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 4106821 is a 20 mm wide piston gate valve featuring a 5/3 exhausted valve function, a nominal width of 7 mm, and a normal nominal flow rate of 900 l/min with G1/4 pneumatic working ports. This directly controlled, manually actuated component offers a soft sealing principle, positive overlap lap, adjustable exhaust air function, and detenting manual override supporting a maximum switching frequency of 0.5 Hz across an operating pressure range of -0.95 bar to 10 bar. Certified for ATEX Zone 1, Zone 2, Zone 21, and Zone 22 hazardous environments, it operates on compressed air meeting ISO 8573-1:2010 [7:-:-] standards with oil lubrication possible. 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 4106821. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.