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 558343 is a pilot-controlled diaphragm regulator featuring a 3-way proportional pressure control valve function with an electrical actuation type and a soft sealing principle. It provides 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 (0.8 MPa), a normal nominal flow rate of 900 l/min, and operates on a DC voltage range from 21.6 V to 26.4 V with short-circuit and reverse polarity protection for all electrical connections. Equipped with a backlit LCD display, a mechanical spring reset method, and a maximum pressure hysteresis of 0.03 bar, this component supports any mounting position and maintains outlet pressure in an uncontrolled form if the supply cable breaks. Submit the exact part number, quantity, and application requirements to request 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 558343. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.