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 industrial component, part number 550494, is a size 4 MS series assembly featuring an on/off valve, a filter regulator with a pressure gauge, and a standard mist lubricator with a 40 µm filtration grade and fully automatic condensate drain. It operates at 4.5 bar to 10 bar with a pressure regulation range of 4 bar to 9 bar, providing a normal nominal flow rate of 550 l/min utilizing 24 V DC 1.8 W coil characteristics and compressed air or inert gases. The unit incorporates a rotary knob actuator lock with detent, a plastic bowl guard, constant output pressure controller functions with primary pressure compensation, secondary exhausting, and return flow characteristics. 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 550494. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.