The EF-8180 is a RIFOair automatic vent valve from Rifox (Hans Richter GmbH) designed for venting air from vessels with fluctuating liquid levels. This DN80 valve is available in PN16 and PN25 configurations and uses a float-controlled venting system with a rotary slide valve control to vent air when the liquid level is low and reseal as the level rises, preventing liquid loss. It is suited for tank and system venting, with the PN25 variant rated up to 25 bar gauge (PN16 variants available in compatible configurations).
