Mavavu a Nickel Aluminium-bronze ndi oyenera kugwiritsa ntchito madzi ambiri a m'nyanja, makamaka pamagwiritsidwe otsika kwambiri. Vavu yodziwika kwambiri ku NAB ndi ma valve akulu akulu omwe amapereka amabwera ndi thupi la NAB ndi trim monel, zomwe zimaloŵa m'malo mwa ma valve a Monel athunthu.

Mawonekedwe a NAB C95800 Butterfly Valves

Mfundo yakuti NAB ndi

• zotsika mtengo (zotsika mtengo kuposa zina zakunja);
• zokhalitsa (zofanana ndi magwiridwe antchito pa dzimbiri wamba, pitting ndi cavitation to super duplex alloys komanso bwino kwambiri kuposa ma aloyi wamba)
• valavu yabwino (yopanda ndulu, imakhala ndi zinthu zabwino kwambiri zotsutsana ndi kuipitsa komanso ndi kondakitala wabwino wa matenthedwe), imapangitsa kukhala chisankho chabwino kwambiri cha mavavu ogwiritsira ntchito madzi a m'nyanja.

Kugwiritsa Ntchito Mavavu a Gulugufe a NAB

Mavavu agulugufe a NAB akhala akugwiritsidwa ntchito kwambiri pazamadzi am'nyanja kwa zaka zambiri ndipo amadziwika kuti ndi yankho labwino kwambiri.