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Brass fittings yog dav siv nyob rau hauv cov kav dej thiab cov ntawv thov kev lag luam rau lawv cov durability, corrosion kuj, thiab yooj yim ntawm installation. Cov txheej txheem kev teeb tsa kom raug yog qhov tseem ceeb los xyuas kom muaj kev sib txuas tsis muaj qhov sib txuas thiab kev ua haujlwm ntev ntawm cov fittings.
1. Kev npaj thiab tshuaj xyuas
Ua ntej kev teeb tsa, tshuaj xyuas cov khoom siv tooj dag thiab cov khoom sib txuas kom huv si. Tshawb xyuas txhua qhov tsis xws luag, khawb, lossis qhov tsis zoo uas tuaj yeem cuam tshuam kev sib khi. Xyuas kom cov threads huv si thiab tsis puas. Siv cov cuab yeej tsim nyog xws li cov yeeb nkab wrenches lossis adjustable wrenches los tuav fittings yam tsis muaj kev puas tsuaj rau saum npoo.
2. Txoj kev sib khi xov
Ib qho tseem ceeb ntawm kev txhim kho tooj dag fittings yog xyuas kom zoo sealing ntawm threaded kev twb kev txuas. Nyob ntawm daim ntawv thov thiab hom haum, ntau txoj kev sib khi tuaj yeem siv tau:
- Teflon daim kab xev: qhwv ob peb txheej ntawm high-density Teflon daim kab xev nyob ib ncig ntawm cov txiv neej threads nyob rau hauv ib tug clockwise kev taw qhia kom tsis txhob unraveling thaum zawm.
- Yeeb Nkab Xov Sealant: Siv cov xov sealant compound haum rau tooj dag fittings rau txiv neej threads. Xyuas kom lub sealant yog sib xws nrog cov kua los yog roj xa mus.
- Yeeb Nkab Dope: Siv cov yeeb nkab dope sparingly ntawm cov txiv neej threads los tsim kom nruj. Tsis txhob siv ntau dhau uas tuaj yeem ua paug rau lub cev.
Ua tib zoo kaw cov fittings siv ob lub wrenches-ib qho los tuav lub cev haum thiab lwm yam kom nruj qhov kev sib txuas-ua kom muaj kev sib haum xeeb yam tsis muaj kev sib tw dhau.
3. Flare Fittings thiab Compression Fittings
Rau cov ntawv thov uas xav tau flare fittings lossis compression fittings, ua raws li cov txheej txheem kev teeb tsa tshwj xeeb:
- Flare Fittings: Siv cov cuab yeej flaring los tsim kom meej 45-degree flare ntawm qhov kawg ntawm tubing. Ntxig qhov kawg flared rau hauv qhov haum thiab ceev cov txiv ntoo kom ruaj ntseg kev sib txuas. Xyuas kom lub flare zaum snugly tiv thaiv lub cev haum yam tsis muaj qhov khoob.
- Compression Fittings: Xaub cov txiv ntoo compression thiab ferrule hla lub raj kawg ua ntej muab tso rau hauv lub compression haum lub cev. Tighten tus txiv ntseej tusyees kom compress lub ferrule tiv thaiv lub tubing, tsim ib tug txhim khu kev qha foob. Tsis txhob nruj dhau, uas tuaj yeem ua rau lub fittings lossis tubing puas.
4. Tsis txhob Galvanic Corrosion
Cov khoom siv tooj dag tuaj yeem muaj kev xeb galvanic thaum sib cuag nrog cov hlau tsis sib xws hauv qhov muaj cov electrolyte (xws li dej los yog ya raws). Txhawm rau txo qhov kev pheej hmoo no:
- Siv cov koom haum Dielectric: Txhim kho cov koom haum dielectric lossis insulating gaskets ntawm tooj dag fittings thiab lwm yam hlau xws li hlau los yog tooj liab los tiv thaiv kev sib cuag ncaj qha thiab galvanic corrosion.
- Siv Corrosion Inhibitors: Siv cov tshuaj tiv thaiv los yog cov tshuaj tiv thaiv corrosion ntawm cov xov sib txuas los tiv thaiv corrosion thaum lub sijhawm.
- Saib xyuas Electrolysis: Lub sijhawm tshuaj xyuas cov fittings rau cov cim ntawm corrosion los yog discoloration, uas yuav qhia tau hais tias electrolytic ua. Hais txog txhua yam teeb meem tam sim ntawd los tiv thaiv kev xau los yog haum tsis ua haujlwm.
5. Kev ntsuas siab thiab tshuaj xyuas
Tom qab kev teeb tsa, ua qhov kev ntsuas siab kom ntseeg tau tias kev ncaj ncees ntawm cov tooj dag fittings thiab kev sib txuas:
- Cov Txheej Txheem Kev Ntsuas Siab: Maj mam nce qhov system siab mus rau qib uas tau teev tseg thiab saib xyuas cov dej xau ntawm fittings thiab pob qij txha.
- Soap Solution Test: Siv xab npum thiab dej tov rau fittings thiab pob qij txha thaum nyob hauv siab. Nrhiav cov npuas uas qhia txog kev xau thiab nruj kev sib txuas raws li xav tau.
- Kev Ntsuam Xyuas Kev Pom Zoo: Tshawb xyuas cov fittings rau cov cim ntawm deformation, tawg, los yog xau thaum lub sij hawm thiab tom qab kev ntsuas siab. Hloov cov fittings uas qhia txog kev puas tsuaj los tswj kev ntseeg tau.
Xaus
Hauv kev xaus, kev txhim kho tooj dag fittings yuav tsum tau saib xyuas kom meej thiab ua raws li cov txheej txheem tsim nyog kom ua tiav kev sib txuas ruaj khov thiab tsis muaj paug. Txawm hais tias rau cov kav dej, kev lag luam, lossis kev siv tsheb, ua raws li cov lus pom zoo ntawm cov chaw tsim khoom thiab cov kev coj ua zoo tshaj plaws hauv kev lag luam ua kom lub neej ntev thiab kev ua haujlwm ntawm cov khoom siv tooj dag. Los ntawm kev npaj cov chaw, siv txoj kev sib khi kom tsim nyog, tsis txhob galvanic corrosion, thiab ua cov kev soj ntsuam zoo, cov neeg tsim khoom tuaj yeem tswj xyuas qhov kev ncaj ncees ntawm cov tooj dag fittings thiab pab txhawb rau tag nrho cov kev ua tau zoo thiab kev nyab xeeb ntawm cov tshuab uas lawv tau koom ua ke.