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Surge Causes Highway Shutdown

Surge Causes Highway Shutdown

Problem: A major producer of water treatment chemicals accessed their local water supply through a 3" PVC pipe with quick closing valves. When the desired quantity had been measured and the valve shut, a water hammer effect with pressure spikes that exceeded the PVC pipe's burst strength was created. The PVC repeatedly broke, causing the entire plant to be shut down for repair. In addition, since pipe failure occurred under a nearby highway, it also had to be closed.

Check Valve Backflow Water Hammer

Check Valve Backflow Water Hammer

Problem: The Park Royal Hotel in Sydney has two large Flygt submersible pumps which operate automatically to pump out storm water and seepage. The pumps are installed in a sump in the basement car park. When the pumps shut down due to low level in the sump, the backflow of the storm water still in the discharge line returned against the check valve at the pump's discharge. This caused severe pipe vibration and water hammer. The force was so great that the pipe, mounted on the basement ceiling with brackets and Ramset dyna-bolts, was dislodged, landing on expensive motor vehicles.

APPLICATIONS
View All Modular, Skid Mounted Chemical Dosing System Pulsation in Dual Hose Pump Application Pulsation Control in Hi-Temp Coffee Extraction Towers Water Hammer in Wash-Water Header Diesel Transfer Pump Transport of Copper Bearing Solution in Remote Mining Spill Prevention in Contact Lens Factory Label Adhesive Application Chronic Pulsation Issues at Power Plant in Central PA Chemical Process Leak in Boston Achieving Even Application of Screen Coating Reliable Rosin Size Dosing Chemical Compatibility Diaphragm Failure Pump Inlet Cavitation in Power Gen Facility Deionized Water Dosing in R&D Lab Pulsation in Sulfuric Acid Feed Deep Well Injection Aeration and Pulsation of Cleaning Products Filling Hose Failure due to Pulsation Filter Screen Damage from Pulsation Clogged Filters Causing False Gauge Readings Chemical Feed Injection Pulsation Low-Viscosity Injection Pulsation Oil and Gas Long Suction Vibration Diaphragm Pump Failures in Soup Can Manufacturing Diaphragm Failure Causes Repeated Spills in Paint Manufacturing Chemical Manufacturing Excessive Inlet Pressure Reciprocating Pump Pulsation in Power Plant Chemical Injection Pump Vibration Steel Manufacturing Descaling Pulsation Effect of Improper Dampener Application AODD Pump Pulled from Concrete Submarine Constrained Piping Acceleration Head Wastewater Transfer Pulsation Hazardous Waste AODD Containment Failure Paint Manufacturing Abrasive Slurry Diaphragm Failure Decontamination Facility Spray Pulsation Poultry Processing Diaphragm Pump Vibration Pharmaceutical Pump-Induced Pipe Vibration Aerospace Pump-Induced Pulsation Wastewater Sludge Transfer Pump Pulsation Wastewater Sludge Pump Pulsation Bottling Line Water Hammer Tool Manufacturing Manifold Startup Shock Commercial Restroom Flush Water Hammer Resin Plant Drum Filling Water Hammer Pharmaceutical Valve-Induced Water Hammer Hydraulic Transients in Pump Station Surge Causes Highway Shutdown Check Valve Backflow Water Hammer