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 537555 is an electrical, 20 mm industrial component featuring a 3/2 closed, monostable valve function and a piston slide design structure. Operating at a working pressure of -0.9 to 8 bar with an external pilot air supply of 2 to 8 bar, this piloted unit delivers a standard nominal flow rate of 800 l/min through a 7 mm nominal size. It utilizes an air spring reset, soft sealing principle, non-reversible flow direction, and non-throttleable exhaust-air function, achieving an IP65 protection class alongside 20 ms on and off switching times. The component operates on 110 V AC at 50/60 Hz with a pick-up power of 3.1 VA and holding power of 2.2 VA, and includes detenting and pushing manual override options for any assembly position. 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 537555. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.