Boiler safety pneumatic valve installation requirements (3)

security pneumatic valve installation shall meet the following requirements: ( L） Evaporation is greater than the rating. T/h boiler, installation of at least two safety pneumatic valve: less than or equal to zero. Tons of evaporation/h boiler, in the name of the pneumatic valve to install at least one security. Can be divided into the economizer exit points, steam superheater safety pneumatic valve socket must be installed. （ ） Security pneumatic valve should be installed vertically in the pot, the top of the header. In safety or head shall be equipped with pneumatic valve and drum into the steam pipe and the export of pneumatic valve. （ ） Prevent the hammer pneumatic valve lever security should be their own mobile devices and limit lever deviant lead frame, spring loaded safety pneumatic valve should strengthen leisure reversing handle, adjusting screw, in order to prevent the equipment. （ ） For the steam pressure is less than or equal to the rated. MPa boiler safety pneumatic valve throat diameter should not less than the mm: the boiler steam pressure is greater than the rating. MPa is that unsafe pneumatic valve throat diameter less than the mm. （ ） Security pneumatic valve and boiler tube, shall not exceed the safe import cross-sectional area smaller than cross-sectional area of pneumatic valve. If several pneumatic valve is installed with drum directly connected to the root of the short tube rotary pump, the cross-sectional area of short pipe should not step on all of the vent area. Times. （ ） Security pneumatic valve should be installed exhaust pipe, the exhaust pipe should be a safe place, and there is plenty of sectional area, to ensure that the exhaust gas flow. Security in hand valve exhaust pipe should have received in the exhaust pipe of the security posture of the drainage pipe, tube drainage, don't let the noise of pneumatic valve installation. This site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve pneumatic butterfly valve pneumatic butterfly valve pneumatic actuator pneumatic actuators