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 3-way proportional pressure control valve (Part Number 8156423) is a pilot-controlled diaphragm regulator featuring a soft sealing principle, a 5 mm nominal pressurization width, and a 2.5 mm exhaust nominal width. Operating on a DC voltage range of 21.6 V to 26.4 V, this electrical component delivers a pressure regulation range of 0.06 bar to 6 bar, an inlet pressure of 6 bar to 8 bar, and a normal nominal flow rate of 800 l/min with a 3-digit LED display. It includes short-circuit and reverse polarity protection for all electrical connections, a mechanical spring reset method, 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 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 8156423. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.