ShockGuard
ShockGuard Surge Alleviators
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 shock alleviators. | 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

SHOCK, SURGE and WATER HAMMER
PIPELINE SHOCK PREVENTION

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.

OTHER HELPFUL ASSOCIATED SPECIALISTS

Floatolator, thermal, pressure compensation, cross sectional viewJumboFlex, prevent pump start-up surge, cross sectional  cutsheetsmooth your start-up surge, water-hammer  with ShockGuard's alleviatorsLiquibello, thermal, pressure compensator cross sectional viewSurgeGuard, water hammer  from fast valve closure alleviator

SHOCKGUARD - The Water-Hammer and Pipeline
Shock and Surge Prevention Equipment Suppliers.

Shock waves are created in a pipe full of liquid when either a valve is closed too quickly, forcing the liquid column to stop moving more quickly than it wants to, or when a pump is started up too quickly, forcing the liquid column to start moving more quickly than it wants to. In either situation, the shock wave travels up and down the pipe through the liquid, banging against each end of the pipe.

Your own water hammer. Try this at home! This banging can be heard as water hammer. Try it at home - turn on you tap, then turn it off very quickly. You should hear a bang, and maybe even several. If you turn the tap off more slowly, it should stay quite, as the liquid in the pipes slows down more gradually.

In industry, the pipes can be very large, and water hammer may not just be heard as a bang - it can cause a great deal of damage, even rupturing pipes. ShockGuard can supply a range of hardware to prevent these shocks, and a complete software-based water-hammer analysis from it's partner company, Liquid Dynamics International, to recommend system modifications which remove the shock.


"off the shelf" inventory, download PulseGuard catalog
Note: Not a direct download button

Surge Alleviators - Pipeline Shock Prevention
The Pipeline Shock Prevention People
STOP Pump startup surge, Valve closure shock, and Shutdown back-flow hammer
Call Toll Free 1-888-326-7377, UK Europe -- 44(0)161-480-9625, or Contact Us Online.

About ShockGuard People
History and Credentials of ShockGuard

Other Associations

Hydrotrole Hydraulic Accumulators
Hydrotrole U.S. Div.
Fluid Power Hydraulic Accumulators
in the Americas

PulseGuard Pulsation Dampeners
PulseGuard Inc.
Pressure Pulsation Dampeners
in the Americas

LDi Analysis, Diagnostics, and Software
Liquid Dynamics
Intl Inc.

Data Capture, Analysis, Diagnostic Computer, Modeling, & Software
in the Americas
Hydrotrole Ltd.
Fluid Power Hydraulic Accumulators
in Europe

PulseGuard Ltd.
Pressure Pulsation Dampers
in Europe

Liquid Dynamics
Intl Ltd.

Data Capture, Analysis, Diagnostic Computer, Modeling, & Software
in Europe
Flow-Guard Flow Fuses and Breather Bags
Flow-Guard
Flow Fuses and Breather Bags
   

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.

Water hammer in pipes is most often caused by valves and stopped by alleviators which allow flow velocity deceleration over more time, so stopping the Pressure from pumps impairing the safety by removing high pressure spikes followed by a low pressure swing. By allowing the flow velocity to be reduced progressively when valves are slammed closed, arresters prevent water hammer in pipes, and when pumps start fast they are stopped from making high and low pressure surges; both applications increase safety.

www.Shock-Guard.com / www.ShockGuard.co.uk

Other Important Sites to Help You



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