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 21-VQ147 is an official catalog model within the 10/21-VQ Clean Room Valve series designated as copper, fluorine, and silicon-free with low particle generation. This unit features VQ1 architecture with options for single or double 2-position actuation and closed, exhaust, or pressure center 3-position configurations alongside metal or rubber seal types and standard, high pressure, or low wattage function variants. Electrical and pneumatic parameters encompass 24 VDC or 12 VDC coil voltages with light and surge voltage suppressors, plug connector or lead wire entries, manual override choices, and side-ported M5 threads or one-touch fittings for ø3.2, ø4, and ø6 cylinders. Submit the exact part number, quantity, and application requirements to request a formal 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 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 21-VQ147. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.