China Liquid Oxygen Pipe Series
Tsananguro Pfupi yeChigadzirwa:
- Mapaipi emvura eokisijeni emhando yepamusoro akagadzirirwa kuvimbika uye kuchengetedzeka
- Yakagadzirwa neunyanzvi muChina ine matekiniki ekugadzira epamusoro
- Sarudzo dzinogona kugadziriswa kuti dzisangane nezvinodiwa zvemapurogiramu akasiyana
- Rutsigiro rwevatengi rwakatsaurirwa uye sevhisi mushure mekutengesa kuti uwane ruzivo rwakakwana
Ruzivo rweChigadzirwa:
Kuparadzirwa kweOkisijeni yemvura Yakavimbika uye Yakachengeteka: Mapaipi edu eChina Liquid Oxygen Pipe Series anopa mapaipi emhando yepamusoro akagadzirirwa kugoverwa kweokisijeni yemvura zvakanaka uye zvakachengeteka. Pombi yega yega yakagadzirwa zvine hungwaru kuti isvike pazvinodiwa nemaindasitiri, ichivimbisa kuvimbika uye kuchengetedzeka munzvimbo dzakasiyana-siyana dzemaindasitiri nedzekurapa uko oxygen yemvura inoshandiswa.
Unyanzvi Hwekugadzira Zvinhu muChina: Yakagadzirwa muChina, Liquid Oxygen Pipe Series yedu inobatsirwa nehunyanzvi uye kunyatsorongeka kunozivikanwa neindasitiri yekugadzira yenyika. Nezvivakwa zvemazuva ano zvekugadzira uye kuzvipira kune mhando, pombi yega yega yakagadzirwa zvine hungwaru kuti ipe mashandiro akanaka uye hupenyu hurefu, ichizadzisa zvinodiwa zvakasiyana-siyana zvevatengi vedu.
Sarudzo Dzinogona Kugadziriswa dzeMapurogiramu Akasiyana-siyana: Tichiziva zvinodiwa zvakasiyana zvemapurogiramu akasiyana-siyana, tinopa sarudzo dzinogadziriswa dzeChina Liquid Oxygen Pipe Series yedu. Ingave iri dhayamita chaiyo, kureba, kana kuumbwa kwezvinhu, timu yedu inoshanda pamwe chete nevatengi kuti vape mhinduro dzakagadzirirwa zvinoenderana nezvinodiwa zvavo zvekushanda, vachivimbisa kubatanidzwa muhurongwa hwavo pasina matambudziko.
Rutsigiro Rwakatsaurirwa rweVatengi uye Basa reKutengesa Mushure meKutengesa: Kuzvipira kwedu kugutsa vatengi kunopfuura kutenga Liquid Oxygen Pipe Series yedu. Tinopa rutsigiro rwakatsaurirwa rwevatengi uye basa rekutengesa mushure mekutengesa kuti tipindure chero mibvunzo kana zvinonetsa, tichipa vatengi vedu chivimbo nerugare rwepfungwa mukushanda uye kuvimbika kwezvigadzirwa zvedu muhupenyu hwavo hwese.
Kuve nechokwadi chekuti zvinoitwa uye mashandiro azvo: China Liquid Oxygen Pipe Series yakagadzirirwa kusangana nezvinodiwa neindasitiri zvakasimba zvekuchengetedza, kushanda, uye kugara kwenguva refu. Tichitarisa pakuona kuti zvinoitwa nemitemo, mapaipi edu isarudzo yakavimbika kune maindasitiri nenzvimbo dzinokoshesa kuchengetedzeka uye kushanda zvakanaka mumasisitimu avo ekugovera okisijeni yemvura.
Mhedziso: China Liquid Oxygen Pipe Series inoratidza kuzvipira kwedu pakupa zvigadzirwa zvemhando yepamusoro kuti okisijeni yemvura igoverwe zvakachengeteka uye zvinobudirira. Kuburikidza nehunyanzvi hwehunyanzvi, sarudzo dzinogadziriswa, uye rutsigiro rwevatengi rwakasimba, mapaipi edu anopa kuvimbika, kuchengetedzeka, uye mashandiro akagadzirirwa zvinodiwa zvakasiyana-siyana zvemaindasitiri nemabasa ekurapa.
Vhidhiyo
Mapaipi eVacuum Insulated
Mapaipi Anoputirwa neVacuum (VI Piping), kureva Mapaipi Anoputirwa neVacuum (VJ Piping), senzvimbo yakakwana yekudzivirira mapombi. Kana tichienzanisa nekudzivirira mapombi, kukosha kwekubuda kwekupisa kweVIP kunongopfuura 0.05 ~ 0.035 nguva yekudzivirira mapombi. Chengetedza simba nemari zvakanyanya kune vatengi.
Zvigadzirwa zveVacuum Jacketed Pipe, Vacuum Jacketed Hose, Vacuum Jacketed Valve, uye Phase Separator muHL Cryogenic Equipment Company, zvakapfuura nepakati pematanho ekurapa kwakasimba kwazvo, zvinoshandiswa pakufambisa okisijeni yemvura, nitrogen yemvura, argon yemvura, hydrogen yemvura, helium yemvura, LEG neLNG, uye zvigadzirwa izvi zvinoshandiswa pakushandisa michina ye cryogenic (semuenzaniso matangi e cryogenic, ma dewars nema coldboxes nezvimwewo) mumaindasitiri ekuparadzanisa mhepo, magasi, ndege, zvemagetsi, superconductor, machipisi, automation assembly, chikafu nezvinwiwa, pharmacy, chipatara, biobank, rabha, kugadzira zvinhu zvitsva zvemakemikari engineering, iron & steel, uye scientific research nezvimwewo.
Mhando nhatu dzekubatanidza dzeVI Piping
Mhando nhatu dzekubatanidza pano dzinongoshanda chete panzvimbo dzekubatanidza pakati pemapaipi eVI. Kana VI Pipe yakabatana nemidziyo, tangi rekuchengetera nezvimwewo, nzvimbo yekubatanidza inogona kugadziriswa zvichienderana nezvinodiwa nevatengi.
Kuti zvikwanisike kuwana zvinodiwa zvakasiyana zvevatengi, Vacuum Insulated Pipe yakagadzira mhando nhatu dzekubatanidza, dzinoti Vacuum Bayonet Connection Type ine Clamps, Vacuum Bayonet Connection Type ine Flanges neBolts uye Welded Connection Type. Dzine zvakanakira zvakasiyana uye dzakakodzera mamiriro akasiyana ekushanda.
Mashandisirwo Ekushandisa
| Vacuum Bayonet Connection Type ine Clamps | Rudzi rwekubatanidza rweVacuum Bayonet neFlanges neBhodhi | Rudzi rwekubatanidza rwakasungirirwa | |
| Rudzi rwekubatanidza | Makirampu | Maflanges neMabhoti | Welding |
| Rudzi rwekudzivirira majoini | Muchina wekuchenesa | Muchina wekuchenesa | Perlite kana Vacuum |
| Kurapa Kwakadzivirirwa Panzvimbo | No | No | Ehe, bvisa perlite kana kuti pombi ye vacuum kubva muInsulated Sleeves pamajoini. |
| Dhayamita yezita rekuti Inner Pipe | DN10(3/8")~DN25(1") | DN10(3/8")~DN80(3") | DN10(3/8")~DN500(20") |
| Kumanikidzwa Kwekugadzira | ≤8 bhawa | ≤16 bhawa | ≤64 bhawa |
| Kuiswa | Zviri nyore | Zviri nyore | Welding |
| Kupisa Kwekugadzira | -196 ℃~ 90 ℃ (LH2 & LHe: -270 ℃ ~ 90 ℃) | ||
| Kureba | 1 ~ 8.2 mita/zvimedu | ||
| Zvinhu | Simbi Isina Zvishongo 300 | ||
| Pakati nepakati | LN2, LOX, LAr, LHe, LH2, GUMBO, LNG | ||
Hukuru hweChigadzirwa
| Chigadzirwa | Tsanangudzo | Kubatanidza Bayonet neVacuum neClamps | Kubatanidza Vacuum Bayonet neFlanges neBholts | Kubatanidza Kwakaputirwa Nesimbi YeWeld |
| Pipe yeVacuum Insulated | DN8 | EHE | EHE | EHE |
| DN15 | EHE | EHE | EHE | |
| DN20 | EHE | EHE | EHE | |
| DN25 | EHE | EHE | EHE | |
| DN32 | / | EHE | EHE | |
| DN40 | / | EHE | EHE | |
| DN50 | / | EHE | EHE | |
| DN65 | / | EHE | EHE | |
| DN80 | / | EHE | EHE | |
| DN100 | / | / | EHE | |
| DN125 | / | / | EHE | |
| DN150 | / | / | EHE | |
| DN200 | / | / | EHE | |
| DN250 | / | / | EHE | |
| DN300 | / | / | EHE | |
| DN400 | / | / | EHE | |
| DN500 | / | / | EHE |
Hunhu hwehunyanzvi
| Kumanikidzwa Kwekugadzira Mubatsiri | ≥4.0MPa |
| Kupisa Kwekugadzira | -196C~90℃ （LH2& LHe: -270~90℃） |
| Tembiricha yemhepo | -50~90℃ |
| Mwero wekudonha kwevacuum | ≤1*10-10Pa*m3/S |
| Chikamu cheVacuum mushure meGuarantee | ≤0.1 Pa |
| Nzira Yakadzivirirwa | Kudzivirira Kupisa Kwema "Vacuum" Akawanda. |
| Adsorbent uye Getter | Ehe |
| NDE | Kuongororwa kweX-ray kwe100% |
| Kumanikidzwa kwekuyedza | 1.15 Nguva Dzekumanikidzwa Kwekugadzira |
| Pakati nepakati | LO2LN2、LAr、LH2、LHe、GUMBO、LNG |
Sisitimu yeMapaipi Inochinjika uye Yakasimba yeVacuum
Sisitimu yeMapaipi yeVacuum Insulated (VI) inogona kukamurwa kuita Dynamic uye Static VI Piping System.
lMapaipi eStatic VI apera zvizere mufekitori yekugadzira.
lMapaipi eDynamic VI anopiwa mamiriro evacuum akasimba nekupomba nguva dzose kwesystem yevacuum pombi panzvimbo yacho, uye zvimwe zvese zvekugadzirisa nekugadzirisa zvichiri mufekitori yekugadzira.
| Sisitimu yeDynamic Vacuum Insulated Piping | Sisitimu yeMapombi yeVacuum Inochinjika | |
| Nhanganyaya | Dhigirii re vacuum re vacuum interlayer rinotariswa nguva dzose, uye pombi ye vacuum inodzorwa otomatiki kuti ivhure nekuvhara, kuve nechokwadi chekugadzikana uye kushanda kwedhigirii re vacuum. | VJPs vanopedzisa basa rekudzivirira vacuum mufekitori yekugadzira. |
| Zvakanakira | Kuchengetwa kwevacuum kwakasimba, zvinongobvisa kugadziriswa kwevacuum mune ramangwana. | Kudyara mari zvishoma uye kuisa panzvimbo yacho kuri nyore |
| Rudzi rwekubatanidza rweVacuum Bayonet neClamps | Kushanda | Kushanda |
| Rudzi rwekubatanidza rweVacuum Bayonet neFlanges neBhodhi | Kushanda | Kushanda |
| Rudzi rwekubatanidza rwakasungirirwa | Kushanda | Kushanda |
Sisitimu yeDynamic Vacuum Insulated Piping System: Ine Mapaipi Anoputirwa neVacuum, Jumper Hoses uye Vacuum Pump System (kusanganisira mapombi anoputirwa neVacuum, mavharuvhu esolenoid uye magauge evacuum).
Tsanangudzo uye Muenzaniso
HL-PX-X-000-00-X
Rudzi
Midziyo yeHL Cryogenic
Tsananguro
PD: Pombi yeDynamic VI
PS: Pombi yeVI isina kusimba
Rudzi rwekubatanidza
W: Welded Type
B: Rudzi rweBayonet yeVacuum ine Maclamps
F: Rudzi rweBayonet yeVacuum ine Flanges neBhodhi
Dhayamita yezita rekuti Inner Pipe
010: DN10
…
080: DN80
…
500: DN500
Kumanikidzwa Kwekugadzira
08: 8bha
16: 16bha
25: 25bha
32: 32bha
40: 40bha
Zvinhu zvePaipi Yemukati
A: SS304
B: SS304L
C: SS316
D: SS316L
E: Zvimwe
Sisitimu yeMapombi yeVacuum Inochinjika
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPSB01008X | Rudzi rwekubatanidza rweVacuum Bayonet neClamps yeStatic Vacuum Insulated Piping System | DN10, 3/8" | 8 bhawa
| Simbi Isina Zvishongo 300 | ASME B31.3 | X: Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPSB01508X | DN15, 1/2" | |||||
| HLPSB02008X | DN20, 3/4" | |||||
| HLPSB02508X | DN25, 1" |
Dhayamita yezita rekuti Inner Pipe:Zvinokurudzirwa ≤ DN25 kana 1". Kana kusarudza Vacuum Bayonet Connection Type ine Flanges neBolts (kubva kuDN10, 3/8" kusvika kuDN80, 3"), Welded Connection Type VIP (kubva kuDN10, 3/8" kusvika kuDN500, 20")
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Kumanikidzwa Kwekugadzira: Zvinokurudzirwa ≤ 8 bar. Kana kusarudza Vacuum Bayonet Connection Type ine Flanges neBolts (≤16 bar), Welded Connection Type (≤64 bar)
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPSF01000X | Rudzi rwekubatanidza rweVacuum Bayonet neFlanges neBholts yeStatic Vacuum Insulated Piping System | DN10, 3/8" | 8~16 bhawa | Simbi Isina Zvishongo 300 | ASME B31.3 | 00: Kumanikidzwa Kwekugadzira. 08 ine 8bar, 16 ine 16bar.
X: Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPSF01500X | DN15, 1/2" | |||||
| HLPSF02000X | DN20, 3/4" | |||||
| HLPSF02500X | DN25, 1" | |||||
| HLPSF03200X | DN32, 1-1/4" | |||||
| HLPSF04000X | DN40, 1-1/2" | |||||
| HLPSF05000X | DN50, 2" | |||||
| HLPSF06500X | DN65, 2-1/2" | |||||
| HLPSF08000X | DN80, 3" |
Dhayamita yezita rekuti Inner Pipe:Zvinokurudzirwa ≤ DN80 kana 3". Kana kusarudza Welded Connection Type (kubva kuDN10, 3/8" kusvika kuDN500, 20"), Vacuum Bayonet Connection Type ine Clamps (kubva kuDN10, 3/8" kusvika kuDN25, 1").
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Kumanikidzwa Kwekugadzira: Zvinokurudzirwa ≤ 16 bar. Kana kusarudza Welded Connection Type (≤64 bar).
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPSW01000X | Rudzi rwekubatanidza rwakasungirirwa rweStatic Vacuum Insulated Piping System | DN10, 3/8" | 8~64 bhawa | Simbi Isina Zvishongo 300 | ASME B31.3 | 00: Kumanikidzwa Kwekugadzira 08 ine 8bar, 16 ine 16 bar, uye 25, 32, 40, 64.
X: Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPSW01500X | DN15, 1/2" | |||||
| HLPSW02000X | DN20, 3/4" | |||||
| HLPSW02500X | DN25, 1" | |||||
| HLPSW03200X | DN32, 1-1/4" | |||||
| HLPSW04000X | DN40, 1-1/2" | |||||
| HLPSW05000X | DN50, 2" | |||||
| HLPSW06500X | DN65, 2-1/2" | |||||
| HLPSW08000X | DN80, 3" | |||||
| HLPSW10000X | DN100, 4" | |||||
| HLPSW12500X | DN125, 5" | |||||
| HLPSW15000X | DN150, 6" | |||||
| HLPSW20000X | DN200, 8" | |||||
| HLPSW25000X | DN250, 10" | |||||
| HLPSW30000X | DN300, 12" | |||||
| HLPSW35000X | DN350, 14" | |||||
| HLPSW40000X | DN400, 16" | |||||
| HLPSW45000X | DN450, 18" | |||||
| HLPSW50000X | DN500, 20" |
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
Sisitimu yeDynamic Vacuum Insulated Piping
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPDB01008X | Rudzi rwekubatanidza rweVacuum Bayonet neClamps yeStatic Vacuum Insulated Piping System | DN10, 3/8" | 8 bhawa | Simbi Isina Zvishongo 300 | ASME B31.3 | X:Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPDB01508X | DN15, 1/2" | |||||
| HLPDB02008X | DN20, 3/4" | |||||
| HLPDB02508X | DN25, 1" |
Dhayamita yezita rekuti Inner Pipe:Zvinokurudzirwa ≤ DN25 kana 1". Kana kusarudza Vacuum Bayonet Connection Type ine Flanges neBolts (kubva kuDN10, 3/8" kusvika kuDN80, 3"), Welded Connection Type VIP (kubva kuDN10, 3/8" kusvika kuDN500, 20")
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Kumanikidzwa Kwekugadzira: Zvinokurudzirwa ≤ 8 bar. Kana kusarudza Vacuum Bayonet Connection Type ine Flanges neBolts (≤16 bar), Welded Connection Type (≤64 bar)
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
Mamiriro Emagetsi:Nzvimbo iyi inofanira kupa magetsi kumapombi evacuum uye kuzivisa HL Cryogenic Equipment ruzivo rwemagetsi emunharaunda (Voltage neHertz)
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPDF01000X | Rudzi rwekubatanidza rweVacuum Bayonet neFlanges neBholts yeStatic Vacuum Insulated Piping System | DN10, 3/8" | 8~16 bhawa | Simbi Isina Zvishongo 300 | ASME B31.3 | 00: Kumanikidzwa Kwekugadzira. 08 ine 8bar, 16 ine 16bar.
X: Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPDF01500X | DN15, 1/2" | |||||
| HLPDF02000X | DN20, 3/4" | |||||
| HLPDF02500X | DN25, 1" | |||||
| HLPDF03200X | DN32, 1-1/4" | |||||
| HLPDF04000X | DN40, 1-1/2" | |||||
| HLPDF05000X | DN50, 2" | |||||
| HLPDF06500X | DN65, 2-1/2" | |||||
| HLPDF08000X | DN80, 3" |
Dhayamita yezita rekuti Inner Pipe:Zvinokurudzirwa ≤ DN80 kana 3". Kana kusarudza Welded Connection Type (kubva kuDN10, 3/8" kusvika kuDN500, 20"), Vacuum Bayonet Connection Type ine Clamps (kubva kuDN10, 3/8" kusvika kuDN25, 1").
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Kumanikidzwa Kwekugadzira: Zvinokurudzirwa ≤ 16 bar. Kana kusarudza Welded Connection Type (≤64 bar).
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
Mamiriro Emagetsi:Nzvimbo iyi inofanira kupa magetsi kumapombi evacuum uye kuzivisa HL Cryogenic Equipment ruzivo rwemagetsi emunharaunda (Voltage neHertz)
| Model | KubatanaRudzi | Dhayamita yezita rekuti Inner Pipe | Kumanikidzwa Kwekugadzira | ZvinhuyePaipi Yemukati | Zvakajairika | Mashoko |
| HLPDW01000X | Rudzi rwekubatanidza rwakasungirirwa rweDynamic Vacuum Insulated Piping System | DN10, 3/8" | 8~64 bhawa | Simbi Isina Kushanda 304, 304L, 316, 316L | ASME B31.3 | 00: Kumanikidzwa Kwekugadzira 08 ine 8bar, 16 ine 16 bar, uye 25, 32, 40, 64. .
X: Zvinhu zvePaipi Yemukati. A i304, B i304L, C i316, D i316L, E ndeimwe. |
| HLPDW01500X | DN15, 1/2" | |||||
| HLPDW02000X | DN20, 3/4" | |||||
| HLPDW02500X | DN25, 1" | |||||
| HLPDW03200X | DN32, 1-1/4" | |||||
| HLPDW04000X | DN40, 1-1/2" | |||||
| HLPDW05000X | DN50, 2" | |||||
| HLPDW06500X | DN65, 2-1/2" | |||||
| HLPDW08000X | DN80, 3" | |||||
| HLPDW10000X | DN100, 4" | |||||
| HLPDW12500X | DN125, 5" | |||||
| HLPDW15000X | DN150, 6" | |||||
| HLPDW20000X | DN200, 8" | |||||
| HLPDW25000X | DN250, 10" | |||||
| HLPDW30000X | DN300, 12" | |||||
| HLPDW35000X | DN350, 14" | |||||
| HLPDW40000X | DN400, 16" | |||||
| HLPDW45000X | DN450, 18" | |||||
| HLPDW50000X | DN500, 20" |
Dhayamita yezita rekuti Paipi Yekunze:Zvinokurudzirwa neEnterprise Standard yeHL Cryogenic Equipment. Inogonawo kugadzirwa zvichienderana nezvinodiwa nemutengi.
Zvinhu zvePaipi Yekunze: Pasina chinodiwa chakakosha, zvinhu zvepombi yemukati nepombi yekunze zvichasarudzwa zvakafanana.
Mamiriro Emagetsi:Nzvimbo iyi inofanira kupa magetsi kumapombi evacuum uye kuzivisa HL Cryogenic Equipment ruzivo rwemagetsi emunharaunda (Voltage neHertz)
