Tshwj xeeb Gaskets: Lawv yog dab tsi thiab thaum twg peb siv lawv?

Tshwj xeeb Gaskets: Lawv yog dab tsi thiab thaum twg peb siv lawv?

Rau ntau tshaj 500 xyoo, cov yeeb nkab hlau txuas tau txuas nrog ntau txoj hauv kev.Los ntawm thawj flanged pob qij txha tsim nyob rau hauv 1785 uas siv gaskets ua nrog ntau yam ntaub ntawv mus rau lub evolution ntawm lub tswb thiab spigot sib koom nyob rau hauv 1950 uas siv caulking yarn los yog braided hemp.

Niaj hnub no niaj hnub thawb-on gaskets muaj ntau hom roj hmab sib txuas, thiab kev txhim kho ntawm lub laub-on gasket tau ua pov thawj tias yog qhov tseem ceeb rau kev ua tiav ntawm cov dej tsis muaj dej thiab cov kav dej sib txuas.Cia peb saib ze dua ntawm txhua qhov tshwj xeeb gasket muaj nyob rau hauv kev ua lag luam hnub no.

Cov hauj lwm tshwj xeeb hu rau cov Gaskets tshwj xeeb

Koj puas paub tias tsis yog txhua lub laub-on gaskets yog npaj rau txhua daim ntawv thov?Txhawm rau kom ua tau zoo tshaj plaws hauv txhua daim ntawv thov, nws yog qhov tseem ceeb uas yuav tsum siv cov khoom siv gasket kom zoo rau koj daim ntawv thov tshwj xeeb.

Av tej yam kev mob, lwm yam pipelines nyob ze koj qhov chaw installation, thiab cov kua dej kub yog lub ntsiab yam tseem ceeb thaum txiav txim seb lub gasket tshwj xeeb yog tsim nyog rau txoj hauj lwm.Tshwj xeeb gaskets yog ua los ntawm ntau hom elastomers los tiv thaiv txhua txoj haujlwm yuav xav tau.

Yuav Ua Li Cas Koj Xaiv Txoj Cai Tshwj Xeeb Gasket rau Txoj Haujlwm?

Ua ntej, nco ntsoov siv tshwj xeeb gaskets muab los ntawm cov yeeb nkab chaw tsim khoom.Tsis tas li ntawd, nco ntsoov tias gaskets yog NSF61 thiab NSF372 pom zoo.Tam sim no, cia peb saib ze dua ntawm ntau yam tshwj xeeb gaskets muaj, lawv qhov sib txawv, thiab lawv siv.

SBR (Styrene Butadiene)

Styrene Butadiene (SBR) gaskets yog cov feem ntau siv thawb-ntawm kev sib koom ua ke gasket hauv cov yeeb nkab hlau (DI yeeb nkab) kev lag luam.Txhua daim ntawm DI yeeb nkab yog xa tawm tus qauv nrog SBR gasket.SBR yog qhov ze tshaj plaws rau cov roj hmab ntuj ntawm txhua qhov tshwj xeeb gaskets.

Feem ntau siv rau SBR gasket yog:

Haus- Dej;Dej hiav txwv;Cov kav dej huv huv;Cov dej rov qab;Cov dej nyoos;Cua daj cua dub

Qhov siab tshaj plaws kev pab cuam kub rau SBR thawb sib koom gaskets yog 150 degrees Fahrenheit rau dej thiab dej phwj siv.

EPDM (Ethylene Propylene Diene Monomer)

EPDM gaskets feem ntau yog siv nrog Ductile Iron yeeb nkab thaum muaj qhov tshwm sim ntawm:

Cawv;Dilute acids;Dilute Alkalis;Ketones (MEK, Acetone);Cov roj zaub

Lwm cov kev pabcuam uas tau txais suav nrog yog:

Haus- Dej;Dej hiav txwv;Cov kav dej huv huv;Cov dej rov qab;Cov dej nyoos;Cua daj cua dub

EPDM laub sib koom ua ke gaskets muaj ib qho kev pabcuam siab tshaj plaws ntawm tsib qhov tshwj xeeb loj gaskets ntawm 212 degrees Fahrenheit rau dej thiab dej phwj siv.

Nitrile (NBR) (Acrylonitrile Butadiene)

Nitrile gaskets feem ntau siv nrog cov yeeb nkab hlau thaum muaj cov khoom siv:

Hydrocarbons;Cov rog;Cov roj;Cov kua dej;Refined Petroleum

Lwm cov kev pabcuam uas tau txais suav nrog:

Haus dej;Dej hiav txwv;Cov kav dej huv huv;Cov dej rov qab;Cov dej nyoos;Cua daj cua dub

Nitrile thawb sib koom ua ke gaskets rau qhov siab tshaj plaws kev pabcuam kub ntawm 150 degrees Fahrenheit rau dej thiab dej phwj siv.

Neoprene (CR) (Polychloroprene)

Neoprene gaskets feem ntau yog siv nrog Ductile hlau yeeb nkab thaum cuam tshuam nrog greasy pov tseg.Lawv siv muaj xws li:

Haus dej;Dej hiav txwv;Cov kav dej huv huv;Cov dej rov qab;Cov dej nyoos;Cua daj cua dub;Viton, Fluorel (FKM) (Fluorocarbon)

Cov no suav hais tias yog "Mack Daddy" ntawm cov khoom siv tshwj xeeb - Viton gaskets tuaj yeem siv rau:

Aromatic Hydrocarbons;Roj Acids;Cov roj zaub;Cov khoom siv roj av;Chlorinated Hydrocarbons;Feem ntau cov tshuaj thiab cov kuab tshuaj

Lwm cov kev pabcuam uas tau txais suav nrog:

Haus dej;Dej hiav txwv;Cov kav dej huv huv;Cov dej rov qab;Cov dej nyoos;Cua daj cua dub

Tsis tas li ntawd, Viton push-on joint gaskets muaj qhov siab tshaj plaws kev pabcuam kub ntawm 212 degrees Fahrenheit, ua rau Viton gasket qhov zoo tshaj plaws tag nrho thiab txhua qhov tshwj xeeb gasket rau cov kav dej hlau.Tab sis ua qhov zoo tshaj plaws los nrog tus nqi;qhov no yog qhov kim tshaj plaws tshwj xeeb gasket ntawm lub khw.

Saib Xyuas Koj Cov Gasket Tshwj Xeeb

Tam sim no, thaum koj cov gaskets tau xa mus rau qhov chaw ua haujlwm, nco ntsoov saib xyuas koj cov peev txheej kom zoo.Ntau yam tuaj yeem ua mob rau tag nrho koj cov gaskets.

Cov yam tsis zoo no suav nrog, tab sis tsis txwv rau:

Hnub ci ncaj qha;Kub;Huab cua;av;Cov khib nyiab

Qhov kev cia siab ntawm lub neej ntawm DI yeeb nkab yog ntau tshaj 100 xyoo, thiab tam sim no koj tuaj yeem txheeb xyuas qhov tseeb tshwj xeeb gasket rau txhua qhov chaw ua haujlwm, koj tuaj yeem ntseeg tau tias koj qhov project yog Iron Strong nyob rau lub sijhawm ntev.