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 offers Shock Alleviators. | Please Phone 910-270-2737 We have people not voicemail | Call toll free UK 08080-567-7423

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.

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See Also: Coup de Bélier | Marteau de l'eau

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.

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.

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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 U.S. Div. Fluid Power Accumulators in the Americas	PulseGuard US Div. Pulsation Dampeners in the Americas	Liquid Dynamics Intl. Data Capture, Analysis, Diagnostic Computer, Modeling, & Software in the Americas
Hydrotrole Ltd. Fluid Power Accumulators in Europe	PulseGuard US Div. Pulsation Dampeners in Europe	Liquid Dynamics Intl. Data Capture, Analysis, Diagnostic Computer, Modeling, & Software in Europe
Flow-Guard Flow Fuses	Quick overview, A Small PulseGuard site in the Americas	Quick overview, A Small PulseGuard site in Europe

Archived version of ShockGuard

Return to top of page 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. www.Shock-Guard.com / www.ShockGuard.co.uk Other Important Sites to Help You