Onani valavundikudalira kuyenda kwa sing'anga yokha ndikutsegula ndi kutseka valavu ya valve, yomwe imagwiritsidwa ntchito pofuna kuteteza valavu yobwerera kumbuyo, yomwe imatchedwanso check valve, valve ya njira imodzi, valve countercurrent, ndi valve back pressure valve. Vavu yowunikira ndi mtundu wa valavu yodziwikiratu, ntchito yake yayikulu ndikuletsa kubweza kwa media, kupewa kupopera ndi kuyendetsa galimoto, komanso kutulutsa kwapakati.

Newsway Valve Company ndi katswiri wopanga valavu yoyang'ana pansiku China. Zathuvalavu yoyendera mbale ziwirindi mavavu owunika mbale imodzi amapezeka muchitsulo choponyedwa, chitsulo cha ductile, chitsulo chosapanga dzimbiri, chitsulo cha duplex, chitsulo chapamwamba cha duplex, aluminium bronze, ndi zitsulo zina zapadera za alloy. Kukula kuyambira 1/2″ mpaka 24″, kukakamiza CLASS 150 mpaka CLASS 2500LB, mipando yopezeka ku NBR, EPDM, PTFE, STELLITE, chitsulo cha alloy, ndi zina.

Ma valve a NEWSWAY VALVE COMPANY amachepetsa zinthu zogwiritsidwa ntchito, amachepetsa ndalama zopangira zinthu komanso kutaya mphamvu panthawi yogwira ntchito, zomwe zimathandiza kuteteza chilengedwe ndi kusunga mphamvu. Poyankha zolimbikitsa kuteteza mphamvu ndi kuchepetsa kutulutsa mpweya, ikupita patsogolo pakuwongolera mphamvu zamagetsi ndikupereka mafotokozedwe aukadaulo wamapangidwe ndi kasamalidwe.