankhwala, mphamvu zamagetsi zomera, zamagetsi, ndege, astospace, pakati pa ena. Tapeza makasitomala abwino kwambiri padziko lonse lapansi mitundu yonse ya 253ma zitsulo zomangira.

FOSTEOLLOY C22 chitoliro cha Astherm B366 SANDO N06022 Chipamba chitoliro chogwirizana ndi ma acid ndi crevice kuturuka

Kuipidwa Kuwala kwa Khokosi Lapamwamba 3

FOSTELOLELOY C22 yolumikizidwa ma flanges ali ndi kukana kwathunthu kwa onse kuchepetsa ndi kuchuluka kwa ma cels ndipo chifukwa cha kusafunikira kwake kungagwiritsidwe ntchito pomwe ° zimagwiritsidwa ntchito pomwe zidakwiya.

S32750 S32760 Super Duptux dambo wosapanga matope osakhazikika

Nickel kutengera 800 inclooy chitoliro chomwe chimadziwika kuti ndi kukana bwino kuwonongeka. Makamaka kuyankhula, chisumbulu 800 chitoliro chimapereka kukana mokwanira zotsutsana ndi ma carburization onse komanso oxidation kutukula.
Lembani chitoliro chopanda pake
www.htpipe.es
Chitoliro chowala
Chubu chowala
Kovar Aloy 4j29
Zitsulo zosapanga dzimbiri & ndodo
Flange Mount Pipe Furhanger Hanger Osapanga Chitsulo 316
Nickel Anoney othamanga
A403 Wp316L Sch40s 45 90 madigiri lr
FSTEOLLOY C2000 mapaipi a ASME SB626 FOTELOLELOY C2000 Worded Bis
Nickel alloy mbale & ma sheets & coils

Zimakhala zovuta kwambiri ndi sulfuric acid, chloride, bromides, iodide ndi mafuta acid acid amatha kusintha kutentha kwambiri. Kupanga mankhwala ena kumafuna kugwiritsa ntchito chitsulo chosapanga dzimbiri kuti mupewe kuipitsidwa ndi zitsulo kwambiri.

Zotsatira Zazikulu ndi kuphatikiza kwa nickel ku Interseel 718 mtedza. Masiku ano, Aestosce akukhala msika wotsatira wa Inval 718 Hex Bolts chifukwa cha ntchito yake yayikulu mu kutentha okwera komanso kutentha.

Nthawi zambiri N08367 imatchedwanso Al6xn Al6xn ndi kaboni yotsika, yoyera kwambiri, nulytel-molybdenum yolimbana ndi crevice.

Zizindikiro za Nickel-Copy-Copy 400 monol 2.4360 molunjika rod ndiyabwino kwambiri opsinjika ku chloride ku chloride movutikira mukakumana ndi zowononga m'matumbo. Monl 400 ndi a Haloy ndi Nickel omwe amadziwika masiku ano chifukwa cha ntchito yake yayitali. Alloy ali ndi kukana bwino acid ndi alkali. Kuphatikiza apo, ili ndi mphamvu zabwino zokhala ndi mphamvu, duckity, kukhala waulimi wabwino kwambiri, ndipo imatha kuumitsidwa ndi ntchito yozizira. Kuphatikiza apo, itha kugwiritsidwa ntchito poizona ndi kutentha kuyambira kuchotsera mpaka 538 digiri Celsius.

Alloy 800 ndi a nickeum-chromiam almoy mphamvu ndi mphamvu yayikulu komanso kukana kwa oxidation ndi kutupa kwambiri. ASTM B407 SINE N08800 infoloy 800 WR. 1.4876 Chitoliro chowala bwino chimagwiritsidwa ntchito kwambiri pomanga zida zofuna kukana kuchuluka, kukana kutentha, mphamvu, komanso kukhazikika pakuchita nawo ntchito mpaka 1500 ° C).

Zovala zosapanga dzimbiri 304 zopangira mapepala zimapangidwa ndi zinthu zosawerengeka zosapanga zitsulo zomwe zili ndi zitsulo za 18% chromium ndi 8% nickel mu kapangidwe kake.

316 Chipaka chofiyira chimagwiritsidwa ntchito makamaka pomanga ndi chomangamanga chifukwa cholimba, osagwirizana ndi vuto lalikulu.

A789 S31803 ndi S32205 ndi zitsulo ziwiri zosapanga dzimbiri zomwe zimagwiritsidwa ntchito kwambiri pantchito zosiyanasiyana. Mapaipi awa a duplex s31803 osakhala opanda chidwi amadziwika chifukwa chokana kwambiri kuwonongeka, mphamvu zazikulu, komanso kutopa kwambiri. A789 ndi lingaliro lomwe limakwirira osawoneka bwino komanso machubu opangidwa ndi chitsulo chosapanga dzimbiri.
Lembani chitoliro chopanda pake
www.htpipe.es
Chitoliro chowala
Chubu chowala
Kovar Aloy 4j29
Zitsulo zosapanga dzimbiri & ndodo
Flange Mount Pipe Furhanger Hanger Osapanga Chitsulo 316
Nickel Anoney othamanga
A403 Wp316L Sch40s 45 90 madigiri lr
FSTEOLLOY C2000 mapaipi a ASME SB626 FOTELOLELOY C2000 Worded Bis
Duptux Stevel & Mapepala & Coils

Monga austentic ndi austitic -dy, alyoy 926 mtedza ndizokwera pamtunda wambiri kuchokera kutentha mpaka madigiri 5000). Makina ndi ofanana ndi ogwirizanitsa a Nickel, ndi Aloy 926 ma bolts omwe amatha kutsekedwa mosavuta komanso kupangidwa pogwiritsa ntchito njira zosiyanasiyana.
FOSTELLELY WOPHUNZITSA
www.htpipe.es
Chitoliro chowala
Chubu chowala
Kovar Aloy 4j29
Zitsulo zosapanga dzimbiri & ndodo
kutentha mankhwala osapanga chitsulo cha 304 304L 1.4301
Nickel Anoney othamanga
A403 Wp316L Sch40s 45 90 madigiri lr

304 Nphwemba zopondapondazikulu zimapangidwa ndi chitsulo chosapanga dzimbiri, zinthu wamba komanso zodziwika bwino muzogwiritsidwa ntchito zambiri zamakampani zomwe zimafunikira kukana kuwonongeka ndi oxidation. Nyansiweli iyi ya S30400 imakonzedwa pogwiritsa ntchito makina apadera ndi njira, zomwe zikuwonetsetsa kuti ndi olondola komanso odalirika.
Amagwiritsidwa ntchito kwambiri mu zopondaponda m'mafuta ndi mafuta a gasi \ / kupanga ndi kusinthidwa kwa kutentha mu petrochemical \ / mankhwala.

Cholimba Chanthe kutentha: Alloy amatenthetsedwa kutentha kwambiri kwa gawo limodzi ndi kusungunuka mosalekeza, kotero kuti gawo lochulukirapo limasungunuka kwathunthu njira yolimba.

Monil Anoy K500 Mantha amapangidwa moyang'aniridwa ndi akatswiri athu odziwa ntchito.

Mapaipi a kusokonekera kosasaka kumakhala ndi mwayi wokhala ndi katundu wapamwamba kwambiri komanso mphamvu zambiri.

Nickel Anoy 400 ndi Monl 400, omwe amadziwikanso kuti ndi N04400 Nictal-Copy-Copy-Copy kukhala makamaka mwa atatu a Nickel ndi chachitatu. Nickel Anoy 400 amadziwika chifukwa chokana kusiyanasiyana, kuphatikiza alkalis (kapena asidi), madzi amchere, ma hydrofluoric acid. Kuyambira monoy 400 kapena Aloy 400 ndi chitsulo chozizira chogwira ntchito, chivomerezichi chimakhala cholimba, kuuma ndi mphamvu. Pogwira ntchito yozizira astm B164 SARD N04400 bar stock, alloy imayang'aniridwa ndi kupsinjika kwamakina, komwe kumapangitsa kusintha kwa micrestructuctuctution ya Alloy.

ASTM B564 SIMNA SICKEL PROME NECKEL-Copper-Copper Stofi, Monl 400 Mindo Yolimba ndi njira yolimba yomwe imangoumitsidwa ndi yozizira. Kudziwika kwambiri chifukwa cha kukana kwake kusokoneza Media ndi madzi am'nyanja, Monl 400 nawonso amalimbana ndi maxidives okhalapo kuposa ovomerezeka. Amadziwikanso kuti Aloy 400, Moninger 400 ma flanges amagwiritsidwanso ntchito kutentha kwakukulu, kovuta komanso mchere.

Ictives 600 yozungulira ndi intoy-valkel-brad-cenel carburrization ndi kukana bwino kuwonongedwa kwakukulu. Zingwe zozungulira 600 zozungulira zimagwira ntchito kuyanika cl2 ndi mipweya ina yambiri yofananira ndi kutentha kwambiri. Alloy 600 bar ndi a chromial-cromiyal-cromiyal-cromiyal-chloride bwino oxidation ndi kukana ku chloride kuwonongeka kwa chloride kugwa, ukhondo wamadzi acid kumatentha.