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 543531 is an industrial pneumatic vertical stacking pressure regulator for position 4, built on the ISO 15407-1 norm with a width of 26 mm and a product weight of 305 g. It features a constant output pressure controller function with secondary exhausting, supporting a pressure regulation range of 0.2 MPa to 0.85 MPa (2 bar to 8.5 bar, or 29 psi to 123.25 psi) and an inlet pressure range of 0.5 bar to 10 bar. Designed with IP65 and NEMA 4 degrees of protection, this component operates in ambient temperatures from -5 °C to 50 °C and mounts onto a manifold sub-base or individual sub-base in any position. 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 543531. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.