NORTECHis e 'ngoe ea linaha tse etellang pele ChaenaValve ea Lefatše Moetsi le Mofani.

Valve e thibang e bolela lentsoe heke leo ho lona karolo e kwalang (sephara se otlolohileng) e tsamayang moleng o bohareng wa setulo sa valve. Ho ya ka sebopeho sena sa motsamao wa disk ya valve, phetoho ya kou ya setulo sa valve e lekana le stroke ya valve. Kaha stroke e butsweng kapa e kwalwang ya kutu ya valve ya mofuta ona wa valve e kgutshwane,
Ho feta moo, e na le mosebetsi o tšepahalang haholo oa ho khaola, 'me hobane phetoho ea kou ea setulo sa valve e lekana le ho otloa ha disc ea valve, e loketse haholo bakeng sa ho lokisa phallo. Ka hona, mofuta ona oa valve ea ho koala o loketse haholo ho sebelisoa e le ho koala kapa ho lokisa le ho thiba.
Molemo o totobetseng ka ho fetisisa oa valve ea lefats'e ke hore nakong ea ho bula le ho koala, khohlano pakeng tsa lesoba le sephara le bokaholimo bo pharaletseng ba ho koala e nyane ho feta ea valve ea heke, kahoo ha e tsofale. Bolelele ba ho bula hangata ke 1/4 feela ea bophara ba tsela ea setulo sa valve, kahoo e nyane haholo ho feta valve ea heke.
Hangata ho na le sebaka se le seng feela sa ho tiisa 'meleng oa valve le diski ea valve ea valve ea ho emisa, kahoo ts'ebetso ea tlhahiso ea valve ea ho emisa e ntle haholo, 'me valve ea ho emisa e bonolo ho e hlokomela. Khatello e tloaelehileng kapa boemo ba khatello ea valve ea lefats'e: PN1.0-16.0MPa, ANSI CLASS150-900, JIS
10-20K, bophara bo tloaelehileng kapa caliber: DN10~500, NPS1/2-36, mokhoa oa ho hokahanya valve ea ho emisa: flange, ho tjheseletsa mokokotlo, khoele, jj., mocheso o sebetsang: -1969℃-700℃,
Mokhoa oa ho khanna: ka letsoho, bevel gear drive, pneumatic, electric, hydraulic, gas-liquid linkage, electro-hydraulic linkage,
Lisebelisoa tsa 'mele o pharaletseng: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mо2Ti, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L), Ti,
Lisebelisoa tse fapaneng li sebelisoa bakeng sa phetoho ea ho khaola, e ka sebelisoang mefuteng e fapaneng ea litaba tse kang metsi, mouoane, oli, asiti ea nitric, asiti ea acetic, oxidizing medium, urea, jj.