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 555776 is an ISO 5599-2 compliant industrial component functioning as a pneumatic vertical stacking pressure regulator for 4 with a width of 54 mm and a product weight of 1230 g. It provides a constant output pressure with secondary exhausting across a regulation range of 0.1 MPa to 1 MPa (1 bar to 10 bar, or 14.5 psi to 145 psi) and supports an inlet pressure range of 0.05 MPa to 1 MPa (0.5 bar to 10 bar, or 7.25 psi to 145 psi) using compressed air as per ISO 8573-1:2010 [7:4:4]. Featuring IP65 and NEMA 4 protection degrees, an ambient temperature range of -5 °C to 50 °C, and a corrosion resistance class of CRC 0, this unit mounts in any position on a manifold sub-base or individual sub-base with optional pressure gauge capability and oil lubrication compatibility. 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 555776. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.