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 part number 540159 is an 18 mm industrial component based on the ISO 15407-2 norm, featuring a constant output pressure controller function with secondary exhausting and an operating pressure of 0.6 MPa or 6 bar. This device offers a pressure regulation range of 0.02 MPa to 0.6 MPa (0.2 bar to 6 bar, or 2.9 psi to 87 psi) with an inlet pressure range of 0.5 bar to 10 bar, an IP65 and NEMA 4 degree of protection, and a product weight of 367 g for mounting in any position. It operates with compressed air as per ISO 8573-1:2010 [7:4:4] where oil lubrication is possible and required for further use, carrying CE and UKCA markings per relevant electrical directives. Submit the exact part number, quantity, and application requirements to receive a formal 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 540159. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.