UFrank Lockwood wasungulwa ngo-1977 futhi inhloko yakhe iseHouston, e-USA.UFrank Lockwood unolwazi olunzulu lwe-valve nolwazi lwemboni ukuze anikeze amakhasimende amapayipi ekhwalithi, ama-valve, okokufakwayo, ama-flanges nokuphathwa kwephrojekthi, okuhlanganisa ukuklama, ukuzenzekelayo, i-QA, njll.
Imikhiqizo kaFrank Lockwood ihlanganisa ama-valve e-activator kagesi angaphumeleli, ama-modulating actuator kagesi, ama-valve kagesi angasebenziyo nokunye.

I-Flotech yasungulwa ngo-1961 futhi ikomkhulu layo lihlala e-United States.I-Flotech ibikhulisa uhla lwayo lwemikhiqizo namasevisi phakathi neminyaka ngokuthola ezinye izinkampani ezingaphansi kwayo.U-Flotech uzibophezele ekuhlinzekeni amakhasimende ngezinhlobo ezintsha zama-valve namadrayivu, kanye nezinsizakalo zokunakekela.
Imikhiqizo ihlanganisa i-valve yebhola kagesi, i-valve butterfly kagesi, i-pneumatic ball valve namanye ama-automatic valves.

I-DYNAQUIP Controls yasungulwa ngo-1935. Iminyaka engaphezu kwengu-70, bezinikezele ekunikezeni umkhiqizo omuhle kakhulu kanye nenkonzo yamakhasimende yezimboni zikawoyela negesi, ukudla neziphuzo, njll.Isevisi eguquguqukayo ukuhlangabezana nezidingo zamakhasimende ezimboni, zokuhlala kanye nezohwebo.Uhla lomkhiqizo luhlanganisa i-automatic ball valve, i-automatic butterfly valve, i-actuator ezenzakalelayo njalonjalo.

I-Cr-tec Engineering iwumphakeli wamavalvu kagesi, womoya kanye nama-manual.Imikhiqizo ingasetshenziselwa ukwelashwa okuhlukahlukene okuketshezi.Amasevisi kawoyela negesi, Ukuhlanza Indle, ukwelashwa kwamanzi okuphuza, izitshalo zikagesi, izinqubo ezishintshayo, ukwakhiwa kwemikhumbi, njll.
Imikhiqizo ihlanganisa ama-valve kagesi e-2-way ball, ama-valve kagesi we-3-way ball, namanye ama-automatic valves.

I-Schneider yinkampani eyaziwayo enomlando weminyaka engaphezu kwe-180 ezinikele ekunikezeni izixazululo ezinobungani bemvelo nezisimeme emhlabeni wonke.I-Schneider inezinhlobo eziningi zama-valve amabhola kagesi ukuhlangabezana nezidingo zezimboni zakho ezahlukene.