pulsation dampener diagram

Benefits to Installing a Pulsation Dampener

By Tencarva Machinery Co., May 24, 2017

Positive Displacement (diaphragm) pumps create pressure pulsations (spikes) and hydraulic shock due to their stroking action characteristics.  These pulsations potentially can harm, damage or shorten the life of system components.  A properly set-up and sized pulsation dampener can remove up to 99% hydraulic shock, noise and vibration. Pulsation dampeners also create continuous flow enhancing all-around performance in industrial and chemical dosing applications.

How do they work?

The pulsation dampener creates a low pressure area in the system large enough to absorb pressure spikes.  The pulsation dampeners membrane made of chemically resistant materials, e.g., Teflon®, Viton®, etc. compressed air behind the membrane causes it to flex when exposed

to a pressure spike, dampening (cushioning) the pressure spike. Properly pressurizing the pulsation dampener will maximize its effectiveness. The initial “charge” should be 80% of the system’s operating pressure. Air is then added or released via a Schrader valve until system vibration is eliminated.

For the complete write up and installation instructions:

Pulsation Dampener Benefits