	Applies To
	Product(s):	HAMMER
	Version(s):	08.11.XX.XX and higher
	Area:	Output and Reporting

Problem

How can I determine water deceleration in a pipeline with a check valve?

Solution

First, run the Initial Condition analysis and record the velocity in the pipe downstream of the check valve.

Next, run the transient simulation and open the Transient Results Viewer. Plot a time history graph of flow in the pipe downstream of the check valve and measure the time from when the pump turns off until the flow curve crosses the x-axis (i.e., when flow reaches zero).

The deceleration of the water column would be the velocity divided by the time. This is an average deceleration rate, which is typically what valve manufacturers provide.

How can I find water deceleration in a pipeline with a check valve?

Problem

Solution

See Also