A28-0250-004 - Pneumatic automatic pulsation dampeners Model Damp 250 1"1/2 250 l/minThe active pulsation dampeneris the most efficient way to remove pressure variations on the discharge of the pump. Meclubepulsation dampener works actively with compressed air and a diaphragm. automatically. setting the correct pressure to minimize the pulsations. Pulsations dampeners require minimum maintenance and are. subject to the requirements of the application. available in the same housing and diaphragm materials as the pump. "