1. Cov dej ntws tawm ntawm lub cev valve:
Yog vim li cas: 1. Lub cev valve muaj hlwv los yog tawg;2. Lub cev valve yog tawg thaum kho vuam
Kev kho mob: 1. polishing qhov xav tias tawg thiab etch lawv nrog 4% nitric acid tov.Yog tias pom muaj kab nrib pleb, lawv tuaj yeem tshwm sim;2. Excavate thiab kho cov kab nrib pleb.
2. Lub qia valve thiab nws cov mating poj niam xov yog puas los yog qia taub hau tawg los yog lubPOB VALVESqia yog bent:
Yog vim li cas: 1. Kev ua haujlwm tsis raug, kev quab yuam ntau dhau ntawm qhov hloov pauv, tsis ua haujlwm ntawm cov cuab yeej txwv, thiab tsis ua haujlwm ntawm kev tiv thaiv over-torque.;2. Xov haum yog xoob los yog nruj heev;3. Kev ua haujlwm ntau dhau thiab ua haujlwm ntev
 
Kev kho mob: 1. Txhim kho kev ua haujlwm, lub zog tsis muaj zog yog qhov loj heev;tshawb xyuas cov cuab yeej txwv, xyuas cov khoom siv tiv thaiv over-torque;2. Xaiv cov khoom tsim nyog, thiab kev sib dhos ua tau raws li qhov yuav tsum tau ua;3. Hloov cov khoom seem
 
Thib peb, lub bonnet sib koom nto nto
 
Yog vim li cas: 1. Tsis txaus bolt zawm quab yuam los yog sib txawv;2. Lub gasket tsis tau raws li qhov yuav tsum tau los yog lub gasket puas lawm;3. Qhov sib koom ua ke yog qhov tsis zoo
 
Kev kho mob: 1. Tighten bolts los yog ua kom qhov sib txawv ntawm lub qhov rooj npog flange tib yam;2. Hloov lub gasket;3. Disassemble thiab kho qhov sealing nto ntawm lub qhov rooj npog
Plaub, lub valve internal to:
 
Yog vim li cas: 1. Qhov kaw tsis nruj;2. Qhov sib koom ua ke yog puas;3. Qhov sib txawv ntawm cov tub ntxhais valve thiab lub qia valve loj heev, ua rau lub valve core sag los yog kev sib cuag tsis zoo;4. Cov khoom siv sealing tsis zoo lossis cov tub ntxhais valve yog jammed.
 
Kev kho mob: 1. Txhim kho kev ua haujlwm, rov qhib lossis kaw;2. Disassemble lub valve, rov sib tsoo lub sealing nto ntawm lub valve tub ntxhais thiab lub rooj zaum valve;3. Kho qhov sib txawv ntawm lub valve core thiab valve qia los yog hloov lub valve disc;4. Disassemble lub valve kom tshem tawm cov jams;5. Rov hloov lossis surfacing foob nplhaib
 
5. Lub valve core yog sib cais los ntawm lub valve qia, ua rau qhov hloov tsis tau:
 
Yog vim li cas: 1. kho tsis raug;2. Corrosion ntawm qhov sib txuas ntawm lub valve core thiab valve qia;3. Lub zog hloov pauv ntau dhau, ua rau muaj kev puas tsuaj rau kev sib tshuam ntawm lub valve core thiab valve qia;4. Lub valve core check gasket yog xoob thiab qhov kev sib txuas ntawm Hnav
 
Kev kho mob: 1. Ua tib zoo saib xyuas thaum kho;2. Hloov lub qhov rooj pas nrig ntawm cov khoom siv corrosion-resistant;3. Tsis txhob qhib lub valve quab yuam, los yog txuas ntxiv mus qhib lub valve tom qab lub lag luam tsis qhib tag nrho;4. Tshawb xyuas thiab hloov cov khoom seem uas puas lawm
 
Rau, muaj cov kab nrib pleb hauv lub valve tub ntxhais thiab lub rooj zaum valve:
 
Yog vim li cas: 1. Tsis zoo surfacing zoo ntawm daim ntawv cog lus nto;2. Qhov kub thiab txias sib txawv ntawm ob sab ntawm lub valve
 
Kev kho mob: kho cov kab nrib pleb, kev kho cua sov, lub tsheb polish, thiab zom raws li cov kev cai.
 
Xya, lub qia valve tsis ua haujlwm zoo lossis hloov tsis txav:
 
Yog vim li cas: 1. Nws yog kaw nruj heev nyob rau hauv lub txias txias, thiab nws expands mus rau tuag tom qab cua sov los yog nruj heev tom qab qhib tag nrho;2. Lub ntim yog nruj heev;3. Lub valve qia qhov sib txawv me dhau thiab nws nthuav dav;4. Lub qia valve tau sib phim nrog cov txiv ntoo Tight, los yog kev puas tsuaj rau cov xov sib txuam;5. Lub caj pas packing yog biased;6. Lub qhov rooj qia yog khoov;7. Qhov nruab nrab kub yog siab dhau lawm, lub lubrication tsis zoo, thiab lub valve qia yog corroded heev.
 
Kev kho mob: 1. Tom qab cua sov lub valve lub cev, sim qhib maj mam los yog qhib tag nrho thiab nruj thiab kaw dua;2. Kuaj qhib tom qab loosening lub caj pas ntim khoom;3. Ua kom lub valve qia qhov sib txawv kom tsim nyog;4. Hloov lub valve qia thiab hlau Poj niam;5. Hloov kho cov packing caj pas bolts;6. Ncaj lub qhov rooj pas nrig lossis hloov nws;7. Siv cov hmoov ntshiab graphite ua cov roj nplaum rau lub qhov rooj pas nrig
 
Yim, packing to:
 
Yog vim li cas: 1. Cov khoom ntim tsis raug;2. Lub caj pas packing tsis compressed los yog biased;3. Cov txheej txheem ntawm kev txhim kho cov ntim khoom tsis raug;4. Qhov saum npoo ntawm lub valve qia yog puas
 
Kev kho mob: 1. Xaiv cov ntim khoom kom raug;2. Tshawb xyuas thiab kho lub caj pas ntim kom tiv thaiv kev sib txawv ntawm qhov siab;3. Txhim kho lub ntim raws li txoj kev raug;4. Kho lossis hloov lub valve qia