Hluav Taws rooj vag: tus yam ntxwv hom thiab cov yam ntxwv ntawm tus ntaus ntawv

Hluav taws kub hluav yuav tsum tau tag nrho cov system uas muaj lub hydrant, hoses, li qub thiab lwm yam kev hais. Cov pab kiag li lawm cia muab dej ncaj qha mus rau lub point ntawm tiv cav tseb. Tsis yog tus twg tua hluav taws extinguishing system yog tsis tiav yam tsis muaj ib tug high-zoo li qub uas tus valve yog hluav taws kub. Xav txog dab tsi hom muaj, lawv sib txawv thiab qhov zoo ntawm kev siv.

normative ua

Nyob rau hauv tag nrho cov teeb meem hais txog cov hluav taws kev tiv thaiv systems, kev cai yuav siv sij hawm qhov chaw nrog reference rau cov nram no cov ntaub ntawv:

• NPB 154-2000. Qhov no kev cai qhia tag nrho cov lus hais txog cov txheej txheem ntawm qhov hluav taws kub, li qub, hluav taws kub hydrants. Nws kuj regulates kev ib feem: kev nyab xeeb uas yuav tsum tau thiab txoj kev xeem cov khoom siv.
• GOST P 53278-2009. Previous daim ntawv ua siv tau lub Standard raws li ib tug yooj yim daim ntawv, uas yuav muab ib tug ntau tseeb kev piav qhia ntawm tej yam ntxawg qhov tseem ceeb.
• Tsoom fwv teb chaws txoj cai lij choj №123. Qhov no txoj cai regulates kev cai lij choj qhov teeb meem nyob rau hauv cov ntaub ntawv ntawm qhov hluav taws kub, raws li tau zoo raws li kev ntsuas kom tiv thaiv kom txhob nws.

Cov cai kav txhua yam, los ntawm zus tau tej cov li qub ua ntej yuav siv thiab kuaj.

Yuav ua li cas yog nws?

Hluav Taws rooj vag (aka valve) yog ib feem ntawm lub crane. Mounted rau hauv cov dej tsis zoo system rau qhov hluav taws kub extinguishing kua los yog roj kub mus rau 50 ° C. Ib kawg ntawm cov khoom no yuav tsum nyob rau hauv daim ntawv ntawm ib tug lub tes tsho, thiab lub thib ob - tsapkovy (txiv neej) rau screwing hauv lub txuas coupling taub hau. By tsim, hluav taws kub li qub yeej tsis txawv ntawm cov pa counterparts. Qhov txawv - tsuas yog nyob rau hauv lub cheeb thiab cov khoom siv. Nyob rau hauv lawv cov qauv, lawv muaj ib tug handwheel bushing packing caj pas taub hau lub cev, threaded pas nrig, kev rho tawm valve nrog lub gasket.

hom

ob peb hom peev xwm yuav txawv raws li ntau yam qauv:

• Raws li lub hom installation - channel, cov phab ntsa.
• By xa mus rau lub txheej hull qauv - lub kaum sab xis (90 ° los yog 125 °), thiab sib txuas lus, los ntawm-txaus.
• By nuj nqi - kaw, kaw-off thiab regulating tshwj xeeb.
• Cov khoom - hlau, tooj dag.
• Raws li cov internal txoj kab uas hla - 50 hli los yog 65 hli.
• Raws li lub hom kev twb kev txuas - coupling / clutch, clutch / hlau. Rab hlau hluav taws kub hose valve tso cai kev twb kev txuas mus rau ib tug hose (hluav taws hose ferrule).

Ib tug ntau yam ntawm classifications tsis cuam tshuam rau yooj yim zoo ntawm ib tug haum - ntseeg.

Yuav tsum mus rau lub valve

Muaj ib tug xov tooj uas yuav tsum tau mus rau lub qhov hluav taws kub li qub:

• sealing khoom thiab cov tebchaw;
• NW - los ntawm 40 mus 65 hli;
• ua hauj lwm siab thaum cov dej tsis zoo - tsis tsawg tshaj li 1 MPa;
• lub kev khiav hauj lwm siab yog nyob rau hauv lub valve;
• kev khiav hauj lwm kub yuav tsum tsis pub tshaj 50 ° C;
• tus naj npawb ntawm revolutions ua ntej qhib - los ntawm 4 mus rau 6, nyob ntawm seb lub nominal zaj;
• Flywheel kev sib hloov - txoj cai;
• crimping yuav tsum tau rau 12 xuab moos ua ntej muag.

Tag nrho cov ntawm cov uas yuav tsum tau ua rau nws tau sai sai rau hluav taws tej yam kev mob mus pib lub system nyob rau hauv qhov kev txiav txim nyob rau hauv huab mob.

cov ntaub ntawv uas tiav

Hluav Taws valve yog tsim los ntawm cam khwb cia hlau thiab tooj dag. Qhov no yog vim lub fact tias xws li cov khoom yuav tsum muaj ib lub zog thiab kev cia siab. Hlau, tooj dag, thiab xws li cov yam ntxwv sib txawv, namely anticorrosive, durability thiab muaj peev xwm withstand kub siab ntawm lub system. Cov zog tso cai rau cov kev siv ntawm tej khoom rau ib ntev lub sij hawm.

npav

Crane khoom no tso tawm tsis tau tsuas yog nyob rau hauv tsab ntawv, cov signage, tab sis kuj nyob rau hauv tus cwj pwm thiab lub cev nqaij daim tawv painting. Cov npav thov los ntawm ib tug casting thiab yuav tsum muaj cov nram qab no ntaub ntawv:

• nominal txoj kab uas hla;
• nominal siab;
• casing cov khoom;
• trademark thiab / los yog lub npe ntawm lub chaw tsim tshuaj paus;
• kev taw qhia ntawm cov kev khiav hauj lwm nruab nrab;
• xyoo;
• xub-pointer rau cov kev taw qhia ntawm cov chaw ua hauj lwm;
• los gaskets rau flange sealing thiab thiaj li nyob. d.

Qhov seem hom npav thov nyob rau hauv raws li ntxawg uas yuav tsum tau thiab cov kev tswj.

Xim coding qhia cov ntaub ntawv los ntawm uas ua rau cov vaj tse nyob:

• Dub - Grey, malleable, zas hlau castings;
• gray - carbon steel;
• xiav - alloy steel;
• xiav - siab alloy steel, corrosion-resistant thiab thaum tshav kub kub-resistant alloys.

Raws li yuav pom, cov valve hluav taws lawv cov yam ntxwv siab qhia lub labeling.

installation thiab cov txij nkawm nta

Ntau hom kev tsim tso cai rau lub valve ntawm ib tug tua hluav taws hydrant nyob rau hauv txhua txoj hauj lwm. Txwv tsis pub cov installation ntawm flywheel down. Nyob rau hauv hluav taws kub tej yam kev mob, ua hauj lwm nrog cov dej tsis zoo system yuav tsum pheej yig thiab yooj yim. Nyob rau hauv ib qho xwm ceev, txhua txhua ob suav, li ntawd, lub valve yuav tsum tsuas yog qhib los ntawm 4-6 puv. Niaj hnub nimno designs tso cai rau koj mus ua tej yam ua tsis muaj ntxiv levers. Thaum mounting system yuav tsum tau cai rau txia. Thaum txhim kho lub valve rau lub conduit sib txuas yog nruj thiab lub caj pas gasket foob. Ua ntej installation, cov yeeb nkab yuav tsum tau ua tib zoo ntxuav tawm cov av thiab xuab zeb.

Kho vajtse yuav tsum muaj:

• Koj yuav nruab ib lub valve siv ib tug coupling taub hau.
• Thaum tsis ua hauj lwm (deterioration) ntawm lub tsiaj hiav txwv caj pas nws yog hloov.
• Lub Tshuag yog kev kawm mus rau periodic lubrication.
• Tsis tu ncua cov khoom Test.
• Thaum kawg ntawm lub txee lub neej ntawm cov khoom nws dismantled thiab xa mus rau ub.
• Cov kev pab cuam lub neej ntawm lub qub nyob rau zoo tua installation thiab cov txij nkawm.

Kaw-off valve hluav taws - ib qho ntawm feem tseem ceeb hluav taws-sib ntaus sib tua system pab kiag li lawm. Nyob rau nws zoo thiab kom zoo installation nyob rau hauv lub ceev thiab tau nws siv nyob rau hauv muaj xwm ceev. Thiab qhov no yog nyob ntawm ib tug neeg lub neej. Yog li ntawd, qhauj yog txwv tsis pub siv ntawm hluav taws-sib ntaus sib tua cov cuab yeej, tsis yog tus coj normative cov ntaub ntawv.

Thaum yuav ib tug ntaus ntawv xws li ib tug valve, koj yuav tsum tau thov cov ntaub ntawv pov thawj ntawm conformity. Them mloog mus rau cov cim nyob rau hauv raws li qhov uas nws yog thov kom thiab seb cov kev specifications yuav tsum tau. Nyob rau hauv tsis muaj kev tshwm sim yuav tsum tsis txhob coj cov khoom ntawm dubious keeb kwm. Lawv tsis txawv nyob rau hauv tsim nyog zoo thiab kev cia siab. Txuag rau cov khoom yog tsis tsim nyog, lawv yog ncaj qha nyob rau tib neeg lub neej thiab noj qab haus huv.