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 542243 is a pilot-controlled diaphragm regulator featuring a 3-way proportional pressure control valve with electrical actuation and soft sealing principles. It operates within an inlet pressure range of 0 bar to 8 bar (0 MPa to 0.8 MPa) and a pressure regulation range of 0.06 bar to 6 bar (0.006 MPa to 0.6 MPa), delivering a normal nominal flow rate of 900 l/min at a nominal width pressurization of 6 mm and an exhaust nominal width of 4.5 mm. Integrated with short-circuit and reverse polarity protection for all electrical connections, an LED display, and mechanical spring reset, this component functions on a DC operating voltage range of 21.6 V to 26.4 V in any mounting position. Please submit the exact part number, quantity, and application requirements to request a 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 542243. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.