Device against siphon back flow, for hydraulic valves having a cartridge with plane plates for flux control

摘要: A hydraulic faucet intended to house a cartridge containing flux control members shaped as plane plates of hard material, and comprising valve body removable cover, wherein some inlet passages for ambient air are provided in register with the one-way elastic lip is housed within between an outer region faucet, communicating through outside ambient, inner delivery outlet faucet. This one way inserted such sense that it remains sealingly closed when pressure not lower than which present automatically opens decreases, even slight amount, under pressure, so no siphon back flow may arise.