COMEVAL VALVE SYSTEMS provides a complete range of specialist product equipment for water-tube and fire-tube recovery boilers, whatever the fuel used (biomass, coal, fuel oil, gas, etc.). Below you will find more information. Contact our specialists for your upcoming projects.
WATER-TUBE HEAT RECOVERY GENERATORS
A heat recovery steam generator (HRSG) is an exchanger designed to recover heat from the exhaust gas flow. It produces steam which can be used in processes (cogeneration) or fed to a steam turbine (combined cycle). The generator consists of four basic components: the economiser, evaporator, superheater and water preheater. These different components are installed together to meet the operating requirements. The generators can be supplied in modular or compact form, to make transport from the manufacturing plants easier. Once installed, the complete generating unit is designed to deliver high outputs of 20 MW.Go to our products section for more specific details about the product you are looking for.COMEVAL VALVE SYSTEMS provides a complete range of specialist product equipment for recovery boilers. These are high quality products that ensure reliability and safety, for example:
#Safety valves – full nozzle to ASME Sec. VIII and NB – U Stamp
#Desuperheaters for the superheater outlet
#Control valves for high, medium and low pressure drums and economisers
#Turbine bypass valves
#Level indicators for high and low pressure drums, local and remote; reflex and electronic.
#Pump recirculation valves
#Triple eccentric butterfly valves for high temperature service
#Vent silencers for valve outlets and engine and stack exhausts.
FIRE-TUBE BOILERS
These are boilers designed for hot gases to pass through tubes arranged inside a water tank. The heat from these gases is transferred through the tube walls by thermal conduction and heats the water, ultimately creating steam. The tank is usually cylindrical, which is the most suitable shape for a pressure vessel, and it can be arranged vertically or horizontally.COMEVAL VALVE SYSTEMS provides a complete programme of specialist products for fire-tube boiler rooms.
These are high quality products that ensure reliability and safety, for example:
#Safety valves (EN TUV TRD421 PN 16-40 semi nozzle, with open and closed bonnets).
#Control valves for feedwater and deaerators
#Bottom blowdown valves
#TDS control valves
#Manual valves for boiler outlet and distribution
#Level indicators and automatic level controlGo to our products section for more specific details about the product you are looking for.