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 530331 is a size 6 MS-series directly-controlled diaphragm regulator featuring initial pressure compensation, secondary exhaust, and a looped-through compressed air supply for maintaining a constant output pressure within a 0.3 to 7 bar control range. It supports a standard nominal flow rate of 6,300 l/min across a working pressure of 0.8 to 20 bar, utilizing G1/2 pneumatic connections and operating with compressed air meeting ISO8573-1:2010 [7:4:4] or inert gases. Constructed without copper or PTFE and conforming to RoHS, this 747 g component includes a lockable rotary knob actuator and permits optional front panel or line installation in any assembly position. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 530331. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.