butt welding power station globe valve

Overview Power plant boiler or industrial boiler is definitely installed with vacuum exhaust steam valve,which is used to exhaust steam and adjust boiler steam temperature within specified range in time of boiler startup.During normal operation,when the pressure and temperature of boiler increase and boiler safety door is not required to be actuated,vacuum exhaust steam valve can be used to reduce pressure and temperature Thus it can be seen that the operating condition of