GYL20300 Pressure Relief Double Trim

                  ◆L-20300 is usually oriented structure, valve cage for pressing the valve seat, and as the poppet guide to facilitate the demolition. Trim for single-seat twin-spool structure, the structure of the double spool valve seat their joints tight, to ensure low leakage. Suitable for the control of the higher dropout various gas and fluid to make up for the two-seater sleeve valve leakage volume, temperature resistant sleeve single seat valve inadequate. Flow off design, when the valve adjustment or cut open a small spool as to regulate the flow or pressure relief; small spool to move to a certain position, driven by large spool as regulation or open the valve.
                  ◆ control valve parameter description
                  Trim Features: double spool pressure relief the cage guiding imbalance within the piece cage pressure valve cage quick release
                  Body type: straight-through angle formula z-shaped
                  On the valve cover types: normal temperature standard high-temperature heat low temperature elongation type
                  Publicity page picture Temperature Range: -196 ℃ ~ 538 ℃
                  Stem seal types: the ordinary standard packing high temperature packing seal bellows seal
                  Standard leakage class: CLASS V (standard type, metal seat) Class VI (selection, soft seat)
                  Percentage of the straight line of the flow characteristics:
                  And pipe connections: flanged buttweld
                  Adjustable ratio: 30:1