What type of electric valve should be used for the boiler blowdown pipe?
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An electric valve is needed for the continuous blowdown pipeline of the steam boiler. I’m not sure which type of valve would be suitable – one with DN40 and PN1.6MPa, or one with DN50 and PN2.5MPa. The valve must be able to withstand temperatures of 300 degrees. Since I don’t have any relevant information available, please help me identify the appropriate valve model. Thank you! !
There is no need to install an electric valve for the boiler drain valve; a dual-valve setup is sufficient, with a globe valve working well in this case. DN40 and DN50 are both suitable; the pressure rating should be high enough – 2.5 MPa is not sufficient, and valves with a pressure rating of at least 6.4 MPa are required.
Boiler blowdown requires rapid discharge, so an electric ball valve is preferable