If the distillate temperature is 150°F and the distillate salinity is 0.35 grains per gallon, the three-way solenoid trip valve should direct the distillate to the __________.
• Evaporator/distiller operation on ships and the purpose of a three-way solenoid trip valve • Typical maximum salinity limits for water acceptable as feedwater vs potable vs rejection overboard • Relationship between distillate temperature and where it is normally routed
• Is a salinity of 0.35 grains per gallon considered very pure, marginal, or too salty for sensitive uses like boiler feedwater? • When the salinity is above the set limit, does the trip valve send the water to a storage tank or to a place where it won’t contaminate any tanks? • Does the distillate temperature of 150°F suggest it has just left the distiller and not yet been cooled for certain uses?
• Verify what typical salinity cut-out setting is for directing distillate away from consumption/critical use tanks • Check which of the listed tanks would be most sensitive to low salinity requirements (especially for boiler feedwater) • Confirm what happens to off‑spec distillate on most marine evaporator systems (where is it normally diverted?)
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