Camlock couplings, ezivame ukubizwa ngokuthi ama-cam and groove couplings, aphakathi kwezinto ezisetshenziswa kakhulu zokuxhuma amahose ngokushesha ezinhlelweni zokudlulisa uketshezi ezimbonini emhlabeni wonke. Lawa ma-couplings aguquguqukayo enza kube lula ukuxhuma nokuhlukanisa amahose namapayipi ngokushesha ngaphandle kwesidingo samathuluzi, okwenza abaluleke kakhulu ezimbonini ezisukela ekucubunguleni amakhemikhali kuya ekukhiqizeni ukudla neziphuzo. Nokho, akubona wonke ama-camlock couplings afanayo, futhi izinga lokucindezela (pressure rating) le-coupling lingenye yezinto ezibaluleke kakhulu okumele onjiniyela nochwepheshe bokuthenga bazihlole ngaphambi kokukhetha i-fitting yohlelo oluthile. Istandard ye-EN14420-7 inikeza uhlaka olubanzi lokuqinisekisa ukuthi ama-camlock couplings ahlangabezana nezidingo ezifanayo zobukhulu, izinto zokwakha, kanye nezokucindezela phakathi kwamaqoqo okukhiqiza nabahlinzeki, inikeza izinga lokuphepha nokushintshana elibalulekile ezindaweni zezimboni ezinzima.

Ukuqonda ukuhlukaniswa kwezinga lokucindezela ngokwezinga lezinto ezisetshenziswayo kubalulekile ngoba izici zomzimba zento zinquma ngokuqondile ukuthi ukuxhunywa kungamelana nokucindezela kwangaphakathi okungakanani ngesikhathi sokusebenza. Ukuxhunywa okwenziwe ngensimbi engagqwali ngokusobala kuzoziphatha ngendlela ehluke kakhulu ngaphansi kwengcindezi uma kuqhathaniswa nalokho okwenziwe nge-polypropylene, futhi ukukhetha izinga elingalungile kungaholela ekwehlulekeni okuyinhlekelele, ukuvuza, ngisho nokulimala okubi kakhulu kubasebenzi abaphatha uketshezi oluyingozi. Istandard ye-EN14420-7 isungula imihlahlandlela ecacile yamazinga okucindezela, isiza abasebenzisi bokugcina ukuthi bafanise izidingo zabo zokusebenza nomklamo wokuxhunywa ofanele nokwakheka kwezinto ezisetshenziswayo. Emabhizinisini ancike ekudlulisweni koketshezi okuphumelelayo nokuphephile, ukunaka lezi zingxenyekazi akusiyona nje imininingwane yezobuchwepheshe kodwa kuyisici esiyisisekelo sokuphathwa kwezingozi zokusebenza kanye nokusebenza kahle kwezindleko zesikhathi eside, ngoba ukuxhunywa okufanele okulethwa ngezinga lokucindezela elifanele kunganciphisa kakhulu isikhathi sokuma komsebenzi nezindleko zokulungisa.

Izinga le-EN14420-7 liyindinganiso yaseYurophu ebhekene ngqo nezidingo zamacoupling okukhiya ngocingo (cam locking couplings) asetshenziswa emihlangeni yamapayipi (hose assemblies), ichaza ubukhulu bawo, izinto zokwakha, kanye nemibandela yokusebenza ukuze kuqinisekiswe ukuhambisana nokuphepha emakethe yaseYurophu nangale kwayo. Leli zinga lingaphansi kochungechunge olubanzi lwe-EN14420, oluhlanganisa izinhlobonhlobo zezinto zokuxhuma amapayipi (hose fittings), futhi lidlala indima ebalulekile ekuhlanganiseni izimfuneko ukuze amacoupling avela kubakhiqizi abahlukene akwazi ukushintshwa ngokuphephile emkhakheni ngaphandle kwengozi yokungahambisani noma izinkinga zokuqina kwengcindezi. Ububanzi be-EN14420-7 buhlanganisa izidingo zokuklama, ubukhulu, kanye nokubekezeleka (tolerances) kwamacoupling e-camlock ngosayizi osukela kwezincane kuye kwezinkulu zezimboni, kanye nezimfuneko zezinto zokwakha ezihambisana nezigaba zengcindezi ezinikezwe isigaba ngasinye somkhiqizo.

Ngaphakathi kohlaka lwe-EN14420-7, isilinganiso sokucindezela akusona nje inani eliqondile kodwa sixhumene ngokujulile nezinga lezinto ezisetshenziswayo ekukhiqizeni, ubukhulu bodonga lwe-coupling, kanye nezinga lokushisa lokudluliswayo. Istandard iyaqaphela ukuthi umfutho omkhulu wokusebenza we-coupling uyancipha njengoba izinga lokushisa likhuphuka, ngakho inikeza amajika okwehlisa kanye neziqondiso ezivumela onjiniyela ukuthi babale imikhawulo ephephile yokusebenza ngaphansi kwezimo ezahlukahlukene zokushisa. Ngaphezu kwalokho, i-EN14420-7 ikhuthaza ukushintshana ngokumisela ubukhulu obujwayelekile bezingalo, izibambo, nezihlalo zama-gasket, okusho ukuthi i-coupling evela kumkhiqizi othile ingaxhunywa ekugcineni kwehose evela komunye, inqobo nje uma bobabili behlangabezana nezinga elifanayo. Lokhu kugcizelela ekwenzeni izinto zibe sezingeni elijwayelekile akugcini nje ngokuthuthukisa ukuphepha kuzo zonke izindawo zokufaka, kodwa futhi kunika amaqembu okuthenga ukuzethemba okuthi angathola izingxenye kubakhiqizi abaningi, okuhlanganisa nabakhiqizi abahlonishwayo abafana ne-Varicpand International, ngaphandle kokudela ubuqotho bokucindezela noma ukunemba kobukhulu.

Izinga lokwakheka kwempahla (material grade) liyona into enomthelela omkhulu kunazo zonke ekunqumeni izinga lokucindezela (pressure rating) kwe-camlock coupling ye-EN14420-7, futhi abakhiqizi bahlukanisa imikhiqizo yabo ngokusekelwe ezakhiweni zemishini, ukumelana nokugqwala, kanye nokubekezelela izinga lokushisa lezinto abazisebenzisayo. Izinto ezivame kakhulu ezisetshenziselwa ama-camlock coupling zihlanganisa izinhlobo zensimbi engagqwali (stainless steel) ezifana ne-SS304 ne-SS316, i-aluminium, ithusi (brass), i-polypropylene (PP), ne-nylon, ngayinye inikeza ukulinganisela okuhlukile kwamandla, isisindo, izindleko, nokuhambisana namakhemikhali. Ukuqonda lokhu kwehluka kubalulekile kunoma yimuphi unjiniyela noma umphathi wokuthenga odinga ukukhetha i-coupling ezosebenza ngokuthembekile ngaphansi kwezingcindezi ezithile zokusebenza kuyilapho futhi ihlangabezana nezidingo zesabelomali nezimfuneko zemvelo, futhi lesi sigaba sihlukanisa kabanzi izici zokucindezela zezinga ngalinye elikhulu lempahla.

Izimbotshwa ze-camlock zensimbi engagqwali zimele izinga eliphezulu kakhulu mayelana namandla okumelana nokucindezela, lapho i-SS304 inikeza umfutho omkhulu wokusebenza ocishe ube ngu-25 bar kuya ku-30 bar kuye ngosayizi we-coupling, kuyilapho i-SS316 ingakwazi ukuphatha imfutho efanayo ngokumelana nokugqwala okuthuthukisiwe ezintweni ezinobudlova obukhulu. Amandla aphezulu okudonsa ensimbi engagqwali asho ukuthi lezi zimbotshwa zingamelana nemfutho enkulu yangaphakathi ngaphandle kokuguquka noma ukwehluleka, okwenza zibe ukukhethwa okuncamelayo ezinhlelweni zokucindezela okuphezulu kwe-hydraulic, imigqa yokudlulisa amakhemikhali, kanye nezinhlelo zasolwandle lapho amazinga okuphepha engakwazi ukuphazanyiswa. I-SS316, ikakhulukazi, iqukethe i-molybdenum, ethuthukisa kakhulu ukumelana nama-chloride, ama-acid, kanye nezindawo zamanzi anosawoti, okwenza kube yinto eyinhloko yezinto zasolwandle nasezindaweni ezisogwini lapho insimbi engagqwali ejwayelekile ingase ihlushwe ukugqwala kwe-pitting nokugqwala kwemifantu ngokuhamba kwesikhathi. Izakhiwo eziphakeme zomshini zensimbi engagqwali nazo zihumushela emazingeni amahle kakhulu okugqashuka komfutho, ngokuvamile alinganiswa ngokuphindwe kaningi kunomfutho omkhulu wokusebenza, okunikeza ungqimba olwengeziwe lokuphepha ezimweni ezingalindelekile zokukhuphuka komfutho noma ukushaya komfutho. Nakuba izindleko zokuqala zensimbi engagqwali ngaphezu kwe-aluminium noma ipulasitiki ziphakeme, impilo ende yesevisi, izidingo eziphansi zokunakekela, kanye nokusebenza okungaguquki ngaphansi kwezimo ezinzima kukwenza lezi zimbotshwa zibe utshalomali olungabizi kakhulu emisebenzini edinga kakhulu.

Ama-camlock couplings e-aluminium anikeza inhlanganisela ekhangayo kakhulu yokulinganisela kwengcindezi ephakathi, ngokuvamile cishe ku-15 bar kuya ku-20 bar umfutho omkhulu wokusebenza, kanye nokwakheka okulula okwenza kube lula ukuphatha futhi kunciphisa ukukhathala komsebenzisi ngezikhathi zokuxhuma ezivamile. Lolu hlobo lwempahla ludume kakhulu ezinhlelweni zezolimo, izinhlelo zokudlulisa uphethiloli, kanye nezimboni ezijwayelekile ezisebenzisa amanzi lapho izingcindezi zokusebenza ziphakathi futhi okubalulekile kungukusebenziseka kalula nokufinyeleleka ngentengo kunokumelana nengcindezi eyeqisayo. I-aluminium ngokwemvelo yakha ungqimba oluvikelayo lwe-oxide ebusweni bayo, olunikeza ukumelana nokugqwala okufanelekile ezindaweni ezomile nezinokugqwala okuncane, nakuba ingafaneleki emakhemikhali anamandla, ama-alkali, noma ukuchayeka emanzini anosawoti isikhathi eside. Ukushelela kwe-aluminium kuvumela ukulinganisela okunembile kokukhiqiza, kuqinisekisa ukuthi izingalo ze-cam zihlangana kahle futhi zinikeze ukuvala okuthembekile, futhi indawo yayo engenziwa i-anodized isho ukuthi ama-couplings angelashwa ukuze athuthukise ukumelana nokugqoka uma kudingeka. Ezinhlelweni ezingadingi amandla aphelele e-stainless steel, i-aluminium inikeza ibhalansi enengqondo yokusebenza nezindleko, futhi ithengiswa kabanzi abakhiqizi abafana ne-Varicpand International ngosayizi abahlukahlukene ukuze kuhlangatshezwane nezidingo zesevisi esheshayo.

Izingxube zensimbi zokuxhuma ezaziwa ngokuthi ama-brass camlock couplings zihlonishwa kakhulu ngenxa yokumelana kwazo nokugqwala okuhle kakhulu emanzini anosawoti nasezindaweni zasolwandle, zisebenza ngomfutho omkhulu ongaba ngu-20 bar kuya ku-25 bar, okubeka zona phakathi kwe-aluminium ne-stainless steel ngokwekhono lokumelana nomfutho. Ingxube yethusi ne-zinc yensimbi yethusi inikeza izakhiwo zemvelo zokubulala amagciwane, okuyinzuzo enkulu ekucubunguleni ukudla, emithini, nasemanzini okuphuzwayo lapho inhlanzeko iyinkinga enkulu. Ama-couplings ethusi nawo asebenza kahle kakhulu ezindaweni ezinokushisa okuphezulu, emelana namazinga okushisa aphakeme kangcono kune-aluminium neziningi zamapulasitiki kuyilapho egcina ukuqina kwakheka nokuqiniseka kokuvala ngisho nangemva kokusebenza isikhathi eside. Ukuminyana okuphezulu kwento kwenza izinsimbi zethusi zibe nomuzwa wokuqina, wokuphila isikhathi eside, abasebenzi abavame ukukuhlobanisa nekhwalithi, futhi ukuphelela kobuso okubushelelezi kunciphisa ukungqubuzana ezindaweni zokuhlala ama-gasket, okufaka isandla ekuxhumaneni okungavuzi. Abasebenzi bezimboni zasolwandle, abakhi bemikhumbi, nezindawo zokucubungula ezisogwini bavame ukukhetha ama-couplings ethusi ezinhlelweni zabo zokucisha umlilo nasemigqeni yokugeza emkhunjini ngenxa yokwethembeka kwabo okufakazelwe ezimweni ezinosawoti, lapho izinto ezishibhile zingagqwala ngokushesha zehluleke.

I-Polypropylene (PP) kanye ne-nylon camlock couplings zithatha ingxenye yokuqala yezinga lokucindezela, ngokuvamile zinikeza umfutho omkhulu wokusebenza osukela ku-6 bar kuya ku-10 bar, kodwa zigqama ezinhlelweni lapho ukumelana namakhemikhali nokulula kokuphatha kubaluleke kakhulu kunamandla okucindezela. Ama-polypropylene couplings amelana ngokukhethekile nezinhlobonhlobo ze-asidi, izisekelo, nama-solvents, okwenza kube yinto ekhethwayo ezinhlelweni zokulinganisa amakhemikhali, imishini yaselabhorethri, nokuphatha ngokuphephile uketshezi olunamandla lapho ama-metallic couplings engabola ngokushesha. Ama-nylon couplings, ngakolunye uhlangothi, anikeza ukumelana nokushisa okuthuthukisiwe uma kuqhathaniswa ne-polypropylene, emelana namazinga okushisa afinyelela ku-120°C kwezinye izinhlobo, kuyilapho esalula ngokwanele ukuthi asetshenziswe emishinini ephathwayo nasezintweni ezisebenza ngezandla. Zombili lezi zinto zimelana nokugqwala ngokwemvelo futhi azikaze zikabale, okwenza zifanelekele ukusetshenziswa ezindaweni ezinomswakama, ezitshalweni zokuhlanza amanzi, nasezimbonini lapho ukuchayeka kumswakama kungenakugwenywa. Nokho, amandla aphansi emishini yalezi thermoplastics asho ukuthi kufanele zisetshenziswe ngokuqinile ngaphakathi kwemikhawulo yazo yokucindezela, futhi ngokuvamile azinconywa ezinhlelweni zokucindezela okuphezulu kwe-hydraulic noma ezinhlelweni ze-steam ngenxa yengozi yokuqhuma noma ukwehluleka ukushisa ngaphansi kwezimo ezinzima.

Ukufingqa umehluko wokuhlukaniswa kwengcindezi phakathi kwezinto ezahlukene, ithebula elilandelayo lokuqhathanisa linikeza ireferensi esheshayo konjiniyela nabathengi:

Amandla emishini yezinto zokwakha athinta ngqo kokubili ingcindezi ephezulu yokusebenza kanye nengcindezi yokuqhuma kwe-camlock coupling, futhi ukuqonda lobu budlelwano kubalulekile ukuze kuqinisekiswe ukusebenza okuphephile ngaphansi kwezimo zangempela zomhlaba. Ingcindezi yokuqhuma yilapho i-coupling ingahluleka khona ngokuphazima kweso, futhi abakhiqizi abanomthwalo wemfanelo baklama imikhiqizo yabo ukuze ingcindezi yokuqhuma ivamise ukuba izikhathi ezine kuya kwezinhlanu ingcindezi ephezulu yokusebenza, banikeze isikhala esikhulu sokuphepha ngokumelene nokukhuphuka kwengcindezi okungalindelekile. Izinto ezinamandla aphakeme okudonsa, njenge-stainless steel, ngokwemvelo zinengcindezi ephezulu yokuqhuma, kuyilapho ama-thermoplastics afana ne-polypropylene enemingcele ephansi kakhulu yokuqhuma futhi kufanele avikelwe ngemishini yokukhulula ingcindezi kanye nokuhlolwa okuvamile ezinhlelweni ezidinga amandla amakhulu. Ubukhulu bodonga lomzimba we-coupling nalo ludlala indima ebalulekile, ngoba izindonga eziwugqinsi zingamelana nengcindezi ephezulu kungakhathaliseki ukuthi iyiphi into, futhi i-EN14420-7 icacisa ubuncane bobukhulu bodonga kusayizi ngamunye ukuze kuqinisekiswe ukusebenza okuphephile okufanayo kubo bonke abakhiqizi.

Izinga lokushisa lingenye yezinto ezibalulekile ezinomthelela ezilinganisweni zomfutho, ngoba izinto eziningi ziyakwazi ukuba buthakathaka lapho izinga lokushisa likhuphuka, futhi i-coupling elinganiswe ngo-25 bar ku-20°C lingase lifanelekele kuphela u-15 bar ku-80°C, kuye ngezakhiwo zokushisa zento. Insimbi engagqwali igcina amandla ayo kahle emazingeni aphezulu okushisa, kuyilapho i-aluminium nama-thermoplastics ewohloka ngokushesha, okudinga izici zokwehlisa ezilondolozayo ezicelweni zokushisa okushisayo. Ukuhambelana nendawo yokudlulisela kubalulekile ngokulinganayo, ngoba uketshezi olugqwalayo lungakwazi ukwenza buthakathaka i-coupling ngokuhamba kwesikhathi ngokuhlaselwa kwamakhemikhali, ukugqwala, noma ukuqhekeka kwe-stress corrosion, okunciphisa ngempumelelo izinga lomfutho layo ngaphansi kwevelu evamile noma ngabe i-coupling ibukeka iphelele ngokubonakalayo. Ukukhetha into ehambelana namakhemikhali nendawo yokudlulisela kubalulekile ngokufanayo nokufanisa izinga lomfutho elivamile, futhi ukunganaki le nto kungenye yezimbangela ezivame kakhulu zokwehluleka kwe-coupling ngaphambi kwesikhathi ezindaweni zezimboni. Onjiniyela kumele ngaso sonke isikhathi bacabangele umphumela ohlangene womfutho, izinga lokushisa, nokugqwala kwendawo yokudlulisela lapho belinganisa i-coupling yomjikelezo othile womsebenzi, kunokuba bathembele enanini lomfutho elivamile eliphrintiwe ekhasini lekhathalogi.

Ukukhetha i-camlock coupling efanele uhlelo lwakho kuqala kudinga ukuthi unqume ngokucacile ukuthi ingcindezi yokusebenza ephezulu kakhulu yesistimu yakho ingakanani, kuhlanganise nanoma yikuphi ukukhuphuka kwengcindezi okungenzeka ngesikhathi ukuqalisa kwepompo, ukuvalwa kwe-valve, noma ukunwetshwa okubangelwa ukushisa. Uma usunqume ububanzi bengcindezi, isinyathelo esilandelayo ukuhlola ububanzi bezinga lokushisa lokusebenza kanye nokwakheka kwamakhemikhali kwento edluliswayo, ngoba lezi zici zizonciphisa ukuthi yiziphi izinhlobo zezinto ezamukelekayo ohlelweni lwakho. I-stainless steel camlock coupling ngokuvamile iyona nketho ephephe kakhulu ezimweni zengcindezi ephezulu, izinga lokushisa eliphezulu, noma izinto ezidlelayo, kuyilapho i-aluminium ne-brass zifaneleka ezimweni eziphakathi nendawo lapho izindleko nezinto zemvelo zidlala indima enkulu. Emisebenzini ebandakanya amakhemikhali anamandla ngaphansi kwengcindezi ephansi, i-polypropylene noma i-nylon coupling ingase inikeze inani elingcono kakhulu, inqobo nje uma izinga lengcindezi lihlonishwa ngokuqinile futhi ukuhambisana kwamakhemikhali kuqinisekisiwe ngamashidi edatha omkhiqizi.

Usayizi womzimba wokuxhuma kanye nohlobo lokuxhumana nakho kuyizingqinamba ezibalulekile zokukhetha, ngoba ububanzi obukhulu ngokuvamile bubhekana nengcindezi ephezulu ye-hoop ekucindezelweni okunikeziwe futhi bungadinga izindonga eziwugqinsi noma izinto eziqinile ukuze kufinyelelwe izinga elifanayo. Usayizi ojwayelekile we-camlock wezimboni usukela ku-½ intshi kuya ku-6 amaintshi, futhi usayizi ngamunye uneprofayili yawo yokulinganisa ingcindezi ngisho nangaphakathi kwezinga lezinto ezifanayo, ngakho abathengi kufanele bahlale beqinisekisa isilinganiso esithile sodiamitha abayidingayo kunokuba bacabange ukuthi inani lifana kuyo yonke imikhawulo yosayizi. Ukukhethwa kwezinto ze-gasket kuyisici esivame ukunganakwa ekusebenzeni kokuxhuma, ngoba i-gasket ivamise ukuba yindawo ebuthakathaka ekhawulela amandla engcindezi yokuhlanganisa konke, njengoba izinto ezifana ne-NBR, i-EPDM, ne-VITON zinikeza amaphrofayili ahlukene okumelana nokushisa namakhemikhali. Ngokuthatha indlela ebanzi ecabangela ingcindezi, izinga lokushisa, into ekuzayo, usayizi, nokuhambisana kwe-gasket, onjiniyela bangakwazi ukukhetha ngokuqiniseka ukuxhuma okunikeza insiza ephephile, ethembekile, nehlala isikhathi eside, futhi amaqembu okuthenga angathola ukuxhuma okucacisiwe kumthengisi othembekile.Imikhiqizo ububanzi bazi ukuthi ikhwalithi nokuthobela imithetho kuyaqinisekiswa.

IVaricpand International isungule ukuthi ingumkhiqizi ohamba phambili wama-camlock couplings kanye nohlu olubanzi lwezinsiza zokuxhuma amapayipi ezimbonini, isebenzela amakhasimende emhlabeni wonke ngemikhiqizo ehambisana namazinga omhlaba aqinile afaka phakathi i-EN14420-7. Izindawo zokukhiqiza zenkampani zisebenzisa ubuchwepheshe obuthuthukile bokukhiqiza kanye nezinqubo eziqinile zokulawula ikhwalithi, okuqinisekisa ukuthi wonke ama-coupling aphuma efektri ahlangabezana namazinga wobukhulu, imininingwane yezinto zokwakha, kanye namazinga okucindezela okuthenjisiwe emibhalweni yomkhiqizo. IVaricpand ithola izinto zokusetshenziswa ezisezingeni eliphezulu kubathengisi abaqinisekisiwe, futhi yonke ibhetshi yezinto ilandeleka ngenqubo yokukhiqiza, okunikeza ukuziphendulela okugcwele kusukela ezintweni zokusetshenziswa kuya emikhiqizweni eqediwe, okuyimfuneko ebalulekile ezimbonini ezinemithombo eqinile yokuthobela imithetho. Uhlu lwemikhiqizo yenkampani luhlanganisaI-Camlock Coupling Yensimbi Engagqwali, Isixhumanisi se-Aluminum Camlock, Isixhumanisi se-Brass Camlock, futhi I-Camlock Coupling ye-PP ne-Nylon ngobukhulu obuhlukahlukene nokucushwa okuhlukahlukene, okunikeza amakhasimende umthombo owodwa wazo zonke izidingo zawo zokuxhuma.

Enye yezinzuzo ezinkulu zokuncintisana kweVaricpand International ukukwazi ukunikeza izinsizakalo zokwenza ngendlela oyifunayo, okuvumela amakhasimende ukuthi acacise izinto ezithile, amazinga okucindezela, izinhlobo zama-gasket, ngisho nokuqopha ngendlela oyifunayo noma ukubeka uphawu lwenkampani kuma-couplings azo ukuze kuhlangatshezwane nezidingo ezithile zokusebenza noma zamabhizinisi. Inkampani igcina amazinga amakhulu empahla emigqeni yayo yemikhiqizo edumile, okuhumushela ezikhathini ezimfushane zokulethwa nezinhlelo zokulethwa ezithembekile, okuyinto ebalulekile emabhizinisini angakwazi ukumelana nokuma isikhathi eside elinde izingxenye zokushintsha. Ithimba lezobuchwepheshe leVaricpand elizinikele liyatholakala ukunikeza ukubonisana ngobuchwepheshe, lisiza amakhasimende ekukhetheni i-coupling efanele izimo zalo ezithile zokucindezela, izinga lokushisa, nokuqukethwe, futhi inkampaniXhumana Nathiikhasi linikeza umzila oqondile wemibuzo nokusekelwa kwezobuchwepheshe. Ngokuzibophezela okuqinile ekuqinisekiseni ikhwalithi, wonke umugqa womkhiqizo udlula ekuhlolweni kwengcindezi nokuqinisekiswa kobukhulu ngaphambi kokuthunyelwa, futhi imibhalo ehlanganisa izitifiketi zokuhlola nezitifiketi zezinto ziyatholakala uma kuceliwe ukusekela izidingo zokuthobela nokuhlolwa kwamabhuku zamakhasimende. Ngokuhlanganisa ubuhle bokukhiqiza, uhlu oluphelele lwemikhiqizo, nensizakalo yamakhasimende ephendula ngokushesha, i-Varicpand International isiphenduke uzakwazi othembekile kubasabalalisi, ama-OEM, nabasebenzisi bokugcina abafuna ama-couplings anekhwalithi ephezulu athembekile, futhi labo abanesithakazelo sokufunda okwengeziwe ngenkampani bangavakashela i-Mayelana Nathi ikhasi ukuze uthole ukuqonda okujulile ngokusebenza kwayo namanani ayo.

Ama-camlock couplings asetshenziswa emikhakheni ehlukahlukene kakhulu yezimboni, futhi umkhakha ngamunye ubeka izidingo ezihlukile kumazinga okucindezela (pressure ratings) okuba nomthelela oqondile ekukhetheni izinto zokwakha. Embonini yokucubungula amakhemikhali, ngokwesibonelo, ukudluliswa kwama-asidi anamandla nezinto ezincibilikayo kudinga izinto zensimbi engagqwali (stainless steel) noma ama-polypropylene couplings kuye ngokugxila kanye nezinga lokushisa lamakhemikhali, kanti amazinga okucindezela ahlelwa ukuze ahambisane nokucindezela kwempompo kanye nemininingwane yamapayipi. Umkhakha kaphethiloli nowezimayini zikawoyela uncike kakhulu kuma-camlock couplings ensimbi engagqwali ukuze adlulise uphethiloli, alayishe amathangi, futhi asebenze ezindaweni zokuhluza, lapho amazinga aphezulu okugeleza kanye nokucindezela okuphezulu kudinga amandla amakhulu emishini kanye nokuxhumana okungavuzi. Umkhakha wokudla neziphuzo uthanda ama-brass nama-stainless steel couplings ngenxa yezakhiwo zazo ezicocekile, ukumelana nokugqwala, kanye nekhono lokumelana nezixazululo zokuhlanza ezinamandla ezisetshenziswa ezinhlelweni ze-CIP (clean-in-place), okuqinisekisa ukuthi amazinga okucindezela ahlala engaguquki phakathi nemijikelezo yokuhlanza ephindaphindwayo.

Imisebenzi yokucima umlilo nokusabela okuphuthumayo imele enye indawo ebalulekile yokusetshenziswa, lapho ama-brass camlock couplings evame ukutholakala emapayipini omlilo, ekuxhumaneni kwama-hydrant, nasemigqeni yokungenisa amanzi kwepompo, futhi lawa ma-couplings alinganiselwe ukuphatha izingcindezi eziphezulu zokugeleza ezihambisana nezinhlelo zokucisha umlilo. Izinhlelo zokunisela ezolimo zisebenzisa kakhulu ama-aluminium couplings alula ngoba kulula ukuwaphatha emasimini, amelana nokugqwala okuvela emanyundwini nasemakhemikhali okwelapha amanzi, futhi anikeza ukusebenza okwanele kwengcindezi kumapompo ajwayelekile okunisela. Imboni yemithi ifuna amazinga aphezulu kakhulu obumsulwa nokulandeleka, futhi ama-stainless steel couplings anezindawo ezihlanjululwe ngogesi avame ukucaciswa ukuze kuqinisekiswe ukuthi izinga lengcindezi liyagcinwa ngenkathi kuhlangabezana nezidingo eziqinile zokuhlanzeka nokuqinisekiswa. Kuyo yonke lezi zinhlelo zokusebenza, into efanayo ukuthi ukukhetha isigaba esifanele sokulinganisa ingcindezi ngezimo ezithile zokusebenza kuyisisekelo sokwethembeka kwesistimu, futhi ukusebenzisana nomthengisi onolwazi kubalulekile ekuzuzeni ukusebenza okuhle kanye nemiphumela yokuphepha.

Ukucindezela ngokweqile kungenye yezindlela eziyingozi kakhulu zokwehluleka kwamalungu okuxhuma e-camlock, futhi kubalulekile ukuthi abasebenzi bangaze badlule umfutho omkhulu wokusebenza obekiwe wohlobo lwento nokusayizi kokuxhuma. Wonke amalungu okuxhuma e-camlock amakwe ngokucacile ngegama lezinto zawo nosayizi, kodwa awahlale emakwe ngezinga lawo lokucindezela, ngakho abasebenzi kumele babheke ishidi ledatha yomkhiqizi futhi bagcine amarekhodi anembile alokho okufakiwe ohlelweni ngalunye. Ungaze usebenzise amalungu okuxhuma e-camlock ezinhlelweni zomhwamuko noma zomoya ocindezelweyo, ngoba lezi zinto zingabangela ukuthi ukuxhuma kuqhume ngamandla, okungase kubangele ukulimala okubi kubantu abaseduze, futhi izinga le-EN14420-7 likucacisa ngokusobala ukuthi lezi zinhlelo azifakiwe emkhakheni walo. Ukuhlolwa njalo kufanele kube yingxenye yanoma yiluphi uhlelo lokuvimbela ukuguga, lapho ochwepheshe behlola izimpawu zokuguga ezingalweni ze-cam, imifantu emzimbeni wokuxhuma, ukuwohloka kwegasket, nanoma yikuphi ukuphambuka okungase kuthikameze ukuvala komfutho. Noma yikuphi ukuxhuma okubonisa ukuguga okubonakalayo, imigodi yokugqwala, noma ukushintsha kombala ngenxa yokuhlaselwa ngamakhemikhali kufanele ngokushesha kushintshwe, ngoba izinga lokucindezela lokuxhuma okonakele empeleni alisebenzi noma ngabe lihlukaniswa kanjani ngokwegama.

Indlela efanele yokufaka ibalulekile ekugcineni umfutho olinganiselwe, futhi abasebenzi kufanele baqinisekise ukuthi umgomo we-hose ufakwe ngokugcwele emgodini we-coupling ngaphambi kokuvula izingalo ze-cam, ngoba ukungena okungaphelele kunciphisa kakhulu amandla e-coupling okubamba umfutho. Izingalo ze-cam kufanele zivalwe ngokuqinile kodwa hhayi ngamandla amaningi, futhi i-gasket kufanele ihlolwe ngaphambi kwayo yonke ukuxhumana ukuze kuqinisekiswe ukuthi iphelele, ihlezi kahle, futhi ihambisana nokudluliswayo. Kuyaphawuleka futhi ukuthi amazinga omfutho asebenza ezimweni ezimile, futhi izinhlelo ezingaphansi komfutho ojikelezayo, ukudlidliza, noma imiphumela ye-water hammer zingadinga ukukhethwa okuqaphela kakhulu kunalokho okushiwo izinga elilinganiselwe, ngakho ukubonisana nomkhiqizi ngezinhlelo eziguquguqukayo kuyelulekwa njalo. Ngokusebenzisa lezi zinqubo zokuphepha nokusebenza nabahlinzeki abathembekile njenge-Varicpand International, amabhizinisi anganciphisa kakhulu ubungozi bokwehluleka kwe-coupling, avikele abasebenzi bawo, futhi aqinisekise ukusebenza okungaphazamiseki ezinhlelweni zawo zokudlulisa uketshezi.

Ukuhlukaniswa kwezinga lokucindezela kwama-camlock couplings e-EN14420-7 ngokwezinga lezinto zokwakha kungumqondo oyisisekelo okumele wonke unjiniyela, uchwepheshe wokuthenga, kanye nochwepheshe wokulungisa ababandakanyeka ekuphathweni koketshezi bawuqonde ngokuphelele. Insimbi engagqwali, i-aluminium, ithusi, i-polypropylene, ne-nylon ngayinye inamandla ahlukile okumelana nokucindezela, ukumelana nokugqwala, kanye nezindleko ezenza zifanelekele izinhlelo ezahlukene zokusebenza, futhi inqubo yokukhetha kumele ngaso sonke isikhathi icabangele ukucindezela kokusebenza, izinga lokushisa, ukuhambisana noketshezi, kanye nezidingo zomkhawulo wokuphepha. Izinga le-EN14420-7 lihlinzeka ngohlaka oluqinisekisa ukufana kobukhulu nokwethembeka kokusebenza, okuvumela ama-couplings avela kubakhiqizi abahlukene ukuthi ashintshwe ngokuphephile futhi kunikeze abasebenzisi ukuzethemba kokwenza ukuthenga kwabo kube okujwayelekile kubaboneleli abaningi. I-Varicpand International ikulungele ukusekela amabhizinisi ngohla olubanzi lwama-camlock couplings asezingeni eliphezulu kuzo zonke izinhlobo ezinkulu zezinto zokwakha, isekelwa ubuchwepheshe bokukhiqiza, ubuchwepheshe bezobuchwepheshe, kanye nesevisi yamakhasimende ephendulayo eqinisekisa ukuthi ikhasimende ngalinye lithola isixazululo esifanele sezidingo zalo zokucindezela nokusebenza.

Ukuze kwenziwe isinqumo esinokwaziswa kakhulu sokuthenga, amabhizinisi ayakhuthazwa ukuba ahlole uhla olugcwele lwe-Ukuxhuma kweCamlockiyatholakala kwaVaricpand International futhi basebenzise amasevisi okubonisana nobuchwepheshe benkampani ukuze baqinisekise ukuthi i-coupling abayikhethile ihambisana nemingcele yokusebenza yabo. Noma ngabe udinga ama-couplings ensimbi engagqwali anomfutho ophezulu enkonzweni yamakhemikhali edingekayo, ama-aluminium fittings alula asetshenziselwa ezolimo, noma ama-brass couplings angagqwali ukugqwalala ezindaweni zasolwandle, uhlu lwemikhiqizo yakwaVaricpand luletha izixazululo ezithembekile, ezihambisana nemithetho, futhi ezinamanani ancintisanayo. Inkampani ibonisa imikhiqizo yayo ngenkuthalo ku-Izindaba inkundla, futhi amakhasimende afuna ukuthola imikhiqizo yakamuva kanye nokuqonda kwezimboni kuzothola izinsiza ezibalulekile lapho ukuqondisa izinqumo zawo. Ngokubeka phambili ukuphepha, ikhwalithi, nokulungile kobuchwepheshe ekukhetheni konke kokuxhuma, amabhizinisi awagcini nje ngokuvikela abantu bawo nempahla yawo kodwa futhi athola ukuthuthuka okulinganisekayo ekusebenzeni kahle kanye nezindleko zobunikazi esikhathini eside.

Izinga le-EN14420-7 lihlukanisa amazinga okucindezela kwe-camlock coupling ngokusekelwe ezingeni lezinto ezisetshenziswayo ekukhiqizeni, lapho i-stainless steel ngokuvamile ilinganiswa ku-25–30 bar, i-aluminium ku-15–20 bar, ithusi ku-20–25 bar, kanti i-polypropylene noma i-nylon inamandla okusebenza aphezulu angu-6–10 bar kuphela. Lokhu kuhlukaniswa kubalulekile ngoba kuqinisekisa ukuthi ama-couplings akhethwa ngokusekelwe emandleni awo emishini yangempela nokufaneleka kwawo kohlelo oluhlosiwe, kunikeza ireferensi ejwayelekile esiza onjiniyela emikhakheni ehlukene ukuthi benze izinqumo eziphephile nezihambisanayo.

Izinga lezinto zokwakha linquma amandla okudonsa kwe-coupling, umfutho wokuqhuma, kanye nokumelana nokugqwala nokushisa, konke lokhu kuthinta ngqo ukuthi ingakanani ingcindezi yangaphakathi i-coupling engakwazi ukuyimelana ngokuphephile ngesikhathi isebenza. Izinto ezinamandla aphezulu njenge-stainless steel zingabamba imfutho ephakeme kakhulu kune-thermoplastics, okusho ukuthi izinga lomfutho le-coupling ngokuyisisekelo lisebenza ngokuya ngokwakheka kwezinto zayo, futhi ukukhetha izinga elingalungile kungaholela ekwehlulekeni okuyinhlekelele ngaphansi kwezimo zokusebenza.

Izinga lensimbi engagqwali i-SS304 ne-SS316 zinikeza izingcindezi ephezulu kakhulu phakathi kwama-camlock couplings e-EN14420-7, ngokuvamile izingcindezi zokusebenza eziphezulu ezingama-25 kuya ku-30 bar kuye ngosayizi we-coupling nokujiya kodonga. I-SS316 inikeza inzuzo eyengeziwe yokumelana nokugqwala okuhle kakhulu ngenxa yokuqukethwe kwe-molybdenum, okwenza kube ukukhetha okuthandwayo ezindaweni ezinamakhemikhali anamandla, anosawoti, nengcindezi ephezulu lapho kudingeka khona amandla aphezulu nokuqina.

Cha, ama-camlock couplings e-aluminium akunconywa ukuthi asetshenziswe ezinhlelweni zokucindezela okuphezulu kwe-hydraulic ngoba izinga lokucindezela eliphezulu lokusebenza ngokuvamile lisukela ku-15 kuya ku-20 bar, okungokuvamile akwanele ezinhlelweni ze-hydraulic ezivame ukusebenza ngo-100 bar noma ngaphezulu. Ezinhlelweni zokucindezela okuphezulu, ama-couplings ensimbi engagqwali ayikhetho elifanele, futhi noma yikuphi ukuxhumana okusetshenziswa emsebenzini we-hydraulic kufanele kufaniswe nezinga lokucindezela langempela lohlelo ngomkhawulo wokuphepha owanele ukuvimbela ukwehluleka.

Ingcindezi yokusebenza, eyaziwa nangokuthi ingcindezi yokusebenza, iwumfutho wangaphakathi omkhulu i-coupling engakwazi ukuwumelana ngokuqhubekayo ngaphansi kwezimo ezijwayelekile zokusebenza, kuyilapho ingcindezi yokuqhuma iyindawo lapho i-coupling ingahluleka khona ngokuphazima kweso, ngokuvamile ilinganiswa ngokuphindwe kane kuya kuhlanu ingcindezi yokusebenza. Leli zinga lokuphepha liqinisekisa ukuthi ama-coupling angakwazi ukubhekana nokukhuphuka kwengcindezi yesikhashana ngaphandle kokwehluleka, kodwa kubalulekile ukuthi kungaze kusetshenziswe engcindezini yokuqhuma noma eduze kwayo ngoba imiphumela yokuqhuma kwe-coupling ingaba yingozi enkulu kakhulu.

Yebo, ama-camlock couplings e-polypropylene afaneleka kakhulu ekudlulisweni kwamakhemikhali ngoba anikeza ukumelana okuhle kakhulu nezinhlobonhlobo ze-asidi, izisekelo, nama-solvent, okwenza kube ukukhethwa okuthandwayo ezinhlelweni zokulinganisa nokufaka amalabhorethri lapho ukuhambisana kwamakhemikhali kubaluleke kakhulu. Nokho, izinga lokucindezela lilinganiselwe ku-6–10 bar kuphela, ngakho kufanele asetshenziswe kuphela ezinhlelweni ezinomfutho ophansi, futhi ukuhambisana kwamakhemikhali kufanele kuhlale kuqinisekiswa ngemininingwane yomkhiqizi ngaphambi kokufakwa.

Izinga lokushisa linomthelela omkhulu ezilinganisweni zokucindezela ngoba izinto eziningi zilahlekelwa amandla emishinini lapho izinga lokushisa likhuphuka, ngakho-ke ukuxhunywa okulinganiswa ku-25 bar ku-20°C kungase kufanele kuphela ku-15 bar emazingeni okushisa aphakeme. Insimbi engagqwali igcina amandla ayo kangcono emazingeni okushisa aphakeme kune-aluminium noma ama-thermoplastics, kodwa zonke izinto zidinga ukwehliswa kwezinga emazingeni okushisa aphakeme okusebenza, futhi lezi zici zokwehlisa kufanele ziqinisekiswe nomkhiqizi ukuze kuqinisekiswe ukusebenza okuphephile.

Ama-camlock coupling awanconzwa ukuthi asetshenziselwe umhwamuko noma umoya ocindezelwe ngoba lezi zinto zingabangela ukuthi izingalo ze-cam zikhulule ngokuzimela ngaphansi kwengcindezi, okuholela ekushayweni okunamandla kwe-coupling futhi kungase kulimaze kakhulu abantu abaseduze. Izinga le-EN14420-7 likucacisa ngokusobala ukuthi umhwamuko nomoya ocindezelwe akuwona ingxenye yokusetshenziswa kwalo, futhi abasebenzisi kufanele ngaso sonke isikhathi bakhethe izinhlobo ze-coupling eziklanyelwe ngokukhethekile lezi zinto ukuze kuqinisekiswe ukuphepha.

Izixhumanisi ze-camlock ze-EN14420-7 zitholakala ngosayizi abajwayelekile abasuka ku-½ intshi kuya ku-6 amaintshi, futhi usayizi uyathinta isilinganiso sokucindezela ngoba ububanzi obukhulu bubhekana nezingcindezi eziphakeme ze-hoop ekucindezelweni kwangaphakathi okunikeziwe. Lokhu kusho ukuthi isixhumanisi sensimbi engagqwali esingu-2-intshi singaba nesilinganiso sokucindezela esiphansi kancane kunesixhumanisi esingu-1-intshi esizinto ezifanayo, ngakho onjiniyela kumele bahlale beqinisekisa isilinganiso sokucindezela esithile sosayizi wabo odingekayo nokuhlanganiswa kwezinto.

Ungaqinisekisa ukuthobela i-EN14420-7 ngokucela izitifiketi zezinto zokwakha kanye nemibhalo yokuhlola kumkhiqizi, okufanele iqinisekise ukuthi ubukhulu bokuxhuma, izinto zokwakha, kanye nezilinganiso zomfutho ziyahambisana nezidingo zesehlakalo. Abakhiqizi abathembekile njenge-Varicpand International bahlinzeka ngemibhalo ebanzi yemikhiqizo yabo, futhi abathengi kufanele bahlale begcizelela ukuthola lezi zitifiketi ukuze kube nokulandeleka nokuqinisekiswa kwekhwalithi, ikakhulukazi ezimbonini ezinemithombo eqinile yokuthobela imithethonqubo.