Peristaltic Pump Pulsation Dampeners

Smooth Out Flow Rate & Reduce Hydraulic Shock

Peristaltic pump dampeners are designed to reduce vibration and water-hammer caused by hose compression. Although the rollers or shoes do not typically compress the hose 100 %, enough fluid is trapped between the pinch points to create a surge in flow. The magnitude of the pulsation depends primarily on the discharge restriction (reflected as discharge pressure).

A peristaltic pulsation dampener is a pressure vessel containing a flexible internal bladder. The bladder is normally pre-charged with compressed air or nitrogen; charge pressure can be adjusted and monitored. The only wetted component is the bladder, which is usually supplied in the same elastomer as the pump hose (natural rubber, EPDM, oil-rated nitrile or Hypalon).

Compatibility

These dampeners work with any brand of peristaltic hose pump. To select the correct model, cross-reference the hose inside diameter on our replacement peristaltic pump hose page with the beginning of the universal part number, then use the chart below — or simply contact us for assistance.

Pulsation Dampener Selection Chart

All process connections are 316 stainless steel.

Selecting the proper dampener size ensures effective reduction of pulsation, vibration and hydraulic shock while maintaining the seal-less integrity of the overall pumping system.