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 4031 is a mechanically actuated, directly controlled 3/2-way closed monostable industrial component featuring a piston seat structural design and an M5 pneumatic working port. Built with a die-cast zinc housing and NBR seals, it delivers a normalized nominal flow rate of 80 l/min at an operating pressure range of -0.95 bar to 8 bar, requiring an actuating force of 14.5 N. This ATEX-certified unit is rated for hazardous zones 1, 2, 21, and 22, operates within an ambient temperature range of -10 °C to 60 °C, and accommodates compressed air media according to ISO 8573-1:2010 [-:-:-] with necessary oil lubrication. 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 4031. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.