Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo 539996 is a modular industrial component featuring a 1.4 mm nominal width Laval nozzle, a 20 mm width dimension, an open muffler construction type, and an any mounting position. It delivers high vacuum and standard ejector characteristics with a 40 µm grade of filtration, a non-detenting manual override that also operates via control keys, and integrated electric on-off valve, filter, open muffler, and vacuum switch functions. Featuring piezoresistive relative pressure measurement, short-circuit and reverse polarity protection, a 4-digit backlit LCD displaying -0.999 bar to 0 bar in bar units, and a switching input meeting IEC 61131-2, this unit provides NC/NO switching element functions with window and threshold value comparator modes alongside an open valve function. Submit the exact part number, quantity, and application requirements to request a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 539996. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.