The diverter valve switches air flow from the exhaust to the atmosphere when it senses deceleration. The diverter valve uses a manifold vacuum signal to determine deceleration. Most fuel injection systems do not require a diverter valve, since they are able to shut down fuel flow on deceleration.he air management valve or air switching valve, can be used in addition to or in place of a diverter valve. The air management valve is typically used on computerized emission control systems to switch air flow from the exhaust manifold to the catalytic converter or the air cleaner.
1 It would take you 1 hour to milk six cows by hand. 2  However, with a milking machine, you could milk 100 cows in the same time. 3  It takes each cow about 4 to 5 minutes to milk.he farmer has some flexibility when making a schedule of cow milking times. Usually, cows are milked in the early morning and again in the late afternoon. It is possible to milk a cow by hand. However, milking a whole herd of cows twice a day in this manner would take a great deal of time and energy.
1 Holstein cows give more milk than any other dairy breed in the U.S. The average Holstein cow produces around 23,000 pounds of milk, or 2,674 gallons, of milk each lactation. 2  With a standard lactation lasting 305 days, that comes out to 75 pounds, or almost 9 gallons of milk per cow per day.olstein cows produce more pounds of milk than any of the other dairy breeds, with the average Holstein producing around 23,000 pounds of milk, or 2,674 gallons, of milk each lactation, which averages out to about 75 pounds, or almost 9 gallons of milk per cow per day.