MLPD12 | Pulsation Dampener, Smoothing Flow

MLPD12 pulsation dampener for smoother high-pressure flow

• The AR MLPD12 is a compact pulsation dampener with a
  1/2-inch port engineered by Annovi Reverberi to stabilize pressure,
  reduce vibration, and smooth fluid flow in high-performance pump systems.
• Designed to absorb pressure spikes and flow fluctuations, it improves overall
  system stability and helps maintain consistent performance under changing load and
  operating conditions.
• Ideal for industrial cleaning, pressure washing, agricultural spraying, and
  general fluid-handling systems where reciprocating pumps naturally create
  pulsation in the line.
• By minimizing hydraulic shock, the MLPD12 reduces noise, vibration, and mechanical
  fatigue throughout the system.

How It Works

Internal gas charge for pulsation absorption and pressure equalization

• The MLPD12 dampener uses an internal air or gas charge that compresses as fluid
  pulses enter, absorbing pressure spikes and evening out flow.
• This compression-and-rebound action equalizes pressure in the line,
  preventing rapid oscillations that can cause rattling hoses, noisy operation, and
  accelerated wear on fittings and gauges.
• The precise internal chamber is engineered to respond automatically to pressure
  fluctuations, acting as a buffer that stabilizes discharge flow.
• Especially effective on piston and plunger pump systems, where it
  smooths the characteristic pulsation produced by reciprocating motion.

Construction & Durability

Robust materials for long service in demanding environments

• Constructed from high-quality, corrosion-resistant materials, the MLPD12
  withstands high operating pressures and exposure to water, detergents, and mild
  chemicals.
• The compact, cylindrical housing is designed for mechanical stability under constant
  vibration and thermal cycling, maintaining consistent response characteristics over
  time.
• Internal components are built to resist fatigue, ensuring long-lasting reliability
  in both indoor facilities and outdoor mobile rigs.
• The sealed body minimizes contamination and helps keep the internal gas charge
  protected from environmental factors.

Connection & Integration

1/2-inch threaded port for easy system installation

• Features a 1/2-inch threaded port that provides a secure, leak-resistant
  connection to standard pump outlets, manifolds, or in-line fittings.
• Compatible with common plumbing configurations used in pressure washers, sprayers,
  and industrial pump skids.
• Small footprint allows the dampener to be installed close to the pump outlet
  or near pressure-sensitive components for optimal damping effect.
• MLPD12 can be mounted in either vertical or horizontal orientation, giving
  installers flexibility when space is limited.

System Performance Benefits

Protection, stability, and smoother output

• Reduces pressure pulsation, hydraulic shock, and water hammer, helping to
  prevent cavitation and protecting the pump from damaging surges.
• Extends the life of pumps, hoses, seals, gauges, and fittings by
  lowering vibration-induced stress and fatigue.
• Produces smoother discharge flow and more stable pressure at the nozzle
  or spray gun, which improves cleaning performance and operator comfort.
• Contributes to quieter system operation, reducing noise levels caused by
  rapid pressure oscillations and mechanical chatter.
• Helps maintain consistent output during startup, steady-state, and shutdown
  cycles, improving control and repeatability in process applications.

Adjustment & Maintenance

Fine-tuning and low service requirements

• The MLPD12 includes an internal precharge that can be adjusted to match
  system pressure requirements, allowing users to tune damping performance for
  specific applications.
• Routine service typically consists of periodic pressure checks on the gas
  charge and inspection of connections to ensure leak-free operation.
• Sealed construction and quality materials keep maintenance needs low, reducing
  downtime and service costs over the life of the system.
• Standardized connection size and modular design allow the unit to be easily
  replaced or serviced without extensive re-plumbing.

Typical Applications

Where the AR MLPD12 excels

• High-pressure washing systems that require smooth, consistent nozzle
  pressure for effective cleaning and reduced operator fatigue.
• Agricultural sprayers where stable flow improves spray pattern and
  chemical application uniformity.
• Industrial pumping and fluid-handling systems with reciprocating pumps
  that naturally produce pulsation in the discharge line.
• Process and utility water circuits where vibration and pressure spikes
  can damage sensitive downstream equipment.

Why Choose the AR MLPD12

Balanced design for reliability and efficiency

• Engineered to Annovi Reverberi’s strict quality standards for dimensional
  accuracy, repeatable performance, and long-term reliability.
• Provides an effective combination of durability, pressure control, and vibration
  reduction in a compact, easy-to-install package.
• Helps lower total cost of ownership by reducing maintenance, preventing leaks and
  failures, and extending equipment life.
• A proven solution for professionals who need reliable pulsation control in demanding
  high-pressure cleaning and fluid-handling environments.