I-OHL yasungulwa ngo-1867 futhi njengamanje ingelinye labakhiqizi abahamba phambili bamavalvu ezimboni eJalimane. Yonke imikhiqizo yenziwa eJalimane futhi ikhiqizwa ngokuhambisana ngokuqinile ne-EU kanye namazinga omhlaba.
Imikhiqizo ihlanganisa ama-valve evemvane e-eccentric ephindwe kathathu, ama-valve ovemvane ezihlalo ezinwebekayo, ama-butterfly aphakathi nendawo nokunye. Isetshenziswa kabanzi embonini yamakhemikhali, amandla elanga, ukwakha umkhumbi, ukwelashwa kwamanzi, imboni yephepha nokunye.

Yasungulwa ngo-1872, i-VAG yinkampani ye-valve etholakala eJalimane. I-VAG inabasebenzi abangu-1,100 emhlabeni wonke, ehlinzeka ngamasevisi ama-valve asheshayo futhi alula kumakhasimende avela emhlabeni wonke.
I-VAG izibophezele ekuhlinzekeni ngezixazululo zesimanje zokulawula inqubo yamadamu, izitshalo zamanzi, namanethiwekhi okuphakelwa kwamanzi okuphuza.
Imikhiqizo ihlanganisa i-Double-offset butterfly valves, i-Centric butterfly valve nokunye.

UParker useneminyaka engaphezu kweyi-100 futhi ubehlinzeka ngohlu olugcwele lwezixazululo zokwelashwa okuwuketshezi kumakhasimende ezimboni zomhlaba wonke noma ezentengiso ukuze asize amakhasimende axazulule izinselele zawo.
UParker ugxile kumakhasimende futhi uhlinzeka ngemiklamo ehlukahlukene yamavalvu ovemvane ukuze ahlangabezane nezidingo zamakhasimende. Ngokungeziwe kumavalve ovemvane, uParker futhi uhlinzeka ngezinhlobonhlobo zemishini yezimboni ongakhetha kuzo. UParker ungumhlinzeki onokwethenjelwa.

Burgmer yasungulwa ngo-1967 futhi ikomkhulu eJalimane, wahlanganyela ukukhiqizwa uvemvane valve. Wonke ama-valve akhiqizwa ngokuhambisana namazinga we-ISO9001:2018. Nikeza ngamavalvu evemvane ekhwalithi ephezulu kumakhasimende ezimboni. Ukusebenzela imboni yokuhlanza amanzi, imboni yokwakha imikhumbi, imboni ye-pulp, imboni yokuphehla ugesi, njll.

I-BK Armaturen yasungulwa ngo-1966, izibophezele ekuhlinzekeni amakhasimende ngemikhiqizo ejwayelekile yekhwalithi ephezulu kanye nezinsizakalo zokulethwa okusheshayo. Ngesikhathi esifanayo, i-BK ingama-valve aqondiswe kuhlelo lokusebenza futhi enziwe ngokwezifiso ukuze anikeze amakhasimende izixazululo zokulawula inqubo ezifaniswe kakhulu.
Imikhiqizo ihlanganisa ama-valve butterfly eccentric, ama-butterfly ama-valve agxilile, amavalve evemvane anemigqa ye-PTFE nokunye.