Ngemveliso ye-NSEN, phumelela uvavanyo lwamangqina ngokwe-BS 6364:1984 esemgangathweni yi-TUV. I-NSEN iyaqhubeka nokuhambisa i-batch ye-bi-directional sealing cryogenic butterfly valve.

Ivalvu ye-Cryogenic isetyenziswa kakhulu kushishino lwe-LNG. Njengoko abantu benika ingqalelo ngakumbi kwimiba yokusingqongileyo, i-LNG, olu hlobo lwamandla acocekileyo luyathandwa.

Ekubeni ubushushu be-LNG phantsi koxinzelelo oluqhelekileyo buyi--162℃, kwaye buneempawu zokutsha nokuqhuma, ivalvu yobushushu ye-cryogenic ayihlangabezani nje neemfuno zobushushu obuphantsi bokusetyenziswa, kodwa ikwafuna ukuqwalasela uyilo lokukhusela umlilo. Kungenxa yezi mfuno ukuba ukhuseleko kunye nokuthembeka kweevalvu ze-cryogenic kuya kuba phezulu kuneevalvu eziqhelekileyo.

Okubaluleke ngakumbi, umzimba wevalvu, ipleyiti yebhabhathane, inxalenye yolwandiso kunye namalungu angaphakathi kufuneka acutshungulwe ngendlela ecacileyo ngaphambi kokuba agqitywe ukuze kupheliswe impembelelo yotshintsho lwesigaba. Ngaphandle koko, utshintsho lwesigaba se-martensite luya kwenzeka kumaqondo obushushu aphantsi, nto leyo ebangela ukuguquka kwevalvu, nto leyo ebangela ukuba ivalvu ivuza.

Uhlobo loqhagamshelo lwale mpahla yiflange kunye ne-wafer, kwaye izinto zomzimba wevalvu kunye nediski yi-CF8M. Izinto zokuvala ziseseyilwe yindandatho yokutywina eqinileyo yesinyithi, kunye nokutywinwa kwesiqu sokupakisha esincinci.

Ukuba unethemba lokufunda okungakumbi okanye ukufumana isisombululo seprojekthi yakho, wamkelekile ukuba unxibelelane nathi.