Bladder Type Pulsation Dampener

A Bladder Type Pulsation Dampener is a device used in chemical dosing systems and industrial pipelines to smooth out pressure fluctuations and stabilize flow from positive displacement pumps like diaphragm or plunger pumps. It is very common in water treatment, RO plants, chemical processing, and industrial applications. ⚙️💧

🔎 What is a Bladder Type Pulsation Dampener?

A bladder type dampener contains a flexible rubber or elastomer bladder inside a pressure vessel. The bladder separates the liquid from the gas, which acts as a cushion to absorb pressure spikes from pulsating pumps.

When the pump produces a high-pressure pulse, the liquid compresses the bladder.

The gas inside the bladder absorbs the energy, reducing vibration and shock.

During low-pressure periods, the bladder expands, pushing liquid back into the pipeline.

✅ Result: Smooth, nearly continuous flow, protecting the system and improving dosing accuracy.

⚙️ Main Components

Pressure Vessel / Body – Can be made of stainless steel, PP, UPVC, or PTFE

Flexible Bladder – Chemical-resistant elastomer

Gas Chamber – Pre-charged with nitrogen or air

Fluid Inlet/Outlet – Connects to pump or pipeline

Gas Charging Valve – Adjusts pre-charge pressure

Mounting Bracket – Optional, for secure installation

🔄 Working Principle

Pump delivers pulsating liquid flow.

Liquid enters the bladder dampener.

The bladder compresses, absorbing the pulse.

Gas expands to push fluid back during low-pressure cycle.

➡️ The result is a steady, vibration-free flow in the piping system.