Assertion: boiler | /r/CapableOf | operate at pressure
Facets:
value: above 1,000 pounds per square inch
type: OTHER
Source sentences:
text: Sulphite is less desirable in boilers operating at pressures above 1,000 pounds per square inch (6,900 kPa); because sulfates formed by combination with oxygen may form sulfate scale or decompose into corrosive sulfur dioxide or hydrogen sulfide at elevated temperatures.
text: Boilers operating at pressures less than 200 pounds per square inch (1,400 kPa) may use unsoftened feedwater with the addition of sodium carbonate or sodium hydroxide to maintain alkaline conditions to precipitate calcium carbonate, magnesium hydroxide and magnesium silicate.