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The application of Cast Iron Valves


The application of cast iron valves can be refered as below:


Cast Iron Valves


(1) When the nominal pressure PN is less than or equal to 1.0MPa, the working temperature is 10 to 200℃, the working medium is water, water, steam, air, gas, oil, etc., usually choose the cast iron with brand HT200, HT250, HT300, gray cast iron valve HT350.


(2) When the nominal pressure PN is less than or equal to 2.5MPa, the working temperature is 30 to 300℃, the working medium is water, water, steam, air, gas, oil, etc., usually choose the cast iron with brand KTH300-06, KTH330-08, malleable iron valve KTH350-10.


(3) As for the nominal pressure PN is less than or equal to 4.0MPa, the working temperature is 30 to 350℃, the working medium is water, water, steam, air, gas, oil, etc., usually choose the cast iron with brand QT400-15, QT450-10, ductile iron valve QT500-7.


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