2, butterfly valve: also known as the flap valve, is a simple structure of the control valve, can be used for the low pressure pipeline medium switch control butterfly valve is refers to the closing piece (disc or butterfly plate) for the disc, rotating around the valve shaft to open and close a valve.
2, Papilio valvae: Papilio valvae simplici structurae, parvo volumine, levi pondere, materiali consummatione humilis, magnitudini institutionis parvae, cursui celeri, 90° rotatione reciproco, torques incessus parvae, etc. Ponitur abscindere, converti. et compone medium in pipeline, cum bonis fluidis temperantiae notis et obsignandis agendis.
Diversus usus
I, pila valvae: adhiberi potest ad dispositionem et imperium fluidum, quod sigillum durum V-typus pilae valvae v-typus pilae nucleus et valvae metalli durae sedes vim validam tondendam, praesertim aptam ad fibra, particulas solidas et alia media continentem. . Multi- passi pila valvae in pipelino non solum confluentem instrumentorum communicationis molliter moderari possunt, directionem shunt ac fluunt, sed etiam omnem canalem claudunt et alios duos canales connexos faciunt.
