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 173655 is a mini industrial component from the D-series featuring 3/8 NPT pneumatic connections for both ports 1 and 2. It operates within a pressure range of 0.1 MPa to 1.6 MPa (1 bar to 16 bar) and regulates pressure from 0.5 bar to 7 bar with a maximum pressure hysteresis of 0.02 MPa (0.2 bar / 2.9 psi). The unit processes compressed air as per ISO 8573-1:2010 [7:4:4] or inert gases within a medium and ambient temperature range of -10 °C to 60 °C, supporting oil lubrication and complying with VDMA24364-B1/B2-L LABS conformity and RoHS material requirements. 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 173655. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.