Suction dampener is a very effective aid for improving suction performance and eliminating fluid pulsations in the suction line, which results in a smoother flow in the discharge line.
The mounting for KB-75 pulsation dampener (1) is a flange with R-39 seal washer. Before installing dampener, thoroughly clean ring groove and ring, and after setting dampener into place, tighten the nut (8) with 950-1265N.m (700-935ft.lbs) torque. Tighten nuts in a criss-cross order.
The discharge pulsation dampener is only allowed to charge nitrogen or air. No inflammable and explosive gases are allowed such as oxygen, hydrogen etc.
When stopping the pump check if the pre-charging pressure of discharge pulsation dampener meets the operational requirements.