Chidule

• Chisindikizo cha Rabala

• Mpando Woyandama

• Kudzikundikira kwa Madzi a M'nyanja

Zinthu Zofunika

Thupi la valavu, diski ndi mphete yolumikizira zimapangidwa ndi chitsulo cha kaboni kapena chitsulo chopangidwa ndi chitsulo, kuti muchepetse mtengo ndikupangitsa kuti valavuyo ikhale ndi chiŵerengero chapamwamba cha magwiridwe antchito ndi mtengo. Zigawo zonse zomwe zimalumikizana ndi sing'anga zimakutidwa ndi ceramic ndi zina zotero, zokutira zoteteza dzimbiri kuti ziwonjezere mphamvu ya valavu kuti isawonongeke ndi dzimbiri m'madzi a m'nyanja. Zinthu zomwe zili mu CF8M, C95800, C92200, C276, 316Ti ndi zina zotero zitha kuperekedwanso.

Chovala cha shaft cha valavu chimapangidwa ndi chitsulo chosapanga dzimbiri cha Duplex ndipo chimagwiritsa ntchito kusokonezana ndi dzenje la shaft pathupi kuti chiteteze bwino dzenje la shaft kuti lisawonongeke ndi dzimbiri la madzi a m'nyanja.

Chitsulo Chosapanga Dzimbiri cha Duplex chimagwiritsidwa ntchito potseka nkhope ya mpando, kuti chiwonjezere mphamvu yolimbana ndi dzimbiri komanso kusavuta kuphimba chitsekocho.

Kulemba kwa Valavu:MSS-SP-25
Kapangidwe ndi Kupanga:API 609, EN 593
Kukula kwa Maso ndi Maso:API 609, ISO 5752, EN 558
Kulumikiza Komaliza:ASME B16.5, ASME B16.47, EN 1092, JIS B2220, GOST 12820
Mayeso ndi Kuyang'anira:API 598, EN 12266, ISO 5208, ANSI B16.104
Flange Yapamwamba:ISO 5211

Vavu ya Gulugufe Yosagwira Madzi a M'nyanja ya NSEN ili ndi kapangidwe kake kawiri kokhala ndi mapaketi ophatikizika, mwachitsanzo mapaketi a V PTFE+ V EPDM, kuti zitsimikizire kuti palibe kutayikira panthawi yokonza.

Mndandanda uwu uli ndi mphete yosungira, yomwe ingalepheretse madzi a m'nyanja kulowa pakati pa tsinde ndi shaft sleeve, kuthetsa dzimbiri la madzi a m'nyanja kwa onse awiri, komanso, kuletsa mchenga wamatope, malo osungira, zamoyo za m'nyanja kulowa mkati, zomwe zimapangitsa kuti zonse ziwiri zitseke, kuti valavu ikhale yodalirika pakugwiritsa ntchito kwake.

NSEN ikutsatira mosamalitsa ntchito zokonza zaulere, kusintha kwaulere ndi kubwezeretsa kwaulere mkati mwa miyezi 18 valavu itatha ntchito zakale kapena miyezi 12 itatha kuyikidwa ndikugwiritsidwa ntchito pa payipi pambuyo pa ntchito zakale (ndipo imayamba poyamba). 

Ngati valavu yalephera chifukwa cha vuto la khalidwe panthawi yogwiritsa ntchito mapaipi mkati mwa nthawi ya chitsimikizo cha khalidwe, NSEN ipereka chitsimikizo cha khalidwe chaulere. Ntchitoyi siidzatha mpaka kulephera kukhazikika ndipo valavuyo ikugwira ntchito bwino komanso kasitomala atasaina kalata yotsimikizira.

Pambuyo pa nthawi yomwe yatchulidwa, NSEN imatsimikizira kuti idzapatsa ogwiritsa ntchito ntchito zaukadaulo zabwino pa nthawi yake nthawi iliyonse yomwe chinthucho chikufunika kukonzedwa ndi kusamalidwa.