Uri kunetseka kana PVC valve inogona kubata yako system system? Kukanganisa kunogona kutungamirira kukuputika kunodhura uye kuderera. Kuziva iyo chaiyo yekumanikidza muganho ndiyo nhanho yekutanga kune yakachengeteka yekumisikidza.

Mazhinji mavharuvhu ebhora ePVC akatemerwa kudzvinyirirwa kukuru kwe150 PSI (Pounds per Square Inch) patembiricha ye73°F (23°C). Chiyero ichi chinodzikira sezvo saizi yepombi uye tembiricha yekushanda inowedzera, saka gara uchitarisa zvakatemwa nemugadziri.

Ndinoyeuka hurukuro naBudi, maneja wekutenga muIndonesia anotenga zviuru zvemavharuvhu kwatiri. Akandifonera rimwe zuva, ndichinetsekana. Mumwe wemakasitoma ake, mugadziri wekondirakiti, akanga ane vharuvhu yakundikana pakuisa patsva. Mukurumbira wake waive parumananzombe. Patakaongorora, takaona kuti system yacho yaimhanya zvishomatembirichakupfuura zvakajairika, izvo zvaive zvakakwana kuderedza kushanda kwevharuvhupressure ratingpasi pezvinodiwa nehurongwa. Kwaive kutarisisa kuri nyore, asi kwakasimbisa pfungwa yakakosha: nhamba yakadhindwa pavharuvhu haisi iyo nyaya yese. Kunzwisisa hukama pakati pekumanikidza, tembiricha, uye saizi kwakakosha kune chero munhu anotsvaga kana kuisa izvi zvikamu.

Yakawanda sei kumanikidza kunogona kubata PVC bhora vharafu?

Iwe unoona chiyero chekumanikidza, asi iwe hauna chokwadi kana chinoshanda kune yako chaiyo mamiriro. Kufungidzira kuti nhamba imwechete inokodzera ese saizi uye tembiricha zvinogona kutungamira mukutadza kusingatarisirwe uye kudonha.

PVC bhora vharafu inogona kazhinji kubata 150 PSI, asi iyi ndiyo Cold Working Pressure (CWP) yayo. Iyo chaiyo dzvinyiriro iyo inogona kubata inodonha zvakanyanya sezvo tembiricha yemvura inokwira. Semuenzaniso, pa 140 ° F (60 ° C), chiyero chekumanikidza chinogona kutemwa nepakati.

Chinhu chakakosha kunzwisisa pano ndicho chatinodaidza kuti "pressure de-rating curve.” Iri izwi rehunyanzvi repfungwa iri nyore: sezvo PVC inodziya, inova yakapfava uye isina simba Nekuda kweizvi, iwe unofanirwa kushandisa kushomeka kwekuichengeta yakachengetekaPVC valveinoshanda nenzira imwe cheteyo. Vagadziri vanopa machati anoratidza iwe chaizvo kuti yakawanda sei kudzvanywa kwevharuvhu kunogona kubata pane tembiricha dzakasiyana. Semutemo wezvigunwe, kune yega yega 10 ° F inowedzera pamusoro pe ambient tembiricha (73 ° F), unofanirwa kudzikisa yakanyanya kubvumidzwa kudzvanywa ne10-15%. Ichi ndicho chikonzero kutsvaga kubva kumugadziri anopa zvakajekatechnical datayakakosha kune nyanzvi dzakaita seBudi.

Kunzwisisa Tembiricha uye Saizi Relationship

Uyezve, mavharuvhu makuru edhayamita anowanzo kuve nedhisheni yakaderera pane madiki, kunyangwe patembiricha imwe chete. Izvi zvinokonzerwa nefizikisi; nzvimbo yakakura pamusoro pebhora nemuviri wevharuvhu zvinoreva simba rose rinoitwa nekudzvanywa kukuru. Gara uchitarisa chiyero cheiyo chaiyo saizi yauri kutenga.

Chii chinogumira kumanikidzwa kwevharuvhu yebhora?

Iwe unoziva muganho wekumanikidza wePVC, asi izvo zvinofananidzwa sei nedzimwe sarudzo? Kusarudza zvinhu zvisiri izvo zvebasa repamusoro-soro kunogona kudhura, kana kutotyisa, kukanganisa.

Muganho wekumanikidza wevhavha yebhora unoenderana zvachose pazvinhu zvayo. Mavharuvhu ePVC ndeemasisitimu ekudzvinyirira akaderera (akatenderedza 150 PSI), mavharuvhu endarira ndeekumanikidzwa kwepakati (kusvika ku600 PSI), uye mavharuvhu esimbi esimbi ndeekumanikidza kwepamusoro, kazhinji kudarika 1000 PSI.

Iyi ihurukuro yandinowanzova nayo nemamaneja ekutenga akaita saBudi. Nepo bhizinesi rake guru riri muPVC, vatengi vake dzimwe nguva vane mapurojekiti akakosha anodakushanda kwepamusoro. Kunzwisisa musika wese kunomubatsira kushandira vatengi vake zvirinani. Haangotengesi chigadzirwa; anopa mhinduro. Kana kontrakta ari kushanda pamutsetse wekudiridza, PVC ndiyo yakakwana,sarudzo inodhura. Asi kana iyeye kondirakiti ari kushanda pane yakakwira-kudzvanywa mvura main kana sisitimu ine tembiricha yakakwira, Budi inoziva kurumbidza imwe simbi. Kuziva uku kunomugadza senyanzvi uye kunovaka kuvimbana kwenguva refu. Hazvisi zvekutengesa vharafu inodhura, asi iyorudyivharafu yebasa racho.

Kuenzanisa Common Ball Valve Materials

Sarudzo chaiyo inogara ichidzika kune zvinodiwa zvekushandisa: kudzvanywa, tembiricha, uye rudzi rwemvura inodzorwa.

Sezvauri kuona, simbi dzakaita sendarira nesimbi isina tsvina dzine simba rakanyanya kusimba kupfuura PVC. Iri simba remusikirwo rinovabvumira kuve nezvinomanikidza zvakanyanya pasina njodzi yekuputika. Nepo vachiuya nemutengo wakakwira, ivo isarudzo yakachengeteka uye inodiwa kana masisitimu anodzvinyirira achipfuura miganhu yePVC.

Ndeipi yakanyanya kudzvinyirira mhepo yePVC?

Iwe unogona kunge uchiedzwa kushandisa inokwanisika PVC kune yakamanikidzwa mhepo mutsara. Iyi ipfungwa yakajairika asi ine njodzi zvakanyanya. Kukundikana apa hakusi kuvuza; iko kuputika.

Iwe haufanirwe kushandisa yakajairwa PVC bhora mavharuvhu kana pombi ye compressed mweya kana chero imwe gasi. Iyo yakanyanya kukurudzirwa kudzvanywa kwemhepo ndeye zero. Gasi rakamanikidzwa rinochengetedza simba rakawanda, uye kana PVC ikakundikana, inogona kuparara kuita mapurojekiti akapinza, ane ngozi.

Iyi ndiyo yambiro yakakosha yekuchengetedza yandinopa vamwe vangu, uye chimwe chinhu chandinosimbisa kuchikwata cheBudi kuti vazvidzidzise. Ngozi yacho hainyatsonzwisiswi nemunhu wese. Chikonzero musiyano mukuru pakati pezvinwiwa nemagasi. Mvura yakaita semvura haigadzikane. Kana pombi yePVC inobata mvura ikatsemuka, dzvinyiriro yacho inodonha ipapo ipapo, uye unowana kubuda kuri nyore kana kutsemuka. Asi gasi, zvisinei, rinodzvanywa zvakanyanya. Zvakafanana nechitubu chakachengetwa. Kana pombi yePVC inobata mhepo yakamanikidzwa ikakundikana, simba rose rakachengetwa rinosunungurwa kamwechete, zvichikonzera kuputika kwechisimba. Iyo pombi haingotseki; inoputsika. Ndakaona mapikicha ekukuvadza kunogona kukonzera, uye injodzi hapana munhu anofanira kumbotora.

Hydrostatic vs. Pneumatic Pressure Failure

Ngozi inobva kurudzi rwesimba rakachengetwa muhurongwa.

• Hydrostatic Pressure (Mvura):Mvura haitsikiri nyore nyore. Kana mudziyo unobata mvura ukatadza kushanda, simba rinobva rarerutswa. Mhedzisiro inobuda. Simba racho rinopera nokukurumidza uye zvakachengeteka.
• Pneumatic Pressure (Mhepo/Gasi):Gasi compresses, kuchengetedza huwandu hwakawanda hwesimba rinogona kuitika. Kana mudziyo ukatadza, simba iri rinoburitswa zvakanyanyisa. Kukundikana kwacho kune ngwavaira, kwete zvishoma nezvishoma. Ndosaka masangano akaita seOSHA (Occupational Safety and Health Administration) aine mirau yakasimba yekupokana nekushandisa yakajairwa PVC yemhepo yakamanikidzwa.

Pakushandisa pneumatic, gara shandisa zvinhu zvakagadzirirwa uye zvakatemerwa magasi akamanikidzwa, semhangura, simbi, kana mapurasitiki akasarudzika akagadzirirwa chinangwa ichocho. Usamboshandisa pombi-giredhi PVC.

Chii chinonzi pressure rating yevharuvhu yebhora?

Iwe une vharafu muruoko rwako, asi iwe unofanirwa kuziva iyo chaiyo chiyero. Kusaverenga zvisizvo kana kuregeredza mamaki pamutumbi kunogona kutungamira mukushandisa vharafu yakavharwa mune yakakosha system.

Chiyero chepressure kukosha kwakadhindwa zvakananga pamutumbi wevharuvhu yebhora. Inowanzoratidza nhamba inoteverwa ne “PSI” kana “PN,” inomiririra yakanyanya Cold Working Pressure (CWP) patembiricha yakadzikama, kazhinji 73°F (23°C).

Ndinogara ndichikurudzira vatinoshanda navo kudzidzisa vashandi vavo vekuchengetera zvinhu nekutengesa kuti vaverenge mamaki aya nemazvo. I "ID card" yevharuvhu. Kana timu yaBudi ichiburitsa zvinhu, vanogona kuona ipapo ipapo kuti vagamuchirakwakaringana zvigadzirwa. Kana vatengesi vake vachitaura kune kontrakta, vanogona kunongedzera kuchiyero chiri pavharuvhu kuti vasimbise kuti inosangana nezvinodiwa zveprojekiti. Iyi nhanho iri nyore inobvisa chero fungidziro uye inodzivirira zvikanganiso pamberi pevhavha isati yasvika kunzvimbo yebasa. Iwo mamark ivimbiso kubva kumugadziri nezve mashandiro evharuvhu, uye kuzvinzwisisa kwakakosha pakushandisa chigadzirwa zvakachengeteka uye zvinobudirira. Chinhu chidiki diki chinoita mutsauko mukuru mukusimbisakudzora kwemhando mukati mese rekupa.

Maverengero Akanyorwa

Mavharuvhu anoshandisa macode akamisikidzwa kutaurira miganhu yawo. Heano anonyanya kufarirwa auchawana pane PVC bhora vharafu:

Somuenzaniso, unogona kuona“150 PSI @ 73°F”. Izvi zvakanyatsojeka: 150 PSI ndiyo yakanyanya kumanikidza, asi chete kana pazasi 73 ° F. Unogonawo kuona"PN10". Izvi zvinoreva kuti vharuvhu yakatemerwa kudzvanywa kwezita re10 Bar. Sezvo 1 Bar ingangoita 14.5 PSI, vharafu yePN10 inenge yakaenzana ne145 PSI valve. Gara uchitsvaga zvese zviri zviviri nhamba yekumanikidza uye chero inosanganisirwa tembiricha chiyero kuti uwane iyo yakazara mufananidzo.

Mhedziso

A PVC ball valve's pressure limit inowanzoita 150 PSI yemvura, asi chiyero ichi chinodonha nekupisa. Chinonyanya kukosha, usamboshandisa PVC kune compressed air systems.