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 part number 531794 is an industrial component of the MS series in size 4, featuring a directly controlled diaphragm regulator with a continuous compressed air supply and a rotary knob actuator lock with detent that can be closed with accessories. Operating with compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases within an operating pressure range of 0.8 bar to 14 bar, this constant output pressure controller provides a normal nominal flow rate of 1500 l/min and a pressure regulation range of 0.5 bar to 12 bar. It includes secondary exhausting, a return flow characteristic, a maximum pressure hysteresis of 0.25 bar, and a pressure gauge set up for G1/8, with an overall product weight of 222 g and moderate corrosion resistance class (CRC) 2. 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 531794. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.