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 540157 is an industrial component with an 18 mm width based on the ISO 15407-2 norm, featuring a constant output pressure controller function with secondary exhausting and an operating pressure of 1 MPa or 10 bar. It offers 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), an inlet pressure of 0.5 bar to 10 bar, an IP65 and NEMA 4 degree of protection, and an ambient temperature range of -5 °C to 50 °C with a product weight of 367 g. This unit operates with compressed air as per ISO 8573-1:2010 [7:4:4] in any mounting position and includes CE and UKCA markings, optional pressure gauge capability, and a corrosion resistance class of CRC 0. Submit the exact part number, quantity, and application requirements for 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 540157. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.