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 546091 is a 42 mm wide industrial component designed for pneumatic vertical stacking as a reversible pressure regulator for ports 2 and 4, featuring constant output pressure with secondary exhausting and a regulation range of 0.5 bar to 6 bar (0.05 MPa to 0.6 MPa, 7.25 psi to 87 psi). Built to ISO 5599-2 norms with IP65 and NEMA 4 protection degrees, this 920 g unit operates with compressed air per ISO 8573-1:2010 [7:4:4] across an inlet pressure range of 0.5 bar to 10 bar and ambient temperatures from -5 °C to 50 °C, supporting mounting on manifold or individual sub-bases in any 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 546091. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.