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 537494 is an electrical 4/2 monostable industrial component featuring a 20 mm valve size, a piston slide design structure, and a standard nominal flow rate of 800 l/min. It operates within a working pressure range of -0.9 to 8 bar utilizing a soft sealing principle, an air spring reset, and an external pilot air supply with a pilot pressure of 2 to 8 bar. Enclosed in an IP65 protection class housing, this piloted unit includes a 24 V DC, 1.5 W coil and achieves matching on and off switching times of 25 ms. Submit the exact part number, quantity, and application requirements for 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 537494. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.