THE BUSINESS CASE FOR SAFETY AND SUSTAINABILITY

Manufacturers inherently use process chemicals and are always searching for the best, most efficient ways to handle them. Why? Because better fluid handling ultimately means greater productivity. Now, add the increase in environmental, health, and safety regulations (EHS) to the manufacturers search for a competitive and effective handling solution, and what do you get? As AdTech Ceramics’ EHS co-coordinator David Kuster discovered, you get one of GoatThroat’s unique hand-pressurized precision pumps.

AdTech Ceramics, Inc.  (previously Ixion Ceramics) the Chattanooga, Tennessee-based subsidiary of AdTech Technologies, Inc. is a leading designer and manufacturer of microcircuit packaging for telecommunications, military, aerospace, satellite communications, and other high tech applications. The company manufactures precision-engineered technical ceramics and metals in two buildings totaling over 100,000 square feet. Ceramic materials are prepared as “tape” or “pastes”, while metals are prepared solely as “pastes”. The process of making ceramic tape begins by milling precise amounts of raw materials into homogeneous slurry – a mixture that is principally ceramic powder of controlled particle sizes combined with organic binders and solvents. The slurry is then poured onto a carrier and passed under a blade to produce a uniform coating. Once dried, this material becomes a ceramic-loaded “tape” which is easily handled in rolls or sheets for unfired processing. Metal pastes, prepared the same way, are subsequently used for screen-printing on green ceramic tape to form electronic circuits, while the ceramic paste is used as screen-printed dielectric layers. These electronic circuits can then be layered on each other to form 3-dimensional ceramic packages, which are then fired and plated – thus producing the final part. AdTech’s customers then populate these ceramic packages with electronic components to be used in their final applications.

Observing industry-standard facilities and safety considerations are a key component of AdTech’s fluid management program. The process chemicals are housed in a substantial, environmental containment facility which will hold upwards of 6000 gallons of fluids in the event of a spill or a flood.
With safety in mind and because of the flammable nature of the organic process solvents, AdTech has made it a policy that neither electric motors nor pumps can be used with or near these fluids. Most of the process chemicals and fluids arrive at the plant in 55 gallon containers. Until recently, many of these fluids were dispensed using a gravity fed system. AdTech Ceramics is now using GoatThroat pumps to manage alcohols and assorted cleaning solvents, including Toluene.

The alcohols are used in the production of the liquid ceramic “slip” used to manufacture the ceramic tape. The cleaning solvents are used for various clean-up procedures in the tape casting and screen-printing departments. When handling the fluids and drums, the workers are protected from splashing by aprons, gloves and safety goggles, and safety environmental spill containment pallets are in place in the event that any local containment of spills is required.

The hand operated GoatThroat pumps have recently replaced several gravity-fed brass fixtures in AdTech’s operation. The gravity fed process involved threading the brass fixture into the small bung in the top of the drum, threading a vent into the large bung, placing the drum on a roll down drum fixture and tipping the drum into the horizontal position for dispensing.

There are many inherent difficulties with the gravity-fed spigot system. First, the spigots can clog up easily and can be difficult to remove. It can be very labor intensive and awkward to remove the fluid from the drum. Secondly, it is difficult to control the flow rate from the drum. Further, leaks are common with the spigot system, which contributes to fugitive inventory loss. Finally, this system does not allow for complete removal of all fluid from the drum, so additional labor and handling is required to make the drum R.C.R.A. ready (Resource Conservation and Recovery Act). With GoatThroat, AdTech Ceramics is able to make all of its containers R.C.R.A. ready, which means that the drums have no more than two inches of product left in the drum after dispensing operations are completed. According to David Kuster, “These pumps will literally leave a few ounces of fluid in the bottom of the drum and that is a very good thing when you are paying for chemicals by the pound and or gallon. Our company was leaving approximately 5 to 8 gallons in the drums when we were utilizing the brass (horizontal drum caddy) set up and that was returned to the company that we bought it from. Then we had to pay for that much product again so what a great cost saver to be able to utilize that extra product thanks to the GoatThroat “”

The employees at AdTech Ceramics, Inc. appreciate how much easier fluid handling is with GoatThroat Pumps. Several people have commented that dispensing their own chemicals no longer daunts them. According to David Kuster, “Now the drums can stay in the upright position. This greatly reduces the handling of the drums, injuries to our workers and, guess what? No more leaking drum fittings. The GoatThroat pumps are a definite improvement for my Safety Program. These pumps nearly drain a drum dry. This helps on the disposal end when every drum is already RCRA empty and ready to be disposed of.” Almost every negative aspect of handling organic solvents in an explosion proof environment is addressed by the GoatThroat technology.

Every day industrial workers transfer potentially hazardous chemicals, such as solvents, acetones, lubricants, cleansers, and acids, from large drums into smaller containers, or into machinery. This transfer of chemicals at the point of use, however, can have serious consequences when manual “tip-and-pour” techniques or poorly designed pumps are used.

Whether the chemicals are toxic, corrosive, reactive, flammable, emit volatile organic compounds (VOCs), or are even potentially explosive, the danger of accidental contact, even for short periods, can pose a severe hazard to workers.

In addition to the potential for injury, there can also be serious financial ramifications for the facility involved. The risks include cost to treat injuries or perform cleanup, as well as workers’ compensation claims, potential liability, OSHA fines, loss of expensive chemicals and even facility/production shutdown.

“It can be catastrophic to a company if toxic or highly flammable material is accidentally released at the point of use,” says Deborah Grubbe, PE, CEng, and founder of Operations and Safety Solutions, a consulting firm specializing in industrial safety. “Companies have to assume that if something can go wrong during chemical transfer, it will, and take appropriate precautions to prevent what could be significant consequences.”

Spiraling Costs of Loss of Containment
Grubbe, who has 40 years of experience working in the chemical, oil and gas industries, including at DuPont, NASA, and for the U.S. military, says “Any time you lose containment, you have an issue that can spiral out of control.”

Corrosive chemicals, for example, can burn skin or flesh. Some chemicals are toxic when touched or inhaled. Cyanotic agents, for instance, can be particularly dangerous or even fatal, since they rob the body of oxygen.

Many chemicals are flammable as well and can be ignited by even the smallest spark from nearby motors or other mechanical equipment. “There is no such thing as a small fire in my business,” says Grubbe.

In addition to cost of cleanup or treating injuries, there are also indirect costs that can be incurred. These include supervisors’ time to document the incident and respond to any added government inspection or scrutiny, as well as the potential for temporary shutdown of the facility.

“The indirect costs can be as much as 2-4 times the direct costs,” says Grubbe. “Not to mention potential liability, workers’ compensation issues, regulatory fines or potential actions from OSHA or the EPA.”

Chemical Transfer Techniques
Traditional practices of transferring liquid chemicals suffer from a number of drawbacks.

Manual techniques, such as the tip-and-pour method, are still common today. Tipping heavy barrels, however, can lead to overpouring or the barrel toppling.

“Some companies choose to transfer of chemicals manually, but it is extremely difficult to control heavy drums,” cautions Grubbe. “I’d recommend against it because of the probability of a spill is so high.”

Although a number of pump types exist for chemical transfer (rotary, siphon, lever-action, piston and electric), most are not engineered as a sealed, contained system. In addition, these pumps can have seals that leak, are known to wear out quickly, and can be difficult to operate, making precise volume control and dispensing difficult.

In contrast, sealed pump systems can dramatically improve the safety and efficiency of chemical transfer.

“A sealed, contained system is ideal when dealing with a toxic, flammable, or corrosive liquid,” says Grubbe. “With sealed devices, like GoatThroat pumps, you can maintain a controlled containment from one vessel to another.”

Small, versatile, hand-operated pressure pumps, such as those manufactured by GoatThroat Pumps, are engineered to work as a sealed system. The pumps can be used for the safe transfer of over 1400 industrial chemicals, including the most aggressive acids, caustics and solvents.

These pumps function essentially like a beer tap. The operator attaches the pump, presses the plunger several times to build up a low amount of internal pressure, and then dispenses the liquid. The tap is configured to provide precise control over the fluid delivery, from slow (1ML/ 1 oz.) up to 4.5 gallons per minute, depending on viscosity.

Because such pumps use very low pressure (<6 PSI) to transfer fluids through the line and contain automatic pressure relief valves, they are safe to use with virtually any container from 2-gallon jugs to 55-gallon drums.

Adoption of Sealed Pump Systems
Although Design Mark Industries keeps its chemicals in a vented, explosion-proof room, the supplier of membrane switches, keypads, and touchscreens sought to further improve the safety and efficiency of transferring acetone and acetate-based chemicals from 55-gallon drums into quart and 5-gallon containers. The chemicals are used in the screen printing process of printed circuitry and graphic overlays.

Production Supervisor Vincent Francisco ruled out manual pouring because of the potential of injury and lack of control in dispensing. Instead, he utilized a variety of traditional pumps including rotary, siphon, and lever-action, but found them all unsatisfactory.

“I was replacing the pumps once or twice a year because they kept breaking down, delivered imprecise amounts, and were not designed as completely self-contained, sealed systems,” says Francisco.

After considerable research online, Francisco decided to utilize a sealed chemical pump system from GoatThroat.

“I consider using [GoatThroat] pumps a ‘best practice’ technique because the barrels remain upright and the entire system is sealed so there is never an issue with exposure or VOCs when transferring chemicals,” says Francisco.

According to Francisco, the sealed pump system is intuitive to use because it operates like a beer tap. “Just pump the plunger a few times, open the spigot and dispense. You have full control over how much is dispensed – even the tiniest amounts – or you can leave it open for a continuous flow. It delivers the precise amount needed.”

Francisco adds that the pumps are built for longevity. Over the past 11 years, he estimates that his company has saved thousands of dollars by eliminating the cost of replacement pumps. “I’ve only replaced one of our three pumps over that time due to constant use, and we could have used it longer,” says Francisco.

Allergy Laboratories Inc., a FDA licensed pharmaceutical manufacturer of biological extracts for the diagnostic testing and therapeutic treatment of allergies, also uses a sealed pump system to transfer acetone from 55 gallon drums to 1 gallon containers for a process to dry out pollen and mold.

According to Charles Cheek, facility manager for Allergy Laboratories, the pharmaceutical chemical delivery process must be very clean and no foreign material can be introduced into the acetone.

Because acetone is highly flammable, he was concerned about using an electric pump that could potentially create a spark. As a result, he decided to purchase a pump that had no electrical or moving parts that could create a hazard.

“We’ve found GoatThroat pumps to be a much safer way to transport chemical liquids,” says Cheek, who utilizes a pneumatic adaptor accessory to supply pressure via in-house compressed air. “There is no spillage, splatter, overpouring, leaking, or VOCs because the system is self-contained. There is no sprayback and we do not get chemicals on our hands. It is a nice, clean delivery system.”

Besides enhancing safety, Cheek says a sealed system can prevent loss of expensive chemicals like acetone. “I haven’t lost any product due to the pumps. They eliminate evaporation, do not leak or drip and I can adjust the flow to get the exact amount I need without spilling or overflow.”

Cheek says he also utilizes pumps to transfer corrosive chemicals used to remove scale from several boilers. Previously, he had to fill a glass beaker with the chemical, climb a ladder and pour the chemicals into the top of the tank.

Now, that work is performed with the help of the pump and 6’ extension hose accessory to efficiently deliver the cleaning chemicals.

“Every time inspectors come in, they say we have the cleanest boiler they have seen,” says Cheek. “With this chemical transfer system, I’m able to transfer exactly what I need to get the job done.”

For more info: call 866-639-4628 toll free; Fax: 212-243-6070; E-mail info@goatthroat.com; or write to Westcott Distribution, Inc. 60 Shell Avenue Milford, CT 06460.