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 557772 is a pilot-controlled diaphragm regulator functioning as a 3-way proportional pressure control valve with electrical actuation and a soft sealing principle. It features a 5 mm nominal width pressurization, a 2.5 mm exhaust nominal width, an 800 l/min normal nominal flow rate, and a pressure regulation range of 0.06 bar to 6 bar operating on a 21.6 V to 26.4 V DC voltage range. Electrical connections include short-circuit and reverse polarity protection, while the integrated 3-digit LED display provides visual status feedback. Submit the exact part number, quantity, and application requirements to request a quote for this component.
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 557772. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.