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 546155 is a servo-controlled diaphragm valve featuring a 2/2-way, closed, monostable valve function with electrical actuation and a soft sealing principle. It is designed for in-line installation with a 3/8 NPT fitting connection, a nominal width of 13.5 mm, and a non-reversible flow direction, utilizing an MD-... solenoid coil that is ordered separately. This component processes compressed air, inert gas, water, and neutral liquids, operating under liquid media pressures from 0.05 MPa to 0.6 MPa and gaseous media pressures from 0.05 MPa to 1 MPa. 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 546155. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.