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 size 4 industrial component from the MS series is a directly controlled diaphragm regulator featuring a rotary knob with detent and an integrated pressure gauge. Operating across a pressure range of 0.8 bar to 14 bar with a regulation range of 0.3 bar to 4 bar, this unit delivers a normal nominal flow rate of 1200 l/min for compressed air and inert gases. It provides constant output pressure with secondary exhausting and return flow characteristics, exhibiting a maximum pressure hysteresis of 0.4 bar and moderate corrosion resistance class 2. Submit your exact part number, quantity, and application requirements to request a quote for this 225 g assembly.
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 595546. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.