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Æ 6.05 If Line Pressure is Too High (or Too Low)

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Espresso machine pumps should be connected to a water supply with a steady incoming pressure between 1.5 and 4 bars. The pressure in the water supply is called the ‘line pressure’. If the line pressure is too high, then a pressure regulating valve (PRV) should be fitted to reduce the incoming pressure to meet the […]

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