- 1 - 4th Edition No. SS2-EGV100-0001 Special-Purpose Valve Multistage Pressure-Reduction Control Valve Model EGVM / EAVM OVERVIEWS The multistage pressure-reduction control valve has a three-stage, contoured pressure-reduction mechanism and a two-stage, Multiple-orificecage pressure-reduction mechanism in its trim and is used to control high differential pressure fluid flow. The multistage pressure-reduction mechanism effectively consumes energy and thereby suppresses cavitation that would otherwise occur due to a steep pressure drop. The throttling passage is simple in construction and this prevents scale from depositing or clogging. The multistage pressure-reduction mechanism operates over the entire range from fully closed to fully open. It is most suitable as a recirculation control valve on a boiler feed water pump or a pressurereduction valve for high-pressure reactants. SPECIFICATIONS Body Type EGVM : Straight-through, forged globe valve EAVM : Angle type, forged globe valve Nominal size 1., 2, 3, 4, 5, 6, 8 inches Pressure rating ANSI Classes 1500 and 2500 End connection Stud-bolted end (RF, RJ) Welded end BW (3 to 8 inches) Material JIS SFVA F11A, F22B, F5B ASTM A182 F5, F11, F22 Bonnet Plain bonnet (0 to 230 °C) Gland type Bolted gland Packing Grease provided. Graphite packing isused. Gasket Type Spiral wound, Serrated Material Graphite, Stainless steel (SUS316), (PTFE) Note) PTFE: Polytetrafluoroethylene Trim Valve plug Single-seat, three-stage contoured Equal percentage (%C) Linear (LC) Cage Multiple-orifice design, single stage, variable-throttling, and Multiple-orifice design, single stage, fixed-throttling. Material SUS440C, SUS630, SUS316 Stellite (#1, #6) 5 6 Specifications are subject to change without notice. “This product is designed for general industrial use.”