Product Presentation:
RS502 series temperature and pressure reducing device realizes pressure reduction, noise reduction and temperature reduction in one valve. High-temperature steam enters from the valve inlet and first passes through the pressure reducing spool for a multi-stage decompression process, while the high-temperature steam passes through a multi-stage honeycomb noise reduction orifice plate where the noise is greatly reduced. The decompressed steam is subjected to the Laval nozzle (VH, VHP) installed at the center of the valve outlet to spray uniform low-temperature water for synthesis, to achieve the purpose of rapid temperature reduction.
1. Pressure-balanced type – The pressure-balanced spool is used in applications with large differential pressures. The spool adopts a porous pressure-balanced design to eliminate the unbalanced force of the medium differential pressure on the spool, thereby reducing the output force required by the regulating valve actuator.
2. Multi-stage pressure reduction – LDM’s unique multi-stage pressure reduction technology makes the pressure reduction effect more obvious and outstanding. Each stage of pressure reduction up to 4.0 ~ 5.0MPa, up to 3 levels.
Product Parameter:
Valve type: single seat, straight through, pressure reduction / noise reduction plug / temperature reduction device
Nominal diameter: import DN50-150 export DN100-700
Nominal pressure:PN16-160
Valve body material: cast steel 1.0619 (GP240H) / alloy steel 1.7357 (G 17CrMo5-5)
Welding material: 1.0425 (P265GH) / 1.7335 (13CrMo4-5)
Seat material:17 021.6(1.4006)+stellit6
Spool material: 17 123.6 (1.4078) carbide
Working temperature: -20-400℃ / -20-550℃
Medium: steam or other unadulterated liquid
Flange connection: from PN16-160 EN 1092-1 (2/2003) standard Convex / concave / flat flange
Weld end: 13 1075
Spool type: one to three stage pressure reducing
Flow characteristics: linear, equal percentage
Leakage class: Class III EN 1349(5/2001) <0.01% kvs Metal-to-metal seal Higher requirements up to Class VI (to be specified when ordering)
Packing: graphite packing
