U tseba hakae ka li-valve?

U tseba hakae kali-valve?

Selelekela: ka litekanyetso tsa machabeng tsa lihlahisoa tsa li-valve tsa polasetiki le mekhoa ea tlhahlobo ea litlhoko tsa thepa e tala, litlhoko tsa moralo le litlhoko tsa tlhahiso, litlhoko tsa ts'ebetso, mokhoa oa tlhahlobo, litlhoko tsa ts'ebeliso ea sistimi le ts'ebeliso ea khatello le mocheso, joalo-joalo, kamano e teng lipakeng tsa eona e ka utloisisa tlhoko. tlhahlobo ea tiiso ea li-valve tsa polasetiki, tlhahlobo ea torque le tlhahlobo ea matla a mokhathala joalo-joalo litlhoko tsa mantlha tsa taolo ea boleng. Litlhoko tsa tlhahlobo ea tiiso ea setulo sa valve, tlhahlobo ea tiiso ea 'mele oa valve, tlhahlobo ea matla a' mele oa valve, tlhahlobo ea nako e telele ea li-valve, tlhahlobo ea matla a mokhathala le torque ea ts'ebetso li akaretsoa ka mokhoa oa litafole. Ka puisano ea mathata a 'maloa ho litekanyetso tsa machaba, bahlahisi le basebelisi ba li-valve tsa polasetiki ba amehile. Ka karolo e ntseng e eketseha ea lipeipi tsa polasetiki phepelong ea metsi a batang le a chesang le boenjiniere ba lipeipi tsa indasteri, taolo ea boleng ba valve ea polasetiki tsamaisong ea liphaephe tsa polasetiki e ba bohlokoa le ho feta. Hobane valve ea polasetiki e na le melemo ea boima bo bobebe, ho hanyetsa kutu, ha ho na sekala sa adsorption, le khokahanyo ea liphaephe tsa polasetiki le bophelo bo bolelele ba ts'ebeletso, valve ea polasetiki ka phepelong ea metsi (haholo-holo metsi a chesang le a futhumatsang) le tšebeliso ea liindasteri tsa maro a mang a pompo ea polasetiki. Sistimi, melemo ea ts'ebeliso ea eona ke li-valve tse ling tse ke keng tsa bapisoa. Hona joale tlhahiso ea malapeng le tšebeliso ea li-valve tsa polasetiki, taolo ea eona ha e na tsela e ka tšeptjoang, phepelo ea metsi le li-valve tse ling tsa polasetiki tse sebelisoang indastering ea boleng ba lihlahisoa ha li lekane, ts'ebeliso ea boenjiniere ea lax e koetsoeng le ts'ebetso ea ho lutla e tebile, ho thehoa ha polasetiki. valve ha e khone ho e sebelisa, e ama nts'etsopele ea kakaretso ea kopo ea phala ea polasetiki. Tekanyetso ea naha ea valve ea polasetiki naheng ea rona e ntse e tsoela pele ho etsoa, ​​​​sehlahisoa sa eona le maemo a mokhoa a etsoa ho latela maemo a machabeng. Mefuta ea machaba ea li-valve tsa polasetiki ke haholo-holo valafo ea bolo, valve ea serurubele, valve ea ho hlahloba, valve ea diaphragm le valve ea lefats'e, sebopeho sa mofuta o ka sehloohong oa li-valve tse peli, tse tharo le tse ngata, lisebelisoa tse ka sehloohong tse tala ke ABS, PVC-U, PVC- C, PB, PE, PP le PVDF joalo-joalo. Boemong ba machaba ba lihlahisoa tsa li-valve tsa polasetiki, pele ho tsohle, lisebelisoa tse tala tse sebelisoang ha ho etsoa li-valve lia hlokahala. Baetsi ba lisebelisoa tse tala ba tlameha ho ba le li-curve curves ho latela maemo a lihlahisoa tsa liphaephe tsa polasetiki. Ka nako e ts'oanang, tlhahlobo ea ho tiisa, tlhahlobo ea 'mele oa li-valve, tlhahlobo ea nako e telele ea ts'ebetso, teko ea matla a mokhathala le torque e sebetsang ea valve eohle,' me bophelo ba tšebeletso ea moralo oa valve ea polasetiki e sebelisetsoang ho tsamaisa metsi a indasteri ke lilemo tse 25. TS EN ISO 15493 Sistimi ea liphaephe tsa polasetiki bakeng sa ts'ebeliso ea indasteri - ABS, PVC-U le PVC-Pipe le lits'ebetso tse loketseng - Litlhaloso tsa liphaephe le lisebelisoa tsa ho kenya - Litlhaloso tsa karolo ea pele ea 'mele oa valve, bonnet le bonnet li tla lumellana le ISO 15493:2003 15493: 2003 Plastics Piping Systems bakeng sa tšebeliso ea indasteri - ABS, PVC-U le PVC-C - Pipe le Lisebelisoa tse loketseng - Litlhaloso tsa karolo ea pele ea 'mele oa valve, bonnet le bonnet li tla lumellana le ISO 15493:2003 Plastic Piping Systems bakeng sa Tšebeliso ea Liindasteri - ABS, PVC-U le PVC-C - Pipe le Fitting Systems Metric series le ISO. 15494:2003 Plastics Piping Systems bakeng sa Tšebeliso ea Liindasteri — PB, PE le PP — Liphaephe le Fittings Systems tlhaloso - *** Karolo: Metric Series. A) Haeba valve * e na le tataiso e tsamaisang, e tla tšoauoa ka motsu ka ntle ho 'mele oa valve. Li-valve tsa moralo oa symmetrical li tla tšoanela ho phalla ka litsela tse peli le ho itšehla thajana. B) Karolo ea ho tiisa e khannoa ke kutu ea valve ho bula le ho koala valve. E lokela ho behoa qetellong kapa boemong leha e le bofe bo bohareng ka ho ferekana kapa actuator, 'me khatello ea mokelikeli e ke ke ea fetola boemo ba eona. C) Ho ea ka EN736-3, e nyenyane ka ho fetisisa ka lesoba ka har'a sekoti sa valve e lokela ho lumellana le lintlha tse peli tse latelang: - bakeng sa sebaka leha e le sefe sa phallo ea phallo ea valve, ha ea lokela ho ba ka tlase ho 90% ea boleng ba valve DN; Bakeng sa li-valve tse hlokoang ka mokhoa oa ho fokotsa lesoba la phallo e mahareng, moetsi o tla bolela bonyane ka lesoba. D) Tiiso lipakeng tsa kutu le 'mele e tla ba ho latela EN736-3. E) Mabapi le ho hanyetsa ha li-valve, moralo oa li-valve o tla ela hloko bophelo ba tšebeletso ea likarolo tse tsofetseng, kapa moetsi o tla bontša ka litaelo tsa ts'ebetso litlhahiso tsa ho nkela valve eohle sebaka. F) lisebelisoa tsohle tse sebetsang tsa li-valve li tla ba le sekhahla sa phallo ea 3m/s. G) Ha e talingoa ho tsoa ka holim'a valve, sekoti sa valve kapa letsoho la letsoho le tla koala valve ho ea ka nako. 3 Litlhoko tsa tlhahiso a) Ts'ebetso ea thepa e rekiloeng e tla lumellana le litlhaloso tsa moetsi oa thepa e tala le ho finyella litekanyetso tsa sehlahisoa. B) Khoutu ea thepa e tala, bophara ba DN le khatello ea lebitso la PN e tla tšoauoa 'meleng oa valve. C) Sehlopha sa li-valve se tla tšoauoa ka lebitso la moetsi kapa letšoao la khoebo. D) Sehlopha sa valve se tla tšoauoa ka letsatsi la tlhahiso kapa nomoro ea khoutu. E) Sehlopha sa li-valve se tla tšoauoa ka khoutu ea libaka tse fapaneng tsa moetsi. Litlhoko tse 4 tsa nako e khuts'oane tsa ts'ebetso ea nako e khuts'oane maemong a sehlahisoa ke lisebelisoa tsa tlhahlobo ea fektheri, haholoholo ho etsa tlhahlobo ea tiiso ea setulo sa valve le tlhahlobo ea ho tiisa 'mele, e sebelisetsoang ho lekola ts'ebetso ea tiiso ea li-valve tsa polasetiki, li-valve tsa polasetiki tse ka khonang. ho se be le ts'ebetso ea ho lutla ka hare (ho lutla setulong sa valve), hape e ke ke ea ba le ts'ebetso ea ho lutla kantle (ho lutla ha valve). Teko ea ho tiisa setulo sa valve ke ho netefatsa ts'ebetso ea sistimi ea liphaephe tsa ho itšehla thajana; Teko ea tiiso ea 'mele oa li-valve ke ho netefatsa ho lutla ha valve stem seal le lenonyeletso la valve. Belofo ea polasetiki le tsamaiso ea liphaephe li kopantsoe ka ho hokahanya ha tjheseletsa: bophara bo ka ntle ba karolo ea ho kopanya belofo bo lekana le bophara bo ka ntle ba phala, 'me sefahleho sa ho qetela sa karolo ea ho hokahanya ha valve se kopantsoe le sefahleho sa ho qetela sa phala; Khokahano ea li-socket bonding: karolo e kopanyang ea valve e ka mokhoa oa socket, e kopantsoeng le lisebelisoa tsa pipe; Khokahano ea socket ea motlakase: karolo ea khokahanyo ea li-valve ke foromo ea sokete e nang le terata e futhumatsang ea motlakase ka har'a bophara bo ka hare, 'me e kopantsoe ka motlakase le phala; Socket hot melt connection: karolo ea ho kopanya li-valve ke foromo ea sekoti, 'me phala e kopantsoe le sekoti se chesang se chesang; Khokahano ea li-socket bonding: karolo ea khokahanyo ea li-valve e ka mokhoa oa sokete, 'me phala e kopantsoe le khokahanyo ea socket; Ho jara lesale la ho tiisa rabara: karolo ea khokahano ea li-valve ke mokhoa o nang le lesale la ho tiisa rabara, 'me phala e hokahane le sokete; Khokahano ea Flange: karolo ea khokahano ea li-valve e ka sebopeho sa flange, e hokahaneng le flange holim'a phala; Khokahano ea likhoele: karolo ea khokahanyo ea li-valve e ka sebopeho sa khoele, e hokahaneng le khoele holim'a phala kapa lisebelisoa tsa phala; Khokahano e phelang: karolo ea khokahanyo ea valve e ka mokhoa oa khokahanyo e phelang, 'me lipeipi kapa lisebelisoa tsa pipe li hokahane. Lihokelo tse fapaneng li ka etsoa ka nako e le 'ngoe holim'a valve e le 'ngoe. Ka ho eketseha ha mocheso, bophelo ba tšebeletso ea li-valve tsa polasetiki bo lokela ho khutsufatsoa. Ho boloka bophelo bo ts'oanang ba ts'ebeletso, o hloka ho fokotsa khatello ea ts'ebeletso.
U tseba hakae ka li-valve?
Pipe flanges haholo-holo kenyeletsa integral (IF), plate flat welding (PL), neck flat welding (SO), neck butt welding (WN), socket welding (SW), screw (Th), butt welding ring loose sleeve (PJ/SE )/(LF/SE), lesale la tjheseletsa le bataletseng le hlephileng (PJ/RJ) le sekoaelo sa flange (BL), jj.
Motheo oa valve
1, tsela e ka sehloohong ea ho hokahanya ha valve ke: flange, khoele, welding, clamping
2, mosebetsi oa motheo oa valve: khaola sehare, fetola phallo, fetola tsela ea ho phalla
3, litekanyetso tsa motheo tsa valve ke: khatello ea lebitso la PN, bophara ba lebitso la DN
4, khatello ea li-valve - boemo ba mocheso: lisebelisoa tse fapaneng, mocheso o fapaneng oa ho sebetsa, ha u lumelle khatello ea ho sebetsa e fapane
5, litekanyetso tsa pipe flange haholo-holo li na le litsamaiso tse peli: tsamaiso ea Europe le tsamaiso ea Amerika.
Ho khetholla tse loketseng ka boemo ba khatello:
Tsamaiso ea Europe ke PN0.25, 0.6, 1.0, 1.6, 2.5, 4.0, 6.3, 10.0, 16.0, 25.0, 32.0, 40.0MPa;
Sistimi ea Amerika ke PN1.0(CIass75), 2.0(CIass150), 5.0(CIass300), 11.0(CIass600), 15.0(CIass900), 26.0(CIass1500), 42.0(CIass2500)MPa.
Li-valve tse tloaelehileng (ka kakaretso).
1, mofuta oa khoutu ea mofuta oa Z, J, L, Q, D, G, X, H, A, Y, S ka ho latellana: valve ea heke, valve ea globe, valve ea throttle, valve ea bolo, valve ea serurubele, diaphragm valve, plug valve, hlahloba valve, valve ea tšireletso, valve e fokotsang khatello, valve ea sefi
2, khoutu ea khokahano ea valve 1, 2, 4, 6, 7 ka ho latellana: 1 - khoele e ka hare, 2 - khoele ea kantle, 4 - flange, 6 - welding, 7 - clamp
3, khoutu ea phetisetso ea valve ke 9, 6, 3 ka ho latellana: 9 - motlakase, 6 - pneumatic, 3 - turbo worm
4, khoutu ea 'mele ea li-valve Z, K, Q, T, C, P, R, V ka ho latellana: tšepe e bohlooho, tšepe e ka tšeptjoang, tšepe ea ductile, koporo le alloy, tšepe ea carbon, chromium nickel stainless steel, chromium nickel molybdenum. tšepe e sa hloekang, chromium molybdenum vanadium tšepe
5, tiiso ea setulo kapa khoutu ea lesela R, T, X, S, N, F, H, Y, J, M, W ka ho latellana: tšepe e sa hloekang ea austenitic, alloy ea koporo, rabara, polasetiki, polasetiki ea nylon, polasetiki ea fluorine, Cr stainless steel , motsoako o thata, lesela la rabara, motsoako oa Monel, lisebelisoa tsa 'mele oa valve
6, 'mele oa li-valve tsa tšepe ha o tšoanelehe bakeng sa ketsahalo ena: mokelikeli o tukang le o phatlohang; Moo mocheso oa tikoloho o leng ka tlase ho -20 ℃; Khase e hatelitsoeng; Mouoane oa metsi kapa khase e metsi e nang le metsi a mangata.
Haholo-holo mofuta oa ho koala ha flange o kenyelletsa: sefofane se felletseng (FF), bokaholimo ba protrusive (RF), concave (FM) convex surface (M), tenon (T) groove (G) bokaholimo, bokaholimo ba ring connection (RJ), joalo-joalo.