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Job Stories

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Diaphragm Life

Diaphragm Life

Problem: A manufacturer of metal soup cans located in New Jersey uses (8) 2" air diaphragm pumps to transfer the product which is used to line the cans. The suction of the pump is attached to the bottom of a 35' tall tank. The air operated diaphragm pumps are fitted with expensive PTFE diaphragms. The diaphragms were failing prematurely which resulted in loss of product, excessive downtime, and expensive part replacement. Additionally, leakage was occurring at the pump's clamping bands and the pumps were noisy during operation.

Pharmaceutical Solvent

Pharmaceutical Solvent

Problem: The Boulder, CO Roche Pharmaceutical manufacturing facility uses a 3" air operated double diaphragm pump to transfer methylene chloride from an underground tank to various spots throughout the plant site. The diaphragm pump is ideal for this application because it creates enough vacuum to lift the methylene chloride 12' at an elevation of 5300' above sea level, even when outside temperatures reach 90-100°F. The reciprocating action of the pump causes the discharge pipe and other components in the system to vibrate and shift.

Drum Filling Line

Drum Filling Line

Problem: MeadWestvaco is a resin plant in Charleston, SC. They have a drum filling line that operates with an automatic filling arm. When a drum is filled an automatic valve closes which causes an extreme water hammer effect. All the pipes leading into the system shake so hard they have broken loose from the pipe stringers

Chemical Transfer

Chemical Transfer

Problem: A major U.S. paint manufacturer uses 3” air operated double diaphragm pumps (AODD) in their tank farm to transfer ingredients to their paint blending process area. One of the main ingredients is titanium dioxide (TiO2) which is both high in specific gravity and very abrasive. The 3” AODD pumps sit at the bottom of holding tanks that are 25 feet tall. Pump inlet pressure is high and this combined with the characteristics of the TiO2 acts to shorten normal pump diaphragm life. When an unexpected diaphragm failure occurs, several thousand gallons of TiO2 can be lost because when a pump diaphragm fails, the TiO2 is pulled through the diaphragm on the pump’s suction stroke and then expelled out the air exhaust.

Deep Well Injection

Deep Well Injection

Problem: Hydroplex HP-350 triplex plunger pump (0.75 gpm at 10,000 psi) for high pressure deep well methanol injection in an oil & gas upstream pumping application. On the discharge side of the pump, the amount of methanol the pump is dosing is metered. Without a dampener to control pulsations and smooth out the flow, the installed flow meters will not give accurate readings. Additionally, when using a triplex pump it is important that all three chambers of the pump stay full of fluid with no voids. Any voids or pockets can cause seals to leak, pump vibration and excess pump noise.

Coating Filtration Line

Coating Filtration Line

Problem: A painting operation for a skid manufacturer in North Carolina uses a large quantity of bag filters throughout the paint line to filter rinse water and various coatings and paints. Paints and coatings were clogging the gauges causing the gauges on the bag filters to give false readings. The incorrect gauge readings led to poor filtration, due to infrequent bag changes, and manufactured parts were getting rejected in QC.

View All Dosing Filling Water Hammer Spill Prevention Filter Metering Injecting Pulsation Dampening Spray Coating Transfer Inlet Stabilization
JOB STORIES