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 industrial component, part number 8172140, is a double-acting valve actuator featuring an 80 mm piston diameter, an 80 size, a 50 mm stroke, and an ISO 5210 standard valve connection. This structural design integrates a piston, piston rod, tie rod 1, and cylinder barrel, incorporating elastic cushioning rings or pads at both ends and permitting mounting in any position. Operating within a pressure range of 0.2 MPa to 0.8 MPa (2 bar to 8 bar / 29 psi to 116 psi) with a nominal operating pressure of 0.6 MPa (6 bar / 87 psi), it supports position sensing via proximity switch and includes ATEX and UKEX explosion protection certifications for Gas Zone 1 and 2 and Dust Zone 21 and 22, along with EPL Db (GB) and EPL Gb (GB) ratings, II 2G ATEX gas category, II 2D ATEX dust category, and Ex h IIC T4 Gb ignition protection. Submit the exact part number, quantity, and application requirements to request 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 8172140. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.