Common Piping thiab Plumbing Fittings - Luj tshib

An luj tshibyog ntsia nruab nrab ntawm ob qhov ntev ntawm cov yeeb nkab (los yog tubing) kom tso cai rau kev hloov pauv, feem ntau yog 90° lub 45° kaum sab xis;22.5 ib° luj tshib kuj muaj.Qhov kawg yuav yog machined rau pob tw vuam, threaded (feem ntau yog poj niam) los yog socketed.Thaum xaus qhov sib txawv ntawm qhov loj me, nws yog lub npe hu ua kev txo qis (lossis reducer) lub luj tshib.

Lub luj tshib yog categorized los ntawm kev tsim.Lub vojvoog ntawm lub vojvoog ntev (LR) lub luj tshib yog 1.5 npaug ntawm txoj kab uas hla.Nyob rau hauv luv luv-radius (SR) luj tshib, lub vojvoog sib npaug ntawm cov yeeb nkab txoj kab uas hla.Ninety-, 60- thiab 45-degree luj tshib kuj muaj.

Lub luj tshib 90-degree, tseem hu ua "90 khoov", "90 ell" lossis "lub quarter khoov", txuas tau yooj yim rau cov yas, tooj liab, cam khwb cia hlau, hlau thiab txhuas thiab txuas rau roj hmab nrog stainless-steel clamps.Cov khoom muaj xws li silicone, roj hmab tebchaw, galvanized steel thiab nylon.Nws feem ntau yog siv los txuas cov hoses rau li qub, cov twj tso dej thiab cov kav dej.Lub luj tshib 45-degree, tseem hu ua "45 khoov" lossis "45 ell", feem ntau yog siv rau hauv cov chaw siv dej, khoom noj khoom haus, tshuaj lom neeg thiab hluav taws xob cov kav dej sib txuas, cov kav dej cua txias, kev ua liaj ua teb thiab kev tsim vaj tsev thiab hnub ci. lub cev muaj zog piping.

Feem ntau lub luj tshib muaj nyob rau hauv luv luv-lossis ntev-radius versions.Lub luj tshib luv luv muaj qhov nruab nrab mus rau qhov kawg sib npaug ntawm Nominal Pipe Size (NPS) hauv ntiv tes, thiab lub luj tshib ntev yog 1.5 npaug ntawm NPS hauv ntiv tes.Lub luj tshib luv, dav dav, feem ntau yog siv nyob rau hauv lub tshuab pressurized.

Lub luj tshib ntev yog siv nyob rau hauv lub tshuab nqus tsev tsis muaj zog thiab lwm yam kev siv uas tsis muaj turbulence thiab qhov tsawg kawg nkaus deposition ntawm entrained solids muaj kev txhawj xeeb.Lawv muaj nyob rau hauv acrylonitrile butadiene styrene (ABS yas), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) thiab tooj liab rau DWV systems, dej phwj tuaj thiab lub hauv paus nqus tsev vacuum.

Common Piping thiab Plumbing Fittings-Tee

Ib lub tee, feem ntau cov yeeb nkab haum, yog siv los ua ke (lossis faib) cov kua dej ntws.Nws yog muaj nyob rau hauv cov poj niam xov sockets, hnyav-weld sockets los yog opposed hnyav-weld sockets thiab ib tug poj niam-threaded sab qhov hluav taws xob.Tees tuaj yeem txuas cov kav dej sib txawv los yog hloov cov kev taw qhia ntawm cov yeeb nkab khiav.Muaj nyob rau hauv ntau yam ntaub ntawv, qhov ntau thiab tsawg thiab tiav, lawv yog siv los thauj ob-kua sib tov.Tees tej zaum yuav sib npaug los yog tsis sib npaug ntawm qhov loj, nrog sib npaug tees feem ntau.

Common Piping thiab Plumbing Fittings-Union

Ib lub koom haum, zoo ib yam li kev sib txuas, tso cai rau kev sib txuas yooj yim ntawm cov kav dej rau kev kho lossis hloov kho.Txawm hais tias ib qho kev sib txuas yuav tsum tau ua kom hnyav vuam, soldering los yog kev sib hloov (threaded couplings), ib lub koom haum tso cai rau kev sib txuas yooj yim thiab kev sib txuas.Nws muaj peb ntu: txiv ntseej, poj niam kawg thiab txiv neej kawg.Thaum tus poj niam thiab txiv neej xaus sib koom, cov txiv ntoo kaw qhov sib koom ua ke.Cov koom haum yog ib hom flange connector.

Dielectric unions, nrog dielectric rwb thaiv tsev, cais cov hlau tsis sib xws (xws li tooj liab thiab galvanized steel) los tiv thaiv galvanic corrosion.Thaum ob cov hlau tsis sib xws nyob rau hauv kev sib cuag nrog cov khoom siv hluav taws xob (cov dej kais dej yog cov khoom siv hluav taws xob), lawv tsim lub roj teeb tsim hluav taws xob los ntawm electrolysis.Thaum cov hlau nyob rau hauv kev sib cuag ncaj qha rau ib leeg, cov hluav taws xob tam sim no ntawm ib mus rau lwm qhov txav ions ntawm ib qho mus rau lwm qhov;qhov no dissolves ib tug hlau, depositing rau lwm yam.Ib lub koom haum dielectric rhuav tshem txoj kev hluav taws xob nrog cov yas liner ntawm nws cov halves, txwv tsis pub galvanic corrosion.Rotary unions tso cai rau kev sib hloov ntawm ib qho ntawm cov khoom sib koom.