Hikelok 8 mavavu a singano amatha kuwongolera bwino kuyenda kwake ndipo amatha kutseguka komanso kutsekedwa ndi ma tsinde osiyanasiyana, mawonekedwe oyenda, zida, ndi kulumikizana komaliza.
Mavavu a singano a NV1 ali ndi thupi limodzi lopangidwa.
Mavavu a singano a NV2 ali ndi gawo limodzi lolemera lopangidwa ndi thupi komanso chitetezo kumbuyo singano pamalo otseguka. Kuthamanga kwakukulu kogwira ntchito ndi 10000 psig (689 bar)
Ma valve a singano a NV3 ali ndi mgwirizano-bonnet yopangira chitetezo.
Mavavu a singano a NV4 ali ndi makina onyamula zodzaza ndi moyo, ndipo mtedza wake wonyamula umathandizira kusintha kwakunja.
Ma valve a singano a NV5 ali ndi kapangidwe kake kocheperako.
Ma valve a singano a NV6 ali ndi chogwirira chamtundu, chomwe chimatha kutseguka ndikutsekedwa mwachangu. Ili ndi zotsekera mipando yofewa, ndipo chisindikizo chake cha o-ring sichifunikira kusintha.
Mavavu a singano a NV7 ali ndi mapangidwe osazungulira. Chogwirira chake chimalepheretsa zowononga kulowa m'zigawo zogwira ntchito, ndipo nsonga yake yosinthika imathandizira kukonza.
Mavavu a singano a NV8 ali ndi ma bar stock valve body. Tsinde lake lapansi losazungulira limathandizira kusindikiza.
Hikelokndi mmodzi wa kutsogolera akatswiri opanga mavavu zida ndi zovekera ku China.Kusankha zinthu mokhwima ndi kuyezetsa, ukadaulo wapamwamba kwambiri wopangira, kuwongolera kosalala kwakupanga ndi kupanga akatswiri ndi kuyang'anira ogwira ntchito akuperekeza zinthu., kupanga mazana apamwamba kwambirimavavundizopangira. Ndilo chisankho chabwino kwambiri pakugula koyimitsa kamodzi, kupulumutsa nthawi ndi mphamvu.
Pambuyo pazaka zoyesayesa, Hikelok wakhala wogulitsa makasitomala odziwika bwino monga Sinopec, PetroChina, CNOOC, SSGC, Siemens, ABB, Emerson, TYCO, Honeywell, Gazprom, Rosneft ndi General Electric. Hikelok wapambana kutamandidwa mogwirizana kuchokera kwa makasitomala chifukwakasamalidwe akatswiri, luso lamakono ndi utumiki wowona mtima.
