The Y1236C valve is a variable output pressure-reducing valve that tracks suction pressure. It is designed for high-pressure oil return systems, or other situations where a differential pressure regulator is required.
This valve permits the oil level control mounted at the compressor to feed at any specified level because the pressurized oil at the control is slightly greater than crankcase pressure. Set the output as needed for the system and the Y1236C adjusts the flow to maintain the desired output pressure.