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 555761 is an industrial pneumatic vertical stacking pressure regulator for size 4 based on the ISO 5599-1 norm, featuring constant output pressure, secondary exhausting, and an optional pressure gauge capability. It provides a pressure regulation range of 0.1 MPa to 0.6 MPa (1 bar to 6 bar / 14.5 psi to 87 psi) with an inlet pressure range of 0.05 MPa to 1 MPa (0.5 bar to 10 bar / 7.25 psi to 145 psi), operating on compressed air conforming to ISO 8573-1:2010 [7:4:4] with possible oil lubrication. Weighing 1230 g with an IP65 and NEMA 4 degree of protection, this component mounts in any position on a manifold or individual sub-base within an ambient temperature range of -5 °C to 50 °C. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 555761. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.