Kev tu lub valve

1. Ua tib zoo saib xyuas qhov chaw cia ntawm li qub. Lawv yuav tsum tau muab cia rau hauv qhov chaw qhuav, zoo - qhov cua nyob sab hauv tsev, thiab ob qho kawg ntawm txoj kev yuav tsum tau thaiv.

 

2. Valves yuav tsum tau tshuaj xyuas tsis tu ncua, thiab cov av yuav tsum tau muab tshem tawm. Siv tshuaj tiv thaiv- xeb roj rau saum npoo.

 

3. Tom qab kev teeb tsa thiab siv, cov li qub yuav tsum tau tshuaj xyuas tsis tu ncua kom ntseeg tau tias kev ua haujlwm zoo li qub.

 

4. Txheeb xyuas qhov chaw sealing valve rau hnav thiab kho lossis hloov raws li xav tau.

 

5. Txheeb xyuas qhov hnav ntawm cov xov trapezoidal ntawm lub qia thiab lub valve qia txiv ntoo, thiab seb cov ntim khoom puas yog qhov qub lossis tsis zoo. Hloov raws li qhov tsim nyog.

 

6. Lub sealing kev ua tau zoo ntawm lub valve yuav tsum tau kuaj kom paub tseeb tias nws cov kev ua tau zoo.

 

7. Valves nyob rau hauv kev ua haujlwm yuav tsum zoo, nrog rau tag nrho cov bolts ntawm flanges thiab txhawb kom tiav, tsis muaj kev puas tsuaj threads, thiab tsis muaj looseness.

 

8. Yog hais tias lub handwheel ploj lawm, nws yuav tsum tau hloov tam sim ntawd; tsis txhob siv ib tug adjustable ciaj ntswj raws li ib tug hloov.

 

9. Lub caj pas ntim khoom yuav tsum tsis txhob raug misaligned los yog tsis muaj pre- zawm clearance.

 

10. Yog hais tias lub valve siv nyob rau hauv ib puag ncig hnyav, raug cuam tshuam los ntawm kev sib kis los ntawm nag, daus, plua plav, xuab zeb, thiab lwm yam, yuav tsum tau muab lub hau tiv thaiv rau ntawm lub valve qia.

 

11. Cov cim valve yuav tsum tsis muaj tseeb, raug, thiab meej, raws li qhov yuav tsum tau valve seals thiab kaus mom.

 

12. Cov tsho rwb thaiv tsev yuav tsum tsis muaj dents thiab tawg.

 

13. Tsis txhob tawm lub valve thaum lawv ua haujlwm, lossis muab cov khoom hnyav rau ntawm lawv.