The Pipeline Shock Prevention People
Pump Start-up surge, Valve closure shock, Pump shutdown back flow bang.
Large vessels for high pressures with matching bladders, diaphragms, gas bags, and bellows, for over a third of a century.

ShockGuard Ltd. offer surge protectors. | Please phone USA 910-270-2737
We have people not voicemail. | Call toll free 1-888-DAMPERS

Fluid Flow Control Animations
Fluid Flow Control Animations

Hydra Shock Surge Protectors Catalog

E-mail for active CD or Hard Copy of Catalog GO TOforward arrow
ShockGuard's JumboFlex, prevent pump start up surge

Front Cover- For the Americas
Front Cover - For Asia & Europe - Smoothing, Pump start-up surge, Valve closure shock, Pump shutdown hammer. We make big and high pressure ones.

Centrifugal pump cross sectional  cut sheet symbol
Page 2, Pipeline Shock, General schematic with all surge protectors. Pressure over time - problems that we solve. Start-up Surge, Resonant pump shaft deflection, Valve closure shock.
Liquibello, thermal, pressure compensator cross sectional view
Page 3, Pressure Compensation for Volume expansion or Contraction due to high and low temperature. LiquiBello or Flexorber LP. A quick estimate of the volume of compensator needed. Also used for shock and surge alleviation in high and low temperature systems.

JumboFlex, prevent pump start-up surge, cross sectional  cutsheet
Page 4, Prevent Start-up Surge with JumboFlex. Use Liquid Dynamics Intl.'s ShockView - to analyze your proposed piping system.
The liquid is in the shell, predominantly used for non-corrosive systems.
SurgeGuard, water hammer  from fast valve closure alleviator
Page 5, Prevent Water Hammer from fast Valve closure with SurgeGuard. Schematic with a centrifugal pump, with problem and solutions & understanding valve closure time.
The liquid is in the bladder predominantly used with corrosive system liquids.
Waveguard, resonant pump shaft defelction pulsation
Page 6, Prevent system frequency response induced vibration from resonant pump shaft deflection pulsation. How WaveGuards are the answer to any resonance problems.
Liquid Dynamics Intl. services.
Understanding frequencies.
Floatolator, start-up surge alleviator or water-hammer preventor
Page 7, Start-up surge alleviation or Water hammer prevention from valve slam & systems that are incompatible with, or too large for, gas bags and liquid bladders. An Explanation. The use of a FloatoLator Reading an "LDi"" ShockView plot. Explanations on how Shock & Surge protection works.
ShockGuard logo, Shock prevention for pipeline systems
Page 8, Registrations, Patents of ShockGuard. Contact information for Asia, Europe and the Americas.
pressure spikes and surges, problems and solutionsup surge

Page 9, Defines which type of large or high pressure surge protector to use, and which type of ShockGuard large high pressure pump start-up surge alleviator to use.

Dimensional drawings of all shock alleviators, contact ShockGuard

Page 10, Dimensional Drawings of your four main shock alleviators - LiquiBello, FloatoLator, SurgeGuard, & JumboFlex. Up-close internal, vessel body and closure drawings.

Drawings of the four main types of shock alleviators and surge protectors for the dimensions to be entered into, that are found on the tabulation of standard sizes and pressure pages.


ShockGuard Shock / Surge Alleviators and Accumulators
Water Hammer and Pipeline Shock / Surge Prevention Equipment
STOP Pump start up surge, Valve closure shock, and Shut down back flow water hammer.
Call Toll Free 1-888-326-7377, UK Europe -- 44(0)161-480-9625, or Contact Us Online.

Understanding How it Works
Shock alleviators and shock accumulators do not alleviate shock, nor do surge alleviators and surge accumulators alleviate surge. SurgeGuard, JumboFlex, and Floatolator all work in the same way. They provide a soft place, so that the pump does not have to instantly accelerate all the liquid in the pipe system when it starts. Similarly, they provide a place into which flow can continue, for a time, against increasing resistance, when a a valve has been slammed. In both cases, because time has been increased, peak pressure generation is decreased. In short, they all prevent the peak pressure from being generated. /

Other Important Sites to Help You

Fluid Flow Control The Fluid Flow Control Source Pumps Accumulators Filters Dampers Heat Exchangers Valves Mixers P.I. / Pressure Indicators Controls Meters Vessels