Applications

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Hazardous Waste

Hazardous Waste

Problem: A major chemical company in Michigan uses air operated double diaphragm (AODD) pumps for unloading hazardous waste, including many different chemicals and products (e.g., acids, solvents, methyl chlorides, etc.). Each of the AODD pumps are 2 inch stainless stee; with PTFE internals, and are pumping at a flow rate of 80 to 100 gpm at 30 psi discharge pressure. The company has experienced pump diaphragm failure due to the elastomer material wearing out or damage from metal particles. When a diaphragm fails, the product goes into the air system and then out through the pump’s air exhaust. Because the product is hazardous, there is zero tolerance for spills. If a spill occurs, HAZMAT is called and the cost of cleanup can range from $20,000 to $100,000 depending on severity.

Spill Prevention in Contact Lens Factory

Spill Prevention in Contact Lens Factory

Problem: A highly sterile production facility manufacturing liquid materials for contact lens production experienced a critical failure of an air operated diaphragm pump. The pump’s diaphragm ruptured, causing the expensive chemical product to spill across the floor. Beyond the immediate material loss, the incident created contamination risks in a controlled cleanroom environment and exposed the process to costly downtime.

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.

Decontamination

Decontamination

Problem: A decontamination facility pumped acids and water through a series of 15" spray nozzles to rinse radiation from contaminated metals. However, the pulsating action of their reciprocating pumps caused uneven spray into the rinse tanks, and the metals were not rinsed completely.

Chicken Plant

Chicken Plant

Problem: Steggles Chickens of Newcastle uses a 4" electric diaphragm pump to transfer chicken waste from a wash-down sump to a centrifuge. The diaphragm pump is suited to the application because of its ability to handle large solids such as chicken heads and viscous sludge consisting of congealed chicken blood. The pump's reciprocating action created vibration in the piping system which caused damage to brackets, fittings and valves.

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.