Kev ua haujlwm ntawm lub rooj zaum valve: siv los txhawb txoj haujlwm kaw tag nrho ntawm lub valve core thiab tsim ib khub sealing.

Kev ua haujlwm ntawm Disc: Disc - ib lub voj voos kheej kheej uas txhawb nqa nqa thiab txo qis qis. Hardened kom ua tiav kev pab cuam lub neej.

Lub luag hauj lwm ntawm lub valve core: lub valve core nyob rau hauv lub siabtxo valveyog ib qho ntawm cov khoom tseem ceeb rau kev tswj lub siab.

Cov yam ntxwv ntawm lub rooj zaum valve: Corrosion thiab hnav tsis kam; Lub sijhawm ua haujlwm ntev; Kev kub siab tsis kam; Siab qhov tseeb; Kev tiv thaiv zoo heev rau thrust loads thiab kub kub; Haum rau feem ntau cov neeg nrog caij tsheb, lub teeb thiab hnyav tsheb thauj khoom, diesel xyaw thiab chaw nres tsheb Industrial engines.

Valve disc nta: Nws muaj qhov hloov kho qhov chaw ua haujlwm los tiv thaiv lub valve lub cev plhaub phab ntsa los ntawm kev nkag mus. Qhov tshwj xeeb clamshell npauj npaim phaj kos valve muaj ib lub phaj npauj npaim pob khawm, uas tsis tsuas yog tshem tawm qhov muaj peev xwm ntawm lub pob khawm tus pin punncturing lub valve vaj tsev rau cov dej, tab sis kuj ua rau lub rooj zaum valve yooj yim kho vim tias lub tshuab bracket yog sib npaug rau. lub rooj zaum valve. Kho disc/seat.

Cov yam ntxwv ntawm lub valve core: Thaum lub rotating core rotates, lub diav rawg nyob rau hauv qis kawg ntawm lub rotating core tsav lub txav valve phaj tig, kom lub qhov dej qhov hluav taws xob ntawm lub txav valve phaj sib raug rau cov dej inlet qhov ntawm qhov txav. valve phaj. static valve phaj, thiab thaum kawg dej ntws tawm ntawm lub rotating core. Los ntawm lub qhov dej tawm, qhov kev tsim no yog siv dav hauv faucet outlets.

Lub rooj zaum ntawm lub rooj zaum: Siv cov khoom siv elastic sealing thiab me me actuator thrust kom tau txais lub foob airtight. Lub sealing kev nyuaj siab ntawm compressing lub rooj zaum valve ua rau cov khoom rau elastically deform thiab nyem rau hauv qhov ntxhib saum npoo ntawm mating hlau tivthaiv kom ntsaws ib qho xau. txoj kev. Lub permeability ntawm cov ntaub ntawv rau cov kua yog lub hauv paus rau me me leaks.

Valve disc txheej txheem cej luam: tiab hom disc sealing nplhaib. Cov qauv siv hluav taws xob nthuav tawm ib daim tiab-hom valve disc sealing nplhaib. Nws cov yam ntxwv feature yog tias lub foob ntawm lub nplhaib sealing thiab lub valve disc lub cev yog ob-edged kab foob. Lub longitudinal seem ntawm lub sealing point ntawm lub nplhaib sealing thiab lub valve disc lub cev yog lub dav hlau trapezoidal.

Lub ntsiab lus tseem ceeb ntawm lub valve: Lub valve tseem ceeb yog ib feem ntawm lub valve uas siv lub zog ntawm lub valve lub cev kom ua tiav cov haujlwm tseem ceeb ntawm kev tswj kev tswj, kev tswj siab lossis kev tswj dej ntws.

Lub ntsej muag kawg ntawm lub ntsej muag nyob rau hauv lub valve yog siv los txhawb lub siab kaw txoj hauj lwm ntawm lub valve core thiab tsim ib khub sealing. Feem ntau, lub rooj zaum ntawm lub valve yog qhov siab tshaj plaws khiav txoj kab uas hla ntawm lub valve. Piv txwv li, npauj npaim li qub tuaj nyob rau hauv ntau yam khoom siv zaum. Lub rooj zaum valve tuaj yeem ua los ntawm ntau yam roj hmab, yas, thiab cov ntaub ntawv hlau, xws li: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE, thiab lwm yam.

Cov khoom siv uas yuav tsum tau xav txog thaum xaiv lub rooj zaum muag muag yog:
1) Cov kua dej sib xws, suav nrog o, hardness poob, permeability thiab degradation;
2) Hardness;
3) Permanent deformation;
4) Lub degree ntawm kev rov qab los tom qab tshem tawm cov load;
5) Tensile thiab compressive zog;
6) Deformation ua ntej rupture;
7) Elastic modulus.

Disc

Lub valve disc yog lub valve core, uas yog ib qho tseem ceeb ntawm lub valve. Nws ncaj qha bears lub siab nruab nrab hauv lub valve. Cov ntaub ntawv siv yuav tsum ua raws li "Valve Pressure and Temperature Class" cov cai.

Cov khoom siv feem ntau muaj xws li cov hauv qab no:
1. Grey cam khwb cia hlau: Grey cam khwb cia hlau yog haum rau dej, chav, cua, roj, roj thiab lwm yam xov xwm nrog ib tug nominal siab PN ≤ 1.0MPa thiab ib tug kub ntawm -10 ° C mus rau 200 ° C. Feem ntau siv qib grey cam khwb cia hlau yog: HT200, HT250, HT300, thiab HT350.
2. Malleable cam khwb cia hlau: haum rau dej, chav, huab cua thiab roj xov xwm nrog nominal siab PN≤2.5MPa thiab kub ntawm -30 ~ 300 ℃. Cov qib siv feem ntau suav nrog: KTH300-06, KTH330-08, KTH350-10.
3. Ductile hlau: haum rau dej, chav, cua, roj thiab lwm yam xov xwm nrog PN≤4.0MPa thiab kub -30 ~ 350 ℃. Cov qib siv feem ntau suav nrog: QT400-15, QT450-10, QT500-7.
Nyob rau hauv qhov kev pom ntawm theem kev txawj ntse hauv tsev tam sim no, ntau lub tsev tsim khoom tsis sib xws, thiab cov neeg siv tshuaj xyuas feem ntau muaj teeb meem. Raws li kev paub dhau los, nws raug pom zoo tias PN≤2.5MPa thiab cov khoom siv valve yuav tsum yog hlau kom muaj kev nyab xeeb.
4. Acid-resistant high-silicon ductile hlau: haum rau corrosive media nrog nominal siab PN ≤ 0.25MPa thiab kub hauv qab 120 ° C.
5. Cov pa roj carbon steel: haum rau kev tshaj tawm xws li dej, chav, cua, hydrogen, ammonia, nitrogen thiab roj av cov khoom uas muaj lub siab nominal PN ≤ 32.0MPa thiab qhov kub ntawm -30 ~ 425 ° C. Cov qib siv feem ntau suav nrog WC1, WCB, ZG25, cov hlau zoo 20, 25, 30 thiab cov hlau tsis tshua muaj hlau 16Mn.
6. Copper alloy: haum rau dej, dej hiav txwv, oxygen, huab cua, roj thiab lwm yam xov xwm nrog PN≤2.5MPa, nrog rau cov pa tawm nrog qhov kub ntawm -40 ~ 250 ℃. Cov qib siv feem ntau suav nrog ZGnSn10Zn2 (tin bronze), H62, Hpb59-1 ( tooj dag), QAZ19-2, QA19-4 (aluminium bronze).
7. Kub kub tooj liab: haum rau chav thiab roj av khoom nrog nominal siab PN≤17.0MPA thiab kub ≤570 ℃. Cov qib siv feem ntau suav nrog ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 thiab lwm qib. Kev xaiv tshwj xeeb yuav tsum ua raws li lub valve siab thiab kub specifications.
8. Tsawg-kub steel, haum rau nominal siab PN≤6.4Mpa, kub ≥-196 ℃ ethylene, propylene, liquefied natural gas, kua nitrogen thiab lwm yam xov xwm, feem ntau siv hom) muaj xws li ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZN9 . steel acid-resistant steel, haum rau nominal siab PN≤6.4Mpa, kub ≤200 ℃ nitric acid, acetic acid thiab lwm yam xov xwm, feem ntau siv hom yog ZG0Cr18Ni9Ti, ZG0Cr18Ni10 , ZG0Cr18Ni12Mo2Ti, ZG1Cr18Ni12Mo2Ti

valve tub ntxhais
Lub valve tseem ceeb yog ib feem ntawm lub valve uas siv nws txoj kev txav mus los kom ua tiav cov haujlwm tseem ceeb ntawm kev tswj kev tswj, kev tswj siab lossis kev tswj xyuas ntws.

Kev faib tawm
Raws li hom kev txav, nws muab faib ua hom kev sib hloov (45 °, 90 °, 180 °, 360 °) thiab hom txhais lus (radial, directional).
Raws li cov duab, feem ntau nws tuaj yeem muab faib ua kheej kheej (pob valve), conical (plug valve), disc (npauj npaim valve, rooj vag valve), dome-shaped (nres valve, kos valve) thiab cylindrical (reversing valve).
Feem ntau ua los ntawm tooj liab lossis stainless hlau, kuj tseem muaj cov yas, nylon, ceramics, iav, thiab lwm yam.
Lub valve tseem ceeb hauv lub siab txo valve yog ib qho ntawm cov khoom tseem ceeb rau kev tswj lub siab.