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 558347 is a pilot-controlled diaphragm regulator featuring a 3-way proportional pressure control valve function with an electrical actuation type and soft sealing principle. It operates within a pressure regulation range of 0.06 bar to 6 bar (0.006 MPa to 0.6 MPa), an inlet pressure range up to 8 bar, and delivers a normal nominal flow rate of 900 l/min at a DC operating voltage from 21.6 V to 26.4 V. This component includes a backlit LCD, a 6 mm nominal width pressurization, a 4.5 mm exhaust nominal width, short-circuit and reverse polarity protection for all electrical connections, a mechanical spring reset method, and a safety position that maintains the outlet pressure in uncontrolled form if the supply cable breaks. 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 558347. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.