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 8181687 is a pilot-controlled diaphragm regulator featuring a 3-way proportional pressure control valve with a soft sealing principle and electrical actuation. This component operates within a pressure regulation range of 0.06 bar to 6 bar (0.006 MPa to 0.6 MPa) with an inlet pressure range of 6 bar to 8 bar and a normal nominal flow rate of 1700 l/min normalized to DIN 1343. Equipped with short-circuit and reverse polarity protection for all electrical connections, a mechanical spring reset method, and a 3-digit LED indicator, the unit functions within a DC operating voltage range of 21.6 V to 26.4 V. Submit the exact part number, quantity, and application requirements to receive 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 8181687. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.