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 194678 is a Size Maxi Series D directly controlled diaphragm regulator featuring a rotary knob with detent actuator lock and an integrated pressure gauge. Operating within a pressure range of 0.5 bar to 12 bar and a maximum operating pressure of 16 bar, this component delivers a normal nominal flow rate of 7000 l/min for compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases. It supports front panel mounting, in-line installation, or mounting with accessories, operating at temperatures between -10 °C and 60 °C with a product weight of 1680 g. 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 194678. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.