<ul class="steps">
 	<li>3 plungers directly coupled to a crank shaft</li>
 	<li>Pressure and flow rate are determined by how fast the motor turns the crankshaft</li>
 	<li>Crank shaft cycles at up to 1750 rpm</li>
 	<li>Minimal pressure spikes (no attenuator needed)</li>
 	<li>Generally found in lower pressure applications</li>
 	<li>Cutting water is always running while the pump is on. The water either goes through the cutting head, or, when not cutting, through the dump valve into the waterjet tank.</li>
</ul>
<h3>Disadvantages</h3>
<ul class="steps">
 	<li>Complex - Many moving parts</li>
 	<li>Time consuming to maintain</li>
 	<li>Able to support additional cutting heads ONLY when the heads are cutting the same part (Pump is always pressurized)</li>
 	<li>Expensive</li>
</ul>
<h3>Advantages</h3>
<ul class="steps">
 	<li>High efficiency</li>
 	<li>Low pressure fluctuations</li>
 	<li>No attenuator</li>
</ul>