TOTAL VALVE SOLUTIONS
For many years, break-pressure tanks were considered the only reliable way to create a complete pressure break in a pipeline. Advances in valve technology now offer alternatives. The Ratio Pressure Reducing Valve (RPRV) is one. Each valve uses a piston designed to deliver a precise pressure-drop ratio. Compared with pilot-operated pressure-reducing valves, the RPRV has…
DetailsWedge gate valves (a.k.a gate valves) have a metal wedge which is forced against metal seats in the valve body to create a seal. These valves are robust and usually have a long service life. But, they suffer some disadvantages:- The resilient seated gate valve (RSV) was designed to overcome these problems. The gate has…
DetailsMost people imagine massive dams with long expensive approval processes when if they think about generating electricity from water. But, there is energy available in every pipeline. The kinetic energy from the flowing water can be converted into electricity. We’ve developed two water-powered generators to harness some of this energy. This is particularly useful for…
DetailsOne of the most common applications for self-actuated control valves is reservoir level control. At first glance it looks simple – exactly like a toilet valve. Except that toilet valves aren’t likely to fail from cavitation. I’ve written about combatting cavitation by controlling flow rates through level control valves. The article is here if you’re…
DetailsA pipeline needs one or more scour valves so it can be drained – usually for maintenance or repair. When a scour valve is opened, water is expelled from the pipe because of the difference between the pipeline pressure and atmospheric pressure. This can cause a very high flow velocity through the valve. Consider for…
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