Cov li qub siv nyob rau hauv xoom tso tawm ntawm kev siv dej khib nyiab, hluav taws xob li qub, suav nrog li qub, muaj li qub, tswj cov li qub, lub rooj vag li qub, thiab lwm yam; Kev tuav cov nyiaj li qub, li qub uas cia siab rau kev ua haujlwm zoo li qub, tuaj yeem txheeb xyuas cov khoom noj ntses, tuaj yeem yog cov khoom siv hluav taws xob, tuaj yeem yog cov li qub, muaj cov li qub, lub rooj vag li qub, thiab lwm yam.
Kev Siv Ntawm Li Qub
1. Butterfly valve: small size, small volume, light weight, generally caliber>DN80, siab
2. Pob valve: dav caliber thiab siab daim ntawv thov ntau, cov ntim me me, lub teeb hnyav, zoo sib khi; Kev xa tawm tsis-crystalline tshaj tawm, xov xwm tsis muaj cov ntsiab;
3. Kos Valve: Viav Hom, Lifting Hom, Npauj Npaim Hom, Pipeline hom; Kev xaiv, kaw cov yam ntxwv nrawm thiab kaw cov yam ntxwv thiab qhov loj me;
(1) Swing type, more commonly used, generally caliber>DN50, cov nyiaj siab qis thiab txo qis qis, dn50 ~ tso nkauj npauj npaim (ib lub ntsej muag npauj npaim) H44 hom yog ntsia hauv kab rov tav lossis cov kab nqes me me (H76 hom yuav tsis tshua muaj dua), thiab nws tsuas yog muab tso rau hauv cov kab rov tav lossis ntsug), tab sis nws txwv tsis pub ua haujlwm ntawm qhov nruab nrab hauv qab mus rau saum;
(2) Lifting hom, tsuas yog ntsia rau ntawm cov kab rov tav, tsis muaj kev txwv ntawm lub taub, siab me me-txoj kab kom kaw sai sai, ntau lub twj kom kaw sai sai; (Hauv kev xyaum, cov roj qis ua rau cov yas tau muab tso rau hauv cov kav dej ntsug nrog cov kav dej ntsug, thiab tsis tuaj yeem nruab rau hauv cov kav dej ntsug
(3) Npauj npaim hom, loj me me, lub teeb yuag, kuj tsis zoo; Ib leeg pluaj npauj npaim Kos rau hauv cov kav hlau kab rov tav lossis cov neeg cuam tshuam tsis zoo thaum muaj kev cuam tshuam rau cov yeeb nkab. Ib pluaj npuaj npauj npaim li qub yog siv rau cov kav dej yas nyob rau hauv qhov cuam tshuam; Qeeb kaw nrawm, ib zaug caij twj tso kua dej tsis tshua txaus tus nqi kev ua haujlwm;
(4) Piston hom, tej lub nqus nqus dej lossis reciprocating compressor ua haujlwm mob;
(5) cov raj xa hluav taws xob, loj me me, lub teeb yuag, yog qhov tshiab kos valve;
4. Nres valve: dav caliber
5. Rooj vag Valve: tsis txwv los ntawm ntws; loj loj thiab qhib qhov siab, loj chaw haujlwm; Kev siv tsheb thauj dej zoo rau kev ntxuav dej huv, ob chav sib khi tau yooj yim los hnav; lub sijhawm qhib ntev, qhib thiab qhib zog;
6. Diaphragm Valve: Corrosive Media xws li kua qaub thiab alkali
7. Kev tswj hwm lub valve, siab txo qhov valve: roj thiab kua, chav dej; Kev Ua Yus Tus Kheej Kev Cai Tswjhwm Siab Txo Valve thiab Flow Txo Txo Siab Txhob Txo Valve
(1) Lub siab txo lub valtucing valve ruaj khov lub siab sib txawv ua ntej thiab tom qab lub valve. Lub siab txo qhov hluav taws xob yog qhov sib txawv ntawm cov kua hluav taws xob tsis kam, ua rau lub siab poob, yog li ua tiav lub hom phiaj txo qis;
(2) Cov kev tswj hwm lub valve muaj txoj haujlwm ntawm cov stabilizing lub siab ua ntej lossis tom qab lub zog tsis tau hloov pauv thaum lub siab ua ntej lossis tom qab lub valve hloov;
(3) When the gas pressure drop is large (>6Bar) thiab yuav tsum tau txaus txaus, nws raug nquahu kom siv lub valve kev tswj hwm (xws li tus kheej powered valve;
8. Kev ruaj ntseg valve: kev tiv thaiv kev nyab xeeb
9. Plug Valve: tuaj yeem thauj Crystalline Media
Valve Tsim Thiab Xaiv
1. Pressure and diameter: Considering the diameter factor, the switch valve, diameter DN80/pressure DN80/pressure>Pn40 valve siv pob zeb valve:
2. Nruab Nrab: Hloov Valve, Huab Cua thiab Chav Hlau Hluav Taws Xob Siv Lub Tshuab Cua Nres, Qhov Tsis Txaus Ntsig Brine Media Feem ntau xaiv Npauj Npaim Li Qub Thiab Pob Muaj Li Qub:
3. Cov khoom siv: lub cev valve, rooj zaum valve \/ sealing lub rooj zaum, valve tub ntxhais, valve qia, thiab lwm yam.
(1) Lub cev valve, grey cam khwb cia hlau<16bar, clean water; ductile iron <40bar, brine, air, steam; cast steel-water, steam, liquefied gas, natural gas; stainless steel, titanium alloy-high brine, high temperature medium; cast copper alloy-oxygen, brine; plastic-<16bar, acid and alkali corrosive medium;
(2) Cov hlau valve, zas hlau, cam khwb cia steel, stainless hlau, thiab lwm yam; Hauv ob sab phlu, xws li fluoroplastics:
(3) Lub Rooj Zaum \/ Lub Rooj Zaum, roj hmab, PTFE phlu, 304\/316 thiab lwm yam hlau
(4) valve lub qia, feem ntau 17-4 pH, 1cr13, 2CR13
4. Txhim kho thiab siv: xav txog kev teeb tsa thiab kev ntseeg tau, thiab lwm yam kev sib txuas yog feem ntau flang hom lossis lub log-hom yuav tsum tau zam ntau li ntau tau;
5. For the selection of gas pressure reducing valves, self-operated regulating valves should be selected when the pressure drop is large (>6bar) thiab txaus ntws txaus.