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Submarine Constrained Piping Acceleration Head

Submarine Constrained Piping Acceleration Head

Problem: The Australian Submarine Corp (ASC) uses a 32mm peristaltic hose pump in Collins Class Submarines to transfer oily contaminated seawater from the bilge to the waste tank. The peristaltic hose pump is perfectly suited to the duty because the pump is capable of self-priming, dry running indefinitely, and can handle sludge-type materials that could be encountered in the bilge. The overall physical size of the pump coupled with the cramped internal confines of the submarine resulted in the suction and discharge pipe work being considerably twisted; incorporating many bends and valves. The pulsed flow action caused the acceleration head of the pump to sharply increase and markedly decrease hose life to the extent that offshore trials were lasting less than a week.

Wastewater Transfer Pulsation

Wastewater Transfer Pulsation

Problem: Vishay Measurements Group uses a Wilden 1" Air Operated Double Diaphragm pump to pull the plants processed waste water out of a pit and pump it over to the waste water plant to be processed. The reciprocating action of the pump caused pulsation in the PVC discharge pipe which caused the system to vibrate. The continuous shaking of the PVC pipe caused joints to break apart and stress caused cracking in the discharge pipe.

Classic Pulsation Dampening in Peristaltic Hose System

Classic Pulsation Dampening in Peristaltic Hose System

Problem: A municipal water treatment facility in California was using peristaltic pumps to dose polymer. Smooth, steady flow is critical for accurate chemical metering.

However, due to the pulsation inherent in peristaltic/hose pumps, the system experienced significant pressure spikes ranging from 0 to 70 PSI on each cycle. This caused highly erratic flow behavior, making the polymer difficult to control and dose accurately.

The inconsistent flow negatively impacted process performance and made precise chemical dosing unreliable.

APPLICATIONS
View All Modular, Skid Mounted Chemical Dosing System 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 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 Classic Pulsation Dampening in Peristaltic Hose System Check Valve Backflow Water Hammer