The FISHER 67DFR – 2343 – 119232 regulator is a pressure – reducing filter regulator in the FISHER 67D series. Here is its introduction:

Working Principle: Rotate the adjusting screw clockwise, and the adjusting spring will be stressed to press the diaphragm downward. The valve core and the chassis connected to the diaphragm will move downward. At this time, a passage is formed above the valve core chassis, and the air source pressure is output through the outlet. When the outlet pressure rises to the set pressure, it is transmitted to the bottom of the diaphragm through the outlet pressure sensing hole, maintaining balance with the spring pressure and keeping the set pressure. When the outlet pressure is greater than the set pressure, the hole between the diaphragm and the chassis opens, and the outlet pressure is transmitted to the spring chamber through this hole and discharged to the atmosphere to maintain the set pressure.