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 4165865 is a manual 5/3-way closed industrial component utilizing a piston gate valve structural design with a 20 mm width and G1/8 pneumatic working ports. It features a normalized nominal flow rate of 700 l/min, an operating pressure range of -0.95 bar to 10 bar, adjustable exhaust air function, and ATEX certification for zones 1, 2, 21, and 22. Designed for direct control and restricted to manual operation with a detenting manual override, this unit supports compressed air per ISO 8573-1:2010 [7:-:-] with oil lubrication possible. Submit the exact part number, quantity, and application requirements to receive a formal 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 4165865. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.