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 8190240 is an industrial component of the MS series, size 4, featuring a directly controlled diaphragm regulator with a rotary knob with detent actuator lock and a red/green scale pressure gauge. It delivers a normal nominal flow rate of 1800 l/min, a pressure regulation range of 0.3 bar to 7 bar across an operating pressure of 0.8 bar to 14 bar, and incorporates secondary exhausting with a return flow characteristic and a maximum pressure hysteresis of 0.25 bar. The unit operates with compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases within a temperature range of -10 °C to 60 °C, maintains a moderate corrosion resistance class of CRC 2, and weighs 225 g. Submit the exact part number, quantity, and application requirements to request a quote.
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 8190240. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.