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.

SMC
The SMC 10-VQ121 is an official catalog model belonging to the 10/21-VQ Clean Room Valve series, designed with dual clean series specifications for low particle generation and exclusion of copper, fluorine, and silicon. This valve features a VQ1 configuration, a 2 position single actuation mechanism, a metal seal type, and operates on a 24 VDC coil voltage with a light and surge voltage suppressor. Electrical entry is managed via a plug connector with lead wire, while manual override is provided in a non-locking push type requiring a tool. Submit the exact part number, quantity, and application requirements for an official 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 SMC 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 SMC 10-VQ121. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.