What Is the Difference Between a Mechanical Pump and
2017-11-29u2002·u2002Mechanical pumps aren't built to work at the type of pressures electric pumps can work at—with mechanical pumps pushing an average operating pressure of 5 or 6 psi and electric pumps handling operational pressures of between 30 and 40 psi. Mechanical pumps use a moving diaphragm that's operated by a crankshaft driven by a motor.
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