Kev tuav rooj vag Valve yog ib hom ntawm valve uas tsav lub rooj vag los ntawm kev qhib ntawm phau ntawv qhib thiab kaw cov raj xa dej. Nws cov tub ntxhais muaj nuj nqi yog kom ntseeg tau cov kua dej kom zoo, thiab nws tsis muaj peev xwm hloov kho tus nqi txaus.
1. Cov qauv sib xyaw
Cov Cheebtsam Tseem Ceeb
Rooj vag: qhov kev taw qhia txav mus los yog sib tshuam rau cov kev coj ntws ntawm nruab nrab. Nws yog feem ntau yog ib tug wedge-puab lossis parallel ob chav rooj vag qauv. Cov khoom sib khi yog ua los ntawm cov hlau lossis cov khoom loj (xws li PTFE) los ua ob-txoj hlua khi;
Valve BEM: Txuas cov kev sib txuas tes thiab lub rooj vag, thiab hloov cov lus tsa suab rau hauv rooj vag nqa los ntawm threading kis. Nws tau muab faib ua ib qho qhib steel (raug cov kab mob stroke pom) thiab lub qia dub (stroke invisible) tsim;
Lub cev valve: cov channel yog feem ntau coverch tsim los txo cov nruab nrab hauv nruab nrab. Cov khoom siv hluav taws xob tuaj yeem yog cov hlau pov tseg, stainless hlau lossis cam khwb cia hlau kom yoog rau cov khoom siab sib txawv (feem ntau siv pn10-pn40).
Ib pawg
Stuffing Box: Kho cov cim yooj yim gragle graphite lossis composite braided packing rau tiv thaiv kom tsis txhob xau ntawm lub valve qia;
Phau ntawv qhia Grake: kom ntseeg tau tias qhov tseeb txav trauectory ntawm lub rooj vag thiab txo qhov kev pheej hmoo ntawm eccentric hnav.
2. Ua haujlwm ua haujlwm
Qhib thiab kaw kev ua haujlwm: tig lub pob zeb sib zog ua rau lub rooj vag uas yuav tsum txav ntsug ntawm lub cev lub cev qhia kev tsheb nqaj hlau:
Cov txheej txheem kaw: lub rooj vag tau nias kom haum lub pob valve sealing nto los tsim cov hlau-hlau lossis hlau-elastomer sealface;
Qhib cov txheej txheem: Lub rooj vag tau nqa mus rau saum lub kab noj hniav, nruab nrab ntawm cov channel txaus siab tag, thiab kev poob siab yog ze rau xoom.
Sealing tshuab:
Thawj zaug sib khi nyob ntawm qhov ua kom yog qhov machision ntawm lub rooj vag thiab lub rooj zaum hauv;
Qhov nruab nrab siab txhim kho cov nyhuv sib khi thiab ua tau ua tiav xoom so (lub theem qis nce mus API 598 Txuj Ci VI).
3. Kev ua txuj ci
| Qhov Zoo | Kev txwv |
|---|---|
| Kev tsim tag nrho cov khoom lag luam uas tsis muaj zog poob qis | Tsuas yog txhawb nqa puv rau / tag nrho tawm, tsis muaj kev hloov kho muaj nuj nqi |
| Txhim khu kev qha sealing thiab lub sijhawm ntev kev pabcuam (txog 100,000 qhib thiab kaw lub sijhawm) | Nquag qhib thiab kaw tuaj yeem ua kom nrawm dua cov hnav ntawm cov chaw sib khi |
| Cov qauv yooj yim thiab cov nqi txij nkawm tsawg | Loj li qub muaj cov hauj lwm loj thiab yuav tsum tau txuas ntxiv tes |
4. Cov ntaub ntawv raug cai
Dej kho kom haum: Cov chaw tso dej rau network lub cev kab txiav-tawm tswj, tiv taus cov sediment cuam tshuam; Kev lag luam lag luam: Tshuaj Nroj Tsuag Daim teb hluav taws xob: roj av ntawm kev sib cais, cia siab rau ntawm cov hlau tsis sib haum rau kev tawg-pov thawj kev nyab xeeb.
Kev tuav rooj vag lub li qub yog dav siv hauv kev lag luam scenarios uas yuav tsum tau tswj kev tswj hwm qhov kev ntseeg siab thiab muaj kev vam meej ua haujlwm.
