RT03B123

The RT03B123 valve is part of the Pressure Control Valves series and is manufactured by Vickers. It is intended to stabilize hydraulic circuits by limiting line pressure in automation skids. The unit relies on hydraulic actuation so no external electrical pilot is required. A cast-iron body withstands mechanical stress, while a pressure-control design modulates outlet pressure to protect downstream devices. The maximum operating pressure is 210 bar, giving headroom for medium-pressure power units. The valve handles flow rates up to 45 l/min, allowing it to serve small to mid-sized actuators without inducing excessive pressure drop. Pipe mounting simplifies installation on existing manifolds, and the design is tailored for petroleum oils commonly used in industrial hydraulic systems.

The female port connection accepts 3/8-inch piping, which promotes straightforward hook-up without adapter blocks. The passage area maintains moderate velocity under application flow demands so cavitation is minimized. The unit operates from −20 °C to 70 °C, supporting cold-start conditions and elevated fluid temperatures found in return lines. ISO 19/17/14 fluid cleanliness is required to keep the control spool from sticking and to maintain repeatable cracking pressure during long duty cycles. The defined connection style lets equipment builders align the housing with existing tube runs during installation, and the cleanliness target reduces downtime linked to contamination. These temperature, cleanliness, and connection limits enable reliable regulation in automated hydraulic machinery.