IValve Gasket Function & Application Guide

I-valve gaskets yenzelwe ukuthintela ukuvuza okubangelwa luxinzelelo, ukubola, kunye nokwandiswa kwe-thermal / ukufinyela phakathi kwamacandelo. Ngelixa phantse zonke flangeduqhagamshelwano's iivalvu zifuna i-gaskets, ukusetyenziswa kwazo kunye nokubaluleka kwazo kuyahluka ngohlobo lwevalve kunye noyilo. Kweli candelo,TWSiyakuchaza izithuba zofakelo lwevalvu kunye nokukhetha imathiriyeli ye-gasket.

I. Olona setyenziso luphambili lweegaskiti lukwindawo edityanisiweyo yoqhagamshelo lwevalvu.

Ivalve yosetyenziso oluxhaphakileyo

1. Ivalve yeSango
2. Ivalve yeglowubhu
3. Ivalve yebhabhathane(ingakumbi ivalufa yebhabhathane enecala eliphakathi kunye ne-double eccentric)
4. Khangela ivalve

Kulezi zivalo, i-gasket ayisetyenziselwa ukulawulwa kokuhamba okanye ukutywinwa ngaphakathi kwevalve ngokwayo, kodwa ifakwe phakathi kwee-flanges ezimbini (phakathi kwe-flange ye-valve ngokwayo kunye ne-pipe flange). Ngokuqiniswa kweebholithi, amandla aneleyo okubamba ayenziwa ukuze enze isitywina esimileyo, ukuthintela ukuvuza kwendawo ekudibaneni. Umsebenzi wayo kukugcwalisa izithuba ezincinci ezingalinganiyo phakathi kweendawo ezimbini zentsimbi yeflange, ukuqinisekisa ukutywinwa kwe-100% kumdibaniso.

II.Ukusetyenziswa kweGasket kwiValve "Isigubungelo seValve"

Iivalvu ezininzi ziyilwe zinemizimba yevalvu eyahlukileyo kunye nezigqubuthelo zokugcinwa lula kwangaphakathi (umz., ukutshintsha izihlalo zevalvu, iivalvu zedisk, okanye inkunkuma yokucoca), ezithi zibotshwe kunye. I-gasket nayo iyafuneka kolu qhagamshelwano ukuze kuqinisekiswe isitywina esiqinileyo.

1. Ukudibanisa phakathi kwesivalo sevalve kunye nomzimba wevalve yevalve yesango kunye nevalve yeglowubhu ngokuqhelekileyo ifuna ukusetyenziswa kwe-gasket okanye i-O-ring.
2. Igasket kule ndawo ikwasebenza njengesitywina esimileyo ukuthintela okuphakathi ekuvuzeni ukusuka kumzimba wevalvu ukuya emoyeni.

III. Igasket ekhethekileyo kwiintlobo ezithile zevalve

Ezinye iivalvu zibandakanya i-gasket njengenxalenye yendibano yazo yokutywina engundoqo, eyilelwe ukuba idityaniswe ngaphakathi kwesakhiwo sevalve.

1. Ivalve yebhabhathane-isihlalo se-valve gasket

• Isihlalo sevalve yebhabhathane eneneni yi-gasket yeringi, ecinezelwe kudonga lwangaphakathi lomzimba wevalvu okanye efakwe kwidiski yebhabhathane.
• Xa ibhabhathaneidiskiivala, icinezela isihlalo sevalve gasket ukwenza itywina eliguqukayo (njengebhabhathaneidiskiiyajikeleza).
• Izinto eziphathekayo ziyirabha (umzekelo, i-EPDM, i-NBR, i-Viton) okanye i-PTFE, eyenzelwe ukuhlalisa imidiya eyahlukeneyo kunye neemeko zobushushu.

2. Ivalve yeBhola-Valve Seat Gasket

• Isihlalo sevalve yevalve yebhola ikwaluhlobo lwegasket, elenziwe ngokuqhelekileyo kwizinto ezifana ne-PTFE (polytetrafluoroethylene), PEEK (polyetheretherketone), okanye iiplastiki ezomeleziweyo.
• Inika itywina phakathi kwebhola kunye nomzimba wevalve, isebenza zombini njengetywina engatshintshiyo (ngokunxulumene nomzimba wevalvu) kunye netywina eliguqukayo (ngokunxulumene nebhola ejikelezayo).

IV. Zeziphi iivalvu ezingasetyenziswanga ngegaskets?

1. Iivalve ezidityanisiweyo: Umzimba wevalve udityaniswe ngokuthe ngqo kumbhobho, ususa imfuno yeeflange kunye neegaskets.
2. Iivalvu ezinoqhagamshelo oluphothiweyo: Ngokuqhelekileyo zisebenzisa ukutywinwa okufakwe umsonto (okufana neteyiphu yemathiriyeli ekrwada okanye i-sealant), ngokubanzi kususa imfuno yeegaskithi.
3. Iivalve ze-Monolithic: Ezinye iivalvu zebhola ezixabisa imali ephantsi okanye iivalvu ezikhethekileyo zibonakalisa umzimba wevalvu odibeneyo ongenako ukuqhawuka, ngaloo ndlela uswele isivalo sevalvu.
4. Iivalvu ezine-O-rings okanye i-gaskets ehlanganiswe ngesinyithi: Kwi-high-pressure, high-temperature, okanye i-special-medium applications, izisombululo zokutywinwa eziphambili zinokuthi zithathe indawo ye-gaskets ye-non-metallic.

V. Isishwankathelo:

I-valve gasket luhlobo lwesitshixo sokutywina esisitshixo ngokubanzi, sisetyenziswa ngokubanzi kuqhagamshelo lwemibhobho yeevalvu ezahlukeneyo zeflange, kwaye ikwasetyenziswa kutywino lwesivalo sevalve yeevalvu ezininzi. Ekukhetheni, kuyimfuneko ukukhetha izinto ezifanelekileyo ze-gasket kunye nefom ngokohlobo lwe-valve, imodi yokudibanisa, i-medium, iqondo lokushisa kunye noxinzelelo.