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 546171 is a servo-controlled diaphragm valve featuring a 2/2-way, closed, monostable valve function with a 13 mm nominal width and soft sealing principle. Designed for in-line installation with a 3/8 NPT fitting connection and a preferred upright mounting position, this electrically actuated component operates with compressed air, inert gas, water, and neutral liquids in a non-reversible flow direction. It accommodates a medium pressure range of 0.05 MPa to 1 MPa for gaseous media and 0.05 MPa to 0.6 MPa for liquid media, while withstanding 4 MPa of burst and overload pressure with a 0.5 bar differential pressure. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this Festo industrial 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 546171. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.