Kuburikidza nekuunzwa kwezvinodiwa nezvinhu zvakagadziriswa, zvinodiwa zvekugadzira, zvinodiwa zvekugadzira, zvinodiwa zvekushanda, nzira dzekuyedza, zvinodiwa zvekushandisa sisitimu, uye hukama huripo pakati pekumanikidzwa nekupisa muzvigadzirwa zvepurasitiki zvepasi rose uye zviyero zvenzira dzekuyedza, unogona kunzwisisa kuvharwa kunodiwa kumavharuvhu epurasitiki. Zvinodiwa zvekutanga zvekudzora hunhu zvakaita sekuyedza, kuyedza torque uye kuyedza simba rekuneta. Muchimiro chetebhurawu, zvinodiwa zvekuyedza chigaro, kuyedza body sealing valve, kuyedza simba remuviri wevharuvhu, kuyedza kwenguva refu kwevharuvhu, kuyedza simba rekuneta uye torque yekushanda inodiwa kune zvinodiwa zvekushanda kwezvigadzirwa zvevharuvhu dzepurasitiki zvinopfupikiswa. Kuburikidza nekukurukurirana kwezvinetso zvakati wandei mumazinga epasi rose, vagadziri nevashandisi vevharuvhu dzepurasitiki vanomutsa kunetseka.

Sezvo huwandu hwemapaipi epurasitiki mumvura inopisa neinotonhora uye mashandisirwo einjiniya yemapaipi emaindasitiri huri kuramba huchiwedzera, kudzora mhando yemavharuvhu epurasitiki mumasisitimu emapaipi epurasitiki kuri kuramba kuchikosha.

Nekuda kwezvakanaka zvehuremu hushoma, kuramba ngura, kusanyungudika kwechikero, kubatana kwakabatana nemapombi epurasitiki, uye hupenyu hurefu hwemavharuvhu epurasitiki, mavharuvhu epurasitiki anoshandiswa mukugovera mvura (kunyanya mvura inopisa nekudziyisa) uye mamwe madhiri emuindasitiri. Muhurongwa hwemapaipi, zvakanakira zvekushandisa hazvienzaniswi nemamwe mavharuvhu. Parizvino, mukugadzirwa nekushandiswa kwemavharuvhu epurasitiki emumba, hapana nzira yakavimbika yekuadzora, zvichikonzera mhando isina kuenzana yemavharuvhu epurasitiki ekupa mvura nemamwe madhiri emuindasitiri, zvichikonzera kuvharika kwakaderera uye kubuda kwakanyanya mumashandisirwo einjiniya. Vakagadzira chirevo chekuti mavharuvhu epurasitiki haagone kushandiswa, zvichikanganisa kukura kwese kwekushandisa mapombi epurasitiki. Mwero wenyika yangu yemavharuvhu epurasitiki ari kugadzirwa, uye mwero wezvigadzirwa zvavo uye mwero wenzira zvakagadzirwa zvinoenderana nemwero wepasi rose.

Pasi rose, mhando dzemavharuvhu epurasitiki dzinosanganisira mavharuvhu ebhora, mavharuvhu emashavishavi, mavharuvhu ekutarisa, mavharuvhu ediaphragm, uye mavharuvhu eglobe. Maumbirwo echimiro anosanganisira mavharuvhu ane nzira mbiri, nzira nhatu uye nzira dzakawanda. Zvinhu zvakagadzirwa zvinonyanya kuve ABS,PVC-U, PVC-C, PB, PE,PPuye PVDF nezvimwewo.

Mumitemo yepasi rose yezvigadzirwa zvemavharuvhu epurasitiki, chinodiwa chekutanga zvinhu zvinoshandiswa mukugadzira mavharuvhu. Mugadziri wezvinhu izvi anofanira kunge aine curve yekukundikana inosangana nezvinodiwa zvezvigadzirwa zvemapaipi epurasitiki. Panguva imwe chete, bvunzo yekuvhara, bvunzo yemuviri wevharuvhu, uye bvunzo yekushanda kwenguva refu, bvunzo yesimba rekuneta uye torque yekushanda kwevharuvhu zvese zvakatemwa, uye hupenyu hwebasa rekugadzira vharuvhu yepurasitiki inoshandiswa kutakura mvura mumaindasitiri hunofungidzirwa kuti huve makore makumi maviri nemashanu.

Zvinodiwa zvikuru zvehunyanzvi zvemitemo yepasi rose

1 Zvinodiwa nezvinhu zvisina kugadzirwa

Zvinhu zviri muvharuvhu, bhoneti nebhoneti zvinofanirwa kusarudzwa zvichienderana neISO 15493:2003 “Masisitimu emapaipi epurasitiki eindasitiri-ABS, PVC-U uye PVC-C-Mapaipi uye zvinodiwa zvemasisitimu ekugadzirisa-Chikamu 1: Metric series” uye ISO 15494: 2003 “Masisitimu emapaipi epurasitiki eindasitiri-PB, PE, uyePP—Mapaipi uye KuisaMagadzirirwo eSisitimu—Chikamu 1: Metric Series.”

2 Zvinodiwa pakugadzira

a) Kana vharuvhu iine divi rimwe chete rekubata pressure, inofanira kunge yakanyorwa nemuseve kunze kwemuviri wevharuvhu. Vharuvhu ine dhizaini yakafanana inofanira kunge yakakodzera kuyerera kwemvura nenzira mbiri uye kupatsanurwa.

b) Chikamu chinovhara chinofambiswa nesimbi yevharuvhu kuti chivhure nekuvhara vharuvhu. Chinofanira kuiswa kumagumo kana chero nzvimbo pakati nekukweshana kana ma actuator, uye kumanikidzwa kwemvura hakugone kuchinja nzvimbo yacho.

c) Zvinoenderana neEN736-3, buri diki revharuvhu rinofanira kusangana nepfungwa mbiri dzinotevera:

— Kune chero mukana unotenderedzwa nechinhu chiri pamusoro pevharuvhu, haufanirwe kunge uri pasi pe90% yehuwandu hweDN hwevharuvhu;

— Kune vharuvhu ine chimiro chinoda kuderedza dhayamita yechinhu chinoyerera nacho, mugadziri anofanira kutaura gomba rayo repakati chairo.

d) Chisimbiso chiri pakati pehunde yevharuvhu nemuviri wevharuvhu chinofanira kutevedzera EN736-3.

e) Panyaya yekudzivirira kupera kwevharuvhu, dhizaini yevharuvhu inofanira kufunga nezvehupenyu hwebasa rezvikamu zvakasakara, kana kuti mugadziri anofanira kuratidza mumirairo yekushanda kurudziro yekutsiva vharuvhu yese.

f) Mwero wekuyerera kwemidziyo yese inoshanda nemavharuvhu unofanirwa kusvika 3m/s.

g) Kana zvichionekwa kubva pamusoro pevharuvhu, mubato kana vhiri reruoko revharuvhu rinofanira kuvhara vharuvhu nenzira yewachi.

3 Zvinodiwa pakugadzira

a) Hunhu hwezvinhu zvakatengwa hunofanirwa kuenderana nemirairo yemugadziri uye hunofanira kusangana nezvinodiwa zvechigadzirwa.

b) Muviri wevharuvhu unofanira kunge wakanyorwa kodhi yezvinhu zvisina kugadzirwa, dhayamita DN, uye PN yekumanikidza.

c) Muviri wevharuvhu unofanira kunge wakanyorwa zita remugadziri kana chiratidzo chekutengeserana.

d) Muviri wevharuvhu unofanira kunge wakanyorwa zuva rekugadzirwa kana kodhi.

e) Muviri wevharuvhu unofanira kunge wakanyorwa makodhi enzvimbo dzakasiyana dzekugadzira dzemugadziri.

4 Zvinodiwa pakushanda kwenguva pfupi

Kushanda kwenguva pfupi chinhu chinoongororwa nefekitori muchiyero chechigadzirwa. Chinonyanya kushandiswa pakuedza kuvhara chigaro chevharuvhu uye kuyedza kuvhara muviri wevharuvhu. Chinoshandiswa kutarisa kushanda kwekuvhara vharuvhu yepurasitiki. Zvinodiwa kuti vharuvhu yepurasitiki isabude mukati (kubuda kwechigaro chevharuvhu). , Hapafanirwe kuve nekubuda kwekunze (kubuda kwemuviri wevharuvhu).

Kuyedzwa kwekuvharwa kwechigaro chevharuvhu ndekwekuona mashandiro ehurongwa hwemapombi ekudzivirira vharuvhu; kuyedzwa kwekuvharwa kwemuviri wevharuvhu ndekwekuona kubuda kwesimbi yevharuvhu uye chisimbiso chemagumo ese ekubatanidza evharuvhu.

Nzira dzekubatanidza vharuvhu yepurasitiki kune sisitimu yepombi ndeidzi:

Kubatanidza magaro: dhayamita yekunze yechikamu chekubatanidza vharuvhu yakaenzana nedhayamita yekunze yepombi, uye magumo echikamu chekubatanidza vharuvhu akatarisana nemagumo epombi yekusanganisa;

Kubatana kwezvisungo: chikamu chekubatanidza vharuvhu chiri muchimiro chesoketi, iyo yakabatana nepaipi;

Kubatana kwesokisi remagetsi: chikamu chekubatanidza vharuvhu chiri muchimiro chesokisi ine waya yemagetsi inodziya yakaiswa padhayamita yemukati, uye chinobatanidza electrofusion nepombi;

Kubatana kwe socket hot-melt: chikamu chekubatanidza vharuvhu chiri muchimiro che socket, uye chakabatana nepombi ne socket hot-melt;

Kubatana kwezvisungo: Chikamu chekubatanidza vharuvhu chiri muchimiro chesoketi, iyo yakabatana uye yakasungirirwa nepaipi;

Kubatana kweringi yekuisa rabha pasoketi: Chikamu chekubatanidza vharuvhu rudzi rweringi ine ringi yekuisa rabha yemukati, iyo yakasungirirwa uye yakabatana nepombi;

Kubatana kweFlange: Chikamu chekubatanidza vharuvhu chiri muchimiro cheflange, iyo yakabatana neflange iri papombi;

Kubatana kweshinda: chikamu chekubatanidza vharuvhu chiri muchimiro cheshinda, iyo yakabatana neshinda iri papombi kana painofanira kusungirirwa;

Kubatana kwepamoyo: Chikamu chekubatanidza mavharuvhu chiri muchimiro chekubatana kwepamoyo, icho chakabatana nemapaipi kana zvigadziko.

Vharuvhu inogona kuva nenzira dzakasiyana dzekubatanidza panguva imwe chete.

Hukama huripo pakati pekumanikidzwa kwekushanda nekupisa

Kana tembiricha yekushandiswa ikawedzera, hupenyu hwemavharuvhu epurasitiki huchapfupikiswa. Kuti tirambe tichishanda zvakafanana, zvakakosha kuderedza kumanikidzwa kwekushandiswa.