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 part number 540026 is an industrial component featuring a modular structural design with a 20 mm width dimension and an open muffler construction type. This device utilizes a 0.7 mm nominal width Laval nozzle to deliver high vacuum and standard ejector characteristics, backed by a 40 µm filtration grade, non-detenting manual override, and any mounting position capability. Integrated functions comprise an electric ejector pulse valve, flow control valve, electric on-off valve, filter, check valve, open muffler, and a piezoresistive vacuum switch measuring relative pressure with short-circuit and reverse polarity protection. Additional features include an N.O. contact switching element function, threshold value comparator and fixed hysteresis switching functions, closed valve function, IEC 61131-2 compliant switching input, LED display and switching position indication, and teach-in setting options. Please submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 540026. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.