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 540440 is an electrical 3/2-way monostable open industrial component featuring a direct control type and a poppet valve structural design with a mechanical spring reset method. This 10 mm wide unit operates at 24V DC within a pressure range of 0 bar to 6 bar (0 psi to 87 psi) and provides a normal nominal flow rate of 10 l/min through a sub-base pneumatic working port. Certified by c UL us - recognized (OL) under certificate UL MH19482, the assembly includes adjustable exhaust air function, soft sealing, a 0.7 mm nominal width, and both detenting and non-detenting manual override options with an IP40 degree of protection. 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 540440. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.