Maintenance-free pulsation dampening Resonators

Product catalog summary

Introduction
Resonators are maintenance-free devices used for pulsation damping in high-pressure plunger pumps. Unlike hydro pneumatic dampers, resonators do not have moving parts or require gas filling, making them suitable for a wide range of pressures and temperatures, especially with aggressive fluids.

Specifications and Performance
Resonators effectively reduce pressure pulsations by partially reflecting pressure waves. They perform well across various pressures and pump speeds, and are particularly efficient at low and high temperatures. The document provides a comparison of pressure variations with and without resonator damping, highlighting their effectiveness.

Comparison of Pulsation Damper Designs
The document compares different pulsation damper designs, including bladder accumulators, diaphragm accumulators, air bottles, and single chamber resonators. Key characteristics such as wear and tear, servicing needs, suitability for high temperatures, and performance at varying pressures and pump speeds are discussed.

Design Considerations
The choice between cylindrical and spherical resonators is typically based on manufacturing capabilities and site-specific requirements. Both designs function similarly in terms of pulsation damping.

Installation Recommendations
For optimal performance, resonators should be installed on the discharge side of the plunger pump, with no shut-off or control valves between the pump and resonator. The distance between the pump and resonator should be minimized, and pipe bends should have a minimum radius of five times the pipe diameter.

Testing and Compliance
Resonators must comply with local rules based on pressure, volume, temperature, and liquid type. Testing and inspection can be certified accordingly.

Contact Information
URACA GmbH & Co. KG provides contact details for further inquiries.

Catalog excerpts

Maintenance-free pulsation dampening Resonators 

Open the catalog to page 1

Resonators for the pulsation damping on plunger pumps Pressure pulsations on high pressure pumps often have to be reduced to meet the requirements of the installation. Resonators, i.e. pulsation dampers, are most suitable for this purpose. Contrary to hydro pneumatic dampers, resonators are maintenance-free as they do not have any moving parts, bladders or diaphragms nor require any gas filling. The pulsation damping is due to the partial reflection of the pressure waves in the resonator. Resonators give excellent damping results within a wide range of pressures and pump speeds. Their functional...

Open the catalog to page 2

Maintenance-free pulsation dampening Resonators-3

Choice of design The choice of design (cylindrical or spherical) has little influence on the function of the resonator. Normally the choice is made on the basis of the manufacturing facilities for the resonator and also any site restrictions and requirements of the pump installation. L ges Characteristics of various pulsation damper designs Design of the resonator Bladder accumulator Diaphragm accumulator Single chamber resonators Cylindrical Regular checks on precharge pressure necessary Medium having high temperatures (>120°C) Variable operating pressure Precharge pressure must be adjusted...

Open the catalog to page 3

Maintenance-free pulsation dampening Resonators-4

Recommendations regarding the installation of resonators Installation on discharge side of plunger pump: Do not install any shut-off and control valves between pump and resonator. Distance between pump and resonator has to be as short as possible. Min. radius of 90° pipe bends not to be below 5 times of the pipe diameter. Resonator Pump Possible ways of installation: Vent Resonator Pump URACA GmbH & Co. KG ■ Sirchinger Str. 15 ■ 72574 Bad Urach ■ Germany Phone +49 (0) 7125/133-0 ■ Fax +49 (0) 7125/133-202 ■ [email protected] ■ www.uraca.com Design may be subject to modification. Dimensions, weights,...

Open the catalog to page 4