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 539983 is a modular industrial component featuring a 0.45 mm Laval nozzle nominal size, a 20 mm grid dimension, and an open silencer design with any assembly position. This unit incorporates an electrical ejector pulse valve, a flow control valve, an electrical on-off valve, a filter, an electrical air-saving circuit, a non-return valve, an open silencer, and a vacuum switch, supporting high vacuum or standard ejector characteristics and 40 µm filtration. It includes a piezoresistive relative pressure measuring principle with short circuit strength, polarity-protected electrical connections, IEC 61131-2 standard switching inputs, pushing and button manual overrides, and a 4-place backlit alphanumeric LCD displaying -29.5 to 0 inchHg. Submit the exact part number, quantity, and application requirements to request a quote for this component.
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 539983. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.