Ntau thiab ntau Suav li qub raug xa tawm mus rau ntau lub tebchaws thoob ntiaj teb, thiab tom qab ntawd ntau tus neeg siv khoom txawv teb chaws tsis nkag siab qhov tseem ceeb ntawm Tuam Tshoj lub valve naj npawb, hnub no peb yuav coj koj mus rau qhov kev nkag siab tshwj xeeb, vam tias tuaj yeem pab peb cov neeg siv khoom.
Nyob rau hauv Suav teb, hom li qub thiab cov ntaub ntawv ntau thiab ntau, kev npaj ntawm valve qauv kuj yog ntau thiab ntau complex; valve qauv yuav tsum feem ntau qhia txog hom valve, tsav hom, daim ntawv txuas, yam ntxwv nta, nominal siab, sealing nto cov ntaub ntawv, valve lub cev cov ntaub ntawv thiab lwm yam. Valve qauv standardization ntawm valve tsim, xaiv, faib, muab ib tug yooj yim txoj kev uas yuav cia cov neeg siv saib lub nameplate yuav paub cov qauv ntawm ib tug tshwj xeeb hom valve, cov ntaub ntawv thiab nta.
Tam sim no cia peb ua ib qho piv txwv:
D341X-16Q, txhais tau tias ①Npauj Npaim Valve-②Worm Iav ua haujlwm-③Ob chav Flanged hom-④Concentric Structure-⑤PN16-⑥ Cov Hlau Hlau.
Unit 1: Valve hom code
| Hom | Code | Hom | Code |
| Npauj Npaim Valve | D | Diaphragm Valve | G |
| Rooj vag Valve | Z | Kev nyab xeeb Valve | A |
| Kuaj Valve | H | Plug Valve | X |
| Pob Valve | Q | Pob Valve | FL |
| Globe Valve | J | Lim | GL |
| Siab Txo Valve | Y |
Tshooj 2: Valve Actuator code
| Tus actuator | Code | Tus actuator | Code |
| Solenoids | 0 | Bevel | 5 |
| Electromagnetic-hydraulic | 1 | Pneumatic | 6 |
| Electro-hydraulic | 2 | Hydraulic | 7 |
| iav | 3 | Pneumatic-hydraulic | 8 |
| Spur iav | 4 | Hluav taws xob | 9 |
Kauj Ruam 3: Valve txuas code
| Kev sib txuas | Code | Kev sib txuas | Code |
| Poj Niam Xov | 1 | Wafer | 7 |
| Sab nraud xov | 2 | Clamp | 8 |
| Flange | 4 | Ferrule | 9 |
| Weld | 6 |
Chav tsev 4, Valve qauv qauv Code
Npauj npaim valve qauv daim ntawv
| Kev tsim qauv | Code |
| Leveraged | 0 |
| Vertical Phaj | 1 |
| Tilt phaj | 3 |
Rooj vag valve qauv daim ntawv
| Kev tsim qauv | Code | |||
| Nce Ncej | Ntug | Resilient Rooj vag | 0 | |
| MetalGate | Ib Qhov Rooj | 1 | ||
| Ob chav rooj vag | 2 | |||
| Parallel | Ib Qhov Rooj | 3 | ||
| Ob chav rooj vag | 4 | |||
| Hom Tsis-Rising Wedge | Ib Qhov Rooj | 5 | ||
| Ob chav rooj vag | 6 | |||
Kos lub valve qauv daim ntawv
| Kev tsim qauv | Code | |
| Nqa | Ncaj | 1 |
| Nqa | 2 | |
| Swing | Ib Phaj | 4 |
| Multi Phaj | 5 | |
| Dual Phaj | 6 | |
Unit 5: Valve seal khoom code
| Seat sealing los yog cov khoom siv hauv ob sab phlu | Code | Seat sealing los yog cov khoom siv hauv ob sab phlu | Code |
| Nylon | N | Pasteurized Alloys | B |
| Monel | P | Enamels | C |
| Coj | Q | Ditriding hlau | D |
| Mo2Ti Stainless hlau | R | 18-8 Stainless hlau | E |
| Yas | S | Fluoroelastomer | F |
| Copper Alloy | T | Fiberglass | G |
| Roj hmab | X | Cr13 Stainless hlau | H |
| Cemented Carbide | Y | Roj hmab hauv ob sab phlu | J |
| Lub cev sealing | W | Monel alloy | M |
Unit 6, Valve siab qauv
Nominal siab qhov tseem ceeb tau qhia ncaj qha rau hauv cov lej Arabic (__MPa) Tus nqi ntawm MPa yog 10 npaug ntawm cov lej ntawm kilograms.Nruab nrab ntawm qhov thib tsib thiab thib rau, ib kab kab rov tav yog siv los txuas. Tom qab kab rov tav bar, yog qhia nyob rau hauv lub nominal siab tus nqi ntawm lub thib rau chav tsev. Lub thiaj li hu ua nominal siab yog lub siab uas lub valve muaj peev xwm nominally withstand.
Chav tsev 7, Valve Lub Cev Khoom Tsim Tus Qauv
| Lub cev khoom | Code | Lub cev khoom | code |
| Titanium thiab titanium alloys | A | Mo2Ti Stainless hlau | R |
| Carbon Steel | C | Yas | S |
| Cr13 Stainless hlau | H | Tooj liab thiab tooj liab alloys | T |
| chrome-molybdenum hlau | I | 18-8 Stainless hlau | P |
| Malleable Cam khwb cia hlau | K | Cast Iron | Z |
| Aluminium | L | Hlau Hlau | Q |
Lub luag haujlwm ntawm kev txheeb xyuas valve
Kev txheeb xyuas lub valve nyob rau hauv qhov tsis muaj qhov kos duab kos, poob lub npe thiab lub valve qhov chaw tsis tiav, kev siv cov li qub kom raug, vuam valve qhov chaw, kho thiab hloov cov khoom valve yog qhov tseem ceeb. Tam sim no cov cim valve, cov khoom siv thiab kev txheeb xyuas lub valve tau piav qhia hauv qab no:
Kev siv "kev paub txog lub valve" tau kawm paub, raws li daim ntawv teev npe thiab lub logo ntawm lub valve thiab lub valve ntawm cov xim xim. Koj tuaj yeem txheeb xyuas ncaj qha rau qeb ntawm lub valve, cov qauv qauv, cov khoom siv, lub taub nominal, lub siab nominal (lossis ua haujlwm siab), hloov tau tshaj tawm, ntsuas kub thiab kaw cov kev taw qhia.
1.Lub nameplate yog tsau rau ntawm lub valve lub cev los yog handwheel. Cov ntaub ntawv ntawm daim ntawv teev npe yog ua tiav ntau dua thiab qhia txog cov yam ntxwv ntawm lub valve. Raws li cov chaw tsim khoom ntawm daim ntawv teev npe, mus rau cov chaw tsim khoom rau lub valve hnav qhov chaw kos duab thiab cov ntaub ntawv; raws li lub Hoobkas hnub ntawm kev siv rau kev kho; Raws li daim ntawv teev npe muab cov kev mob ntawm kev siv, los txiav txim siab hloov cov gaskets, valve phaj cov ntaub ntawv thiab cov ntaub ntawv nrog rau kev txiav txim siab hloov lwm yam valve ntawm cov khoom.
2.Kev kos npe yog siv casting, ntawv sau thiab lwm txoj hauv kev hauv lub cev valve kos lub valve nominal siab, ua haujlwm siab, nominal caliber thiab nruab nrab ntws kev taw qhia.
3.Valve muaj ib hom kev kos npe qhib-kaw cov lus qhia, nws tau qhib lub ntsuas ntsuas lossis qhia qhov qhib thiab kaw ntawm xub. Throttle li qub, tsaus qia rooj vag li qub tau sau nrog cov lus qhia hloov rau ntawm qhov kawg ntawm lub log yog sau nrog tus xub taw qhia ntawm qhov qhib-kaw.