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 530043 is a pneumatic industrial component featuring an unlockable check valve function, a QS-8 pneumatic connection 1, a G3/8 pneumatic connection 2, and a G1/4 pilot air port 21. Designed for screw-in mounting with an external thread, it operates within a pressure range of 0.5 bar to 10 bar and a pilot pressure of 1 bar to 10 bar (14.5 psi to 145 psi) across an ambient temperature range of -10 °C to 60 °C. The unit achieves a standard flow rate 1->2 (6-0) of 1200 l/min and a standard nominal flow rate 1->2 (6-5) of 830 l/min using compressed air conforming to ISO 8573-1:2010 [7:4:4]. Submit the exact part number, quantity, and application requirements for 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 530043. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.