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 527664 is a size 6 industrial component from the MS series functioning as a pressure regulator with an operating pressure range of 0.8 bar to 20 bar and a pressure regulation range of 0.3 bar to 16 bar. It features constant output pressure, primary pressure compensation, secondary exhausting, a maximum pressure hysteresis of 0.25 bar, and a normal nominal flow rate between 2200 l/min and 7500 l/min for compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases. Certified as c UL us - recognized (OL) and compliant with the EU explosion protection directive (ATEX) for Zones 1, 2, 21, and 22, it operates in ambient temperatures from -10°C to +60°C. Submit part number 527664, quantity, and application requirements for an RFQ.
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 527664. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.