Yakhazikitsidwa mu 1900, Zurn ndiye mtsogoleri wotsogola padziko lonse lapansi wa mavavu, zinthu zamapaipi ndi zinthu zina zamafakitale. Zurn adadzipereka kuthetsa mayankho amadzi ndi madzimadzi kwa makontrakitala, eni nyumba ndi ogwiritsa ntchito. Zurn pakadali pano ili ndi malo angapo opangira zinthu komanso malo ogawa padziko lonse lapansi, omwe amatha kupereka chithandizo chachangu komanso choyenera kwa makasitomala aku North America.

Oatey inakhazikitsidwa mu 1916. Kwa zaka pafupifupi 100+, Oatey wakhala akupereka ma valve odalirika komanso apamwamba kwambiri, mapaipi ndi zopangira nyumba, malonda ndi mafakitale. Oatey adzipereka kukonza ndi kuwongolera moyo wa anthu kudzera muzinthu ndi ntchito zamaluso. Oatey ali ndi njira yogawa yokwanira yoperekera mayankho akatswiri kwa makontrakitala, omanga ndi mainjiniya m'mafakitale osiyanasiyana.

Viega idakhazikitsidwa ku 1899 ndipo likulu lawo ku Germany. Pakadali pano, zopangidwa za Viega zimapangidwa m'maiko 6 ndikufalitsidwa padziko lonse lapansi. Viega ali ndi gulu laukadaulo laukadaulo, lokhazikika pautumiki kuti lipereke mayankho opangidwa mwaluso kwa mainjiniya, opanga ndi ogawa. Kuchokera ku chidziwitso cha malonda kupita ku chithandizo chotsatira malonda, gulu la Viega lizitenga mozama.

Apollo Valves idakhazikitsidwa mu 1975 ndipo ndi gawo la Aalberts Group. Aalberts yadzipereka kupatsa makasitomala makina ophatikizira mapaipi, zinthu zamafakitale ndi zida zina zothandizira makasitomala kumaliza ntchito yawo mosavuta komanso moyenera.
Zogulitsa za Apollo Valves zimaphatikizapo mavavu ampira amkuwa, mavavu a chitsulo chosapanga dzimbiri, ma valve a mpira wa zitsulo za kaboni ndi zina zotero.

Kwa zaka zambiri, Neles wakhala akupereka mavavu akatswiri ndi njira zothetsera mafuta ndi gasi, mapepala ndi zamkati, biology, mankhwala ndi mankhwala, ndi mafakitale a zakudya. Neles ali ndi akatswiri aukadaulo okwana 2950 omwe ali ndi chidziwitso champhamvu chazogulitsa komanso chidziwitso chamakampani kuti athandize makasitomala kumaliza ntchito yawo modalirika komanso moyenera.