Water Hammer

Protects equipment from pressure spikes

Engineering GREAT Solutions

Water hammer protection as standard IMI Buschjost leads the industry with a wide range of indirect acting solenoid valves

Features

Water hammer, also called fluid hammer or hydraulic shock, creates a pressure spike in a pipe system that can damage seals, gauges, pipes and fittings – virtually anything upstream. IMI Buschjost in partnership with GCE Fluid Power addresses the problem of water hammer at the source – the valve.

Our superior solenoid valves are proven to reduce pressure spikes by more than 80%, compared to the competition.

> Brass and Stainless steel

> 2/2-Way valves - Normally closed and open

> Reduce system costs by eliminating: – Pressure regulators – Shock absorbers – Check valves – Accumulators > Helps optimise total cost of ownership (TCO)

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> International approvals available

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> Compact design Time (ms)

> Pressure range: 0.1 to 16 bar (232 psi)

IMI Buschjost

Competitor B

> 1/4 ... 2 (ISO G/NPT) port size options

Competitor A

Competitor C

> Many technical options available > Sealed core tube

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> Choice of seal materials available

> Patented click-on® coil Benefits of IMI Buschjost valves

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We’ve all heard it – that bang in the pipes when we turn off the suddenly. Sometimes multiple bangs shudder through the pipe back and forth. The same phenomenon can happen in large c fluid systems.

Water hammer, also called fluid hammer or hydraulic shock, is a wave or surge caused when a fluid in motion is forced to stop suddenly. In process applications this happens when a fast-acting valve closes a pipe while the water upstream is still moving. The water hits the closed valve and bounces back, creating a pressure spike in the system upstream.

How bad is it?

Pressure spikes have been measured as high as 15 times higher than the normal water pressure in the pipeline. This exceeds typical UL rating safety factors and can damage equipment not designed to withstand pressures that high.

Water hammer is a problem for applications using water from public utilities that usually comes in with a pressure rating between 70 and100 psi. Applications range anywhere from small dental offices to large manufacturing facilities. Water hammer is also a problem in mobile equipment that carries water, like concrete mixers or street sweepers. Industrial processes that use pressurized water can also be seriously impacted by water hammer.

Rapid Close Reduced Water Hammer Rapid closing of the valve is required for safe and effective operations in systems that typically use these 2-way valves. The IMI Buschjost valves have a proprietary internal design that lets them close smoothly and gently, reducing pressure spikes while still maintaining closing speed. The result is the valves close in a quarter of a second but with just a fraction (one-fifth) of the pressure surge typical of other similar valves.

The Click-on solenoid system is available for all standard voltages and offers users a low maintenance solution as the solenoids are quick and easy to replace without the need for any tools. ÂŽ

GCE Fluid Power Limited Atlas Industrial Estate South Works, Brookvale Road Birmingham, B6 7EX Tel: 0121 3565727 sales@gcefluidpower.co.uk www.gcefluidpower.co.uk

Repeated over-pressurization and vibration can cause damage ranging from premature wear to catastrophic failure of pipes, tubing, fittings, regulators, pumps, floats, and anything else upstream from the closure Successfulgauges in the market for more than point, as well as the unpleasant noise it creates.

80 years, system designers have been selecting these solenoids for years due to their excellent performance attributes and robust design.

Our strengths

> In-depth technical knowledge > Large stock holding > Personal service > Fast, reliable and efficient service

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