Pob valve weld: tsim thiab daim ntawv thov

Pob li qub pab raws li kaw-off li qub nyob rau sab nraum zoov pipelines (gas thiab roj pipelines, pipelines kiag kev loj, pipelines, tshuaj nplaum tawg thiab hluav taws tej lag luam, thiab lwm yam). Ib variation ntawm lub pob valve yog ib lub pob valve weld.

Nws yog siv raws li ib tug locking ntaus ntawv nyob rau hauv thiaj li yuav kiag li thaiv cov ndlwg ntawm cov circulating nrab nyob rau hauv lub raj dej. Xws li ib tug nruab nrab tej zaum yuav roj thiab nws cov khoom, dej, nkev, huab cua, dej cawv khoom lwm txhoj puab heev ib puag ncig.

Qhov no hom ntawm crane yog yus nyob rau hauv hais tias nws yog kev cob cog rua rau lub conduit los ntawm Vuam. Pob valve weld twb tsis muaj detachable qhov chaw (flanges, couplings thiab cov zoo li), thiab qhov no pab kom lub siab tshaj plaws kev ceev ntawm lub compound thiab cov minimization ntawm txia nyob rau hauv cov pob qij txha.

kev faib

Pob li qub rau welding cov dej num raws li cov hom ntawm tsav:

• txhais tes;
• muaj ib tug Actuator (manufactured nyob rau hauv tshwj xeeb kev txiav txim uas lub raj dej);
• Tes nrog iav;
• muaj ib tug pneumatic Actuator (manufactured nyob rau hauv tshwj xeeb kev txiav txim uas lub conduit).

Feem ntau, ib phau ntawv pob valve yog siv rau Vuam nrog tus me qhov ntev ntawm tej nqe vaj lug, nrog ib tug tsawg los yog nruab nrab siab nyob rau hauv lub conduit. Yog hais tias lub siab nyob rau hauv cov yeeb nkab saum toj no qhov nruab nrab, thaum lawv lawv tus kheej kav ntawm loj los yog medium txoj kab uas hla, nws yog qhov zoo tshaj plaws los mus siv ib tug crane nrog hluav taws xob los yog pneumatically actuated valve.

Tsis tas li ntawd, lub pob valve yuav welded thiab tag nrho bore nepolnoprohodnym (txwv kom muab zais los ntawm hom ntawm zaj).

Qhuav thiab cov qauv ntawm cov pob valve

Cheebtsam ntawm lub vaj tse pob li qub manufactured los ntawm Vuam (kev twb kev txuas yuav tsum tau check thiab txhim khu kev qha). Dawb do floating pob sealing rooj zaum ntawm PTFE.

Nyob rau hauv kev siv daim tseem cia nrog technology. Tus thawj xib fwb feature ntawm tus dais no yog ib tug steel molded vaj tse nyob. Thaum lub sij hawm zus tau tej cov thawj tuaj txoos ua ke txhav tas mechanism, thiab ces tso rau hauv lub cev. Kav ua tib zoo hlab.

Cov no ib tug folding tsim, uas yuav tsis tau txij nkawm.

Pob valve steel weld muaj ib tug tshwj xeeb nrog cov qauv. Nyob rau hauv cov ntaub ntawv ntawm no siv lub coj txheej txheem nws tus kheej compensates. Qhov no yog facilitated los free- khoom uas yog txheej txheem ntawm lub springs, muaj ib tug sealant. Yog hais tias koj hnav ib daim, lub caij nplooj ntoos hlav thiab nthuav txuas tag nrho cov tsim kuj kaw ntom nti ua. Qhov no saib kuas ceev ceev nyob rau hauv lub sij hawm ntev.

Lag luam thiab Tu

1. Pob valve rau welding yuav tsum tau ua nyob rau hauv ib tug kub ntawm tsis pub tsawg tshaj 30 ° ^C.

2. Siab nyob rau hauv lub raj dej tej zaum yuav 1.6 / 2.5 / 4 megapascal.

3. Cov circulating nruab nrab yuav tsum kuj yuav tsim nyog kub: lub ntau yam ntawm los ntawm -35 mus +180 ° ^C.

Tsis tu ncua txij nkawm thiab kim txij nkawm ntawm cov pab kiag li lawm yog tsis xav tau. Koj tus kheej, koj muaj peev xwm ntxiv ib tsiaj hiav txwv rau tus kav. Txoj kev loj hlob ntawm tus tsim tsis muab kho lossis hloov ntawm qhov chaw thaum lub sij hawm tag nrho lub sij hawm ntawm kev siv.

Zoo thiab tsis zoo ntawm cov pob li qub rau welding

Zoo:

• tsawg kev luj;
• uas tsis muaj nqi;
• lub valve qhib sai sai thiab yooj yim;
• siv lub crane teev aav yog tsis tsim nyob rau hauv lub cheeb tsam nyob qhov twg lub kua ntws;
• robust, txhim khu kev qha thiab yooj yim tsim;
• kua nruj shutoff;
• Qhov no valve yog ntsia tau rau hauv lub feem ntau lub luag hauj lwm thiab nyuaj mus cuag qhov chaw ntawm lub raj dej;
• tsis muaj txij nkawm yuav tsum tau.

disadvantages:

• kho tsis tau;
• teem thiab hloov tau lub valve yuav tsuas yuav nrog cov vuam ua hauj lwm;
• tau dej rauj ntawm cia li qhib ntawm lub crane;
• txaav nyob rau hauv kev siv vim hais tias ntawm qhov ntev zog kais overlap (thaum ua hauj lwm nyob rau hauv cramped tej yam kev mob).