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 8172704 is a direct-controlled 3/2 monostable rocker valve featuring a diaphragm seal, soft sealing principle, and a 1.6 mm nominal width with a reversible flow direction. Constructed with EPDM and PEEK media-contacting materials and a side electrical connection utilizing a cable with plug connection pattern H, this size 16 component measures 17 mm wide and includes a flange fluid connector for liquid or gaseous media up to a 5 µm particle size. Designed for any mounting position using a through-hole for an M2.5 screw, it incorporates a mechanical spring reset method without manual override. Request a formal quotation by submitting the exact part number, quantity, and application parameters.
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 8172704. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.