Valves - Import export

A Steam Conditioning Valve / Combined PRDS Valve is the combination of pressure reduction and temperature reduction of superheated steam to fit process needs, protect downstream equipment or allow the use of less expensive materials or schedules for downstream piping. This is done with a pressure reducing valve and a spray water addition section either as separate units or a single device. Pressure reduction is carried out with a pressure reducing trim within the valve body, usually multi stage pressure reduction. The pressure is controlled by an upstream or downstream pressure controller, signaling the valve to modulate to maintain the pressure at the required set point.Temperature is controlled by adding water to the steam in such away that it will get fully evaporated in the steam, termed as desuperheatmg. These applications are normally considered to be some of the most severe services of any valves in a modem steam plant.

Jet Flow Safety Valve represent the most advance technology in value designed for use in intermediate power boiler and organic fluid vaporizer service. Built in conformance to section I of the ASME boiler and pressure vessel code, all capacities am certified by the national board of boiler and pressure vessel inspector at 5% over pressure. Jet Flow Designed Safety Valve with Full Nozzle & hardened disc to minimize maintenance and increase seat life Open bonnet & Close bonnet both design have maximum set pressure 75 bar in Safety Valves. Material of Construction. Set pressure in psig or Kg/cm2 (g). Maximum inlet temperature. Allowable overpressure. ServiceSpecify either the media to be handled or the following physical properties or both. LiquidsSpecific gravity (Water = 1) GasesSpecific gravity (Air=1) VaporsMolecular weight (mixture of vapors. The average molecular weight) Back pressure, if any. Required capacity. Type of Endconnections. Preferred inlet size.

Turbine bypass valves play a very major role in Power Plant applications. Within a short period of twenty four hours, a power plant may be required to operate at minimum load, increase to maximum capacity for major part of the day, immediately lower back to minimum load and then back to maximum capacity. Bypass System permit unit start up and shutdown in a lifesaving manner for critical heavy components in boiler and turbines. Jet Flow Bypass valves are supplied with hydraulic, electric or pneumatic actuators as per the process requirements alongwith complete control systems as an option.