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 531825 is an industrial component from the MS series in size 6, featuring a directly-controlled diaphragm regulator design with a looped-through compressed air supply and initial pressure compensation. This unit operates with an inlet pressure range of 0.8 to 20 bar, a pressure control range of 0.3 to 4 bar, and delivers a standard nominal flow rate of 600 l/min using compressed air as the operating medium. It includes a pressure gauge, a secondary exhaust function, a maximum pressure hysteresis of 0.25 bar, and an actuator lock that is lockable with accessories. Weighing 747 g, the device supports any assembly position and offers mounting options for line installation, front panel installation, or optional use with accessories via its two QS-8 pneumatic connection ports. Submit the exact part number, quantity, and application requirements to receive a quote for this 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 531825. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.