Steam, feedwater and cooling-water systems place very different demands on industrial Valve. Speciality Valve provides valve for thermal power plants, steam systems, and balance-of-plant installations. Our range is suitable for high temperature shut-off, feed-water control, condensate handling, pump protection, boiler blowdown and pressure relief systems. Power-generation systems commonly use: Pressure Seal Gate Valve – Isolation of high-pressure steam and feedwater Pressure Seal Globe Valve – Shut-off and throttling of high-pressure fluids Control Valve – Steam, Feed Water Control, Pressure and Temperature Control Check Valve – Boiler-feed pump and condensate-system protection Safety Valve – Boiler and pressure-system overpressure protection Butterfly Valve – Cooling-water and circulating-water isolation Ball Valve – Fuel-gas, fuel-oil and auxiliary services Gate Valve – Main-line isolation where unrestricted flow is important Steam Valve need to be able to withstand heating and cooling cycles. Design pressure and temperature Steam velocity Pressure differential Thermal cycling Frequency of start-stop cycles Leakage performance Stem and packing design Seat and trim erosion Actuator thrust or torque Pressure-seal bonnet construction may be selected for certain high-pressure and high-temperature applications. Material selection depends on temperature, pressure and water chemistry. Typical options include: F321 Valve – Suitable for elevated-temperature applications requiring stabilized stainless-steel construction F347 Valve – Used for high-temperature steam and thermal-cycling conditions Inconel Valve – Selected for severe heat, oxidation and high-temperature process service Incoloy Valve – Suitable for elevated-temperature and corrosive environments F317L Valve – Used where improved corrosion resistance is required F44 Valve – Selected for aggressive water chemistry and chloride-containing service Depending on valve type and service, project documentation may reference: ASME B16.34 ASME B31.1 power-piping requirements API 598 inspection and pressure testing IBR requirements for applicable boiler and steam service in India Project-specific leakage and material specifications Boiler steam isolation Main steam Feedwater control Turbine bypass Condensate return Cooling-water isolation Pump protection Boiler blowdown Pressure relief Fuel supply systems Speciality Valve provides power plant Valve for steam, feedwater, condensate, cooling-water and auxiliary systems across new installations, power-plant upgrades and replacement requirements. Valve may be configured in accordance with pressure, temperature, cycling, material considerations and specific project requirements.Valve for Power Generation Industry
Which Valves Are Used in Power Plants?High-Temperature Steam Valve Design
Important considerations include:Power Plant Valve Materials
Boiler and Power Plant Valve Standards
Power Generation Valve Applications
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Power Generation
Valve for Power Generation Projects
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