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 8177443 is a 2/2-way closed monostable industrial component featuring pneumatic actuation and a G1/8 pneumatic connection for both ports 1 and 2. This welding spatter-resistant part includes an exhaust air one-way flow control function, manual exhaust, and detenting manual override, with a standardized nominal flow rate of 170 l/min in the flow control direction and 150 l/min to 200 l/min in the non-return direction. Designed for an operating pressure of 0.05 MPa to 1 MPa and an ambient temperature range of -5 °C to 60 °C, the unit operates with compressed air as per ISO 8573-1:2010 [7:4:4] and carries CE and UKCA markings per EMC and RoHS directives. Submit the exact part number, quantity, and application requirements to request a formal 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 8177443. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.