Umehluko phakathi kokuvala okuthambileko nokuqinileko kwamavalvu:

Kokuthoma, kungakhathaliseki bona yi-valve yebholo nofanaivalvu yevivane, njll., kuneenvalo ezithambileko neziqinileko, thatha ivalvu yebholo njengesibonelo, ukusetjenziswa kweenvalo ezithambileko neziqinileko zamavalvu webhola kuhlukile, khulukhulu ngesakhiwo, begodu amazinga wokwenza amavalvu awafani.

Kokuthoma, indlela yesakhiwo

Isivalo esiqinileko sevalvu yebholo sisivalo sensimbi ukuya ensimbini, begodu kokubili ibholo lokuvala nesihlalo ziyinsimbi. Ukunemba kwemitjhini nekambiso kunzima, begodu kuvamise ukusetjenziswa emtjhinini ophakemeko, kanengi ngaphezu kwama-35MPa. Iimvalo ezithambileko ziimvalo hlangana neensimbi nezingasizo zensimbi, ezifana ne-nylon\PTFE, begodu amazinga wokukhiqiza ayafana.

Kwesibili, izinto zokuvala

Isivalo esithambileko nesiqinileko siyinto yokuvala isihlalo sevalvu, begodu isivalo esiqinileko senziwa ngomtjhini ngokunembileko ngezinto zesihlalo sevalvu ukuqinisekisa ukunemba okufanako nomgogodla wevalvu (ibholo), ngokuvamileko insimbi engagqwali nethusi. Ukuvala okuthambileko kutjho bona into yokuvala efakwe esihlalweni sevalvu akusiyinsimbi, ngombana into yokuvala ethambileko ine-elasticity ethileko, ngalokho iimfuneko zokunemba kokucubungula zizokuba phasi kunalezo zokuvala okuqinileko.

Okwesithathu, ikambiso yokukhiqiza

Ngebanga lebubulo elinengi lamakhemikhali, indawo yokusebenza yebubulo lemitjhini iyinkimbinkimbi, eminengi inamazinga womtjhiso aphezulu kanye nokugandeleleka okuphezulu, ukujamelana nokutjhayisana kwe-medium kukhulu, begodu ukugqwala kunamandla, nje ithekhnoloji sele ithuthukile, ukusetjenziswa kwezinto ezihlukahlukeneko kungcono, begodu ukucubungula nezinye izinto zingahambisana, kangangobana ivalvu yebhola enesivalo esiqinileko sele ikhuthazwe khulu.

Kuhlekuhle, isimiso se-valve yebholo yokuvala okuqinileko iyafana neyokuvala okuthambileko, kodwana ngombana kusivalo hlangana neensimbi, kuyatlhogeka bona kuqalwe ubudlelwano bokuqina hlangana kweensimbi, kanye nobujamo bokusebenza, bona ngiyiphi indlela okufuze isebenzise ngayo, njll. Ngokuvamileko, ukuqina kuyatlhogeka, begodu ibholo nesihlalo zihlale zigaywa ukufikelela ukuvala. Umjikelezo wokukhiqiza i-valve yebholo eqinileko mude, ukucubungula kuyinkimbinkimbi, begodu akulula ukwenza umsebenzi omuhle we-valve yebholo eqinileko.

Okwesine, ubujamo bokusebenzisa

Iimvalo ezithambileko zingafinyelela eendaweni eziphezulu, kuthi iimvalo eziqinileko zingaba phezulu nofana phasi ngokuya ngeemfuneko; Iimvalo ezithambileko zitlhoga ukuvikela umlilo, ngombana emazingeni womtjhiso aphezulu, into yesivalo esithambileko izokuvuza, ngesikhathi isivalo esiqinileko singabi nomraro lo; Iimvalo eziqinileko zingenziwa ngokugandeleleka okukhulu, kodwana iimvalo ezithambileko angeze zenziwa; Ngebanga lomraro wokugeleza kwe-medium, isivalo esithambileko angeze sasetjenziswa kezinye izehlakalo (njengezinye iinthombe ezibolako); Ivalvu yokugcina yokuvala okuqinileko ngokuvamileko ibiza khulu kunevalvu yokuvala ethambileko. Malungana nokukhiqizwa, akukho mehluko omkhulu hlangana nalokhu kokubili, into ekulu ngumehluko hlangana nezihlalo zevalvu, isivalo esithambileko asisiso isimbi, begodu isivalo esiqinileko siyinsimbi.

Okwesihlanu, ekukhethweni kwemitjhini

Ukukhethwa kwamavalvu we-seal athambileko naqinileko kusekelwe khulu emkhathini wenqubo, amazinga womtjhiso kanye nomfutho, umkhathi jikelele uneenhlayiya eziqinileko nofana unokuguga nofana amazinga womtjhiso angaphezu kwama-200 degrees, kuhle ukukhetha ama-valve aqinileko, ububanzi bukhulu kune-50, umehluko womfutho we-valve mkhulu, begodu i-torque ye-valve evulekileko nayo ivalwe, ivalwe eqinileko ivalvu kufanele ikhethwe lokha i-torque nayikulu, kungakaqalwa ukuvala okuthambileko nokuqinileko, izinga lokuvala lingafinyelela ezingeni lesi-6.

Nangabe unekareko yokuhlala okuqinilekoivalvu yevivane, ivalvu yesango,I-Y-strainer, ivalvu yokulinganisa,ivalvu yokuhlola, ungathintana nathi nge-whatsapp nofana nge-imeyili.