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 1635985 is a directly controlled piston regulator featuring a 3 mm nominal width for both pressurization and exhaust, operating on a soft sealing principle with a mechanical spring reset method. This 3-way proportional pressure control valve closed utilizes electrical actuation with integrated reverse polarity protection for all electrical connections, a maximum cable length of 30 m, and an LED indicator display type. It supports a pressure regulation range of 0.4 bar to 40 bar (0.04 MPa to 4 MPa) within an operating pressure of 50 bar (5 MPa) and inlet pressure up to 50 bar (5 MPa), exhibiting a maximum pressure hysteresis of 0.4 bar (0.04 MPa / 5.8 psi). Safety instructions dictate that if the power supply cable breaks, the outlet pressure will drop to 0 bar, and the unit can be mounted in any position though upright is preferred. 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 1635985. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.