This kind of valve controls the output pressure to save line pressure on the special point automatically. this valve is normally close and when input pressure increase ,it gets gradually open. The correct flow direction are shown by the arrow on the valve body. Position of plug and free area between plug and seat controls the rate of steam flow. In this valve, a system is provided. This system works as same as pressure reducing valve and is installed in apparel of PCV by using of a 3.8" pipe. The PRV volume is adjusted on the required output pressure. The extras pressure of main line are transferred to the pilot system and causes to open it, as result, pressure is discharged the pressure behind accordion piece then plug and seat are separated , extra pressure is vented
Excess Pressure Control Valve PCV Type 23-35
Type 23-35 steam pressure reducing valve controls the output pressure to keep line pressure in the special set point automatically. This valve is normally closed and as the input pressure increases, it gets gradually open. This valve is suitable for all fluids apart from inflammable gases. The correct direction of steam in the valve is indicated by one arrow on its body. Position of plug and free area between the plug and seat controls the rate of steam flow. This function is performed by a pilot valve and adjustment it on special set point. The extra
This valve must be installed horizontally in pipelines and in this way actuator will be vertical and downside. Pay attention to flow direction mark on the valve. After installation get assure that it is not compressed with pipeline. Because of its weight, this valve must have a supporting guide close to connection place.