Tuesday, May 21, 2013

Industry Challenges in Handling New Green Fuels and DEF

Hernon Manufacturing has engineered more than 5000 different types of adhesives and sealants. Our problem-solving approach and competitive pricing provides effective solutions for many different types of processes and industries including the petroleum and green fuel industries.

A few of our products are an ideal fit for use with standard petroleum products, DEF (diesel exhaust fluid), and compressed natural gas -- including butane and propane.

Dripstop® 940 & Standard Petroleum 
The use of petroleum has been an integral part of our lives since the development of the internal combustion engine. The process of collecting, transporting, storing and dispensing the fuel has evolved over time as more streamlined processes and products have been developed.  Hernon Manufacturing’s Dripstop® 940 is one particular product that has clearly made a difference in the petroleum industry and here’s why:

Hernon’s Dripstop® 940 is a high-speed, anaerobically-curing thread sealant perfect for use with standard petroleum fittings made up of inactive metals such as stainless steel and monel. Dripstop® 940 sealant is engineered with many advantages over conventional pipe thread sealants. For instance, the 940 will cure without shrinkage within the pipe threads creating a tough, insoluble, vibration proof seal that will not leak even if threads are damaged.

Another advantage using Dripstop® sealants for petroleum fittings is that Dripstop is 100 percent active, containing no solvents to evaporate. Dripstop does not shred like thread tape and it’s not subject to cold flow, pressure and temperature phenomena like non-hardening sealants. In addition to being superior to other sealing methods because it does not shrink, stretch, split, rot, distort, wear-out, or relax, joints will never loosen under vibration. Even when the sealant is put through pressure cycling tests, it does not weaken or loosen and continues to block a potential leak path.

Because a leak path can possibly be formed when parts are made-up, that is, threaded together, the sealant forms a plastic shim during the curing process, and can truly become a “custom” seal. The sealant that is not forced out during assembly anaerobically cures to a helical path in the thread roots to form an exacting match of the surface irregularities. The shim mirrors and fills all the voids, scratches, and thread nicks present in even the best-machined straight or pipe threads. Any non-confined or excess sealant material does not cure and thus does not pose the threat presented by particles such as shredded Tefon® tape which could foul valves, circuit elements, and clog screens or filters.

Additionally, grade number 940 has been tested and classified by the Underwriters Laboratories (UL) File Number MH14222 which indicates it does not spark and the fire hazard is small.

Note: Dripstop® 940 shouldn’t be used with certain plastics – testing should always be done to determine compatibility.

Dripstop® 940 & Diesel Exhaust Fluid (DEF) 
 Hernon Manufacturing’s customers within the Petroleum Bulk Transfer industry had requested a validated DEF compatible thread sealant. Typically, in DEF bulk transport and transfer equipment, stainless steel fittings are used. (A great application for Dripstop 940!)

In response to the customers’ request, Hernon Manufacturing submitted samples of its Dripstop® 940, a pipe sealant that is specifically formulated to work with stainless steel, to a certified and accredited automotive research lab, which conducts thousands of automotive fuel and lubricant analytical tests each month. The purpose of the test was to confirm that Dripstop® 940 was containment free to ISO-22241 standards and therefore compatible for DEF technology. (The test report is available upon request from Hernon.)

The product received the necessary approvals and exhibited 100% passing results for the requirements stated in the ISO-22241 showing it’s compatibility with DEF due to its containment free nature.

Other products previously used within the petroleum industry and not tested could possibly contain elements that could and do contaminate DEF thus causing serious and expensive damage to the SCR system. Because DEF is very “slippery” there have been many issues of leaking particularly where non-curing thread sealants and Teflon tape has been used. Without a validated DEF compatible thread sealant, users will see a lot more leaks with these non-compatible sealants -- even more than normally seen with standard petroleum pipe thread applications. Using Dripstop® 940 in DEF applications, this problem was solved.

Dripstop® 940 & Compressed Natural Gas 
Compressed natural gas is a clean-burning alternative fuel that can be used in vehicles as either compressed natural gas or liquefied natural gas. This green fuel is being used more and more in municipalities using compressed gas engines for vehicles. And in most instances stainless steel fittings are used. Another great application for the Dripstop 940!

Hernon’s Dripstop® 940 is ideal for use in devices handling compressed natural gas, with pressures under 300psig, and is UL approved. According to the Underwriters Laboratories, the fire hazard is small because Dripstop® 940 doesn’t spark, and there is no flash point in the liquid state. Dripstop® 940 is also approved for use with butane and propane so long as the pipe size does not exceed two inches in size. And as the Dripstop® 940 is formulated for outstanding effectiveness with stainless steel it is indeed ideal for this application.

Powerseal 932 & Standard Petroleum 
Another sealant engineered by Hernon Manufacturing ideal for use with standard petroleum is Powerseal 932. This is a single component, non-curing, non-hardening paste thread sealant which lubricates and seals threaded pipe connections and o-rings. Because it doesn’t cure, it makes for easy assembly and dis-assembly and repair of parts that may often need replacement. It also prevents corrosion and seizing of metal parts. This thread sealant is unaffected by water, oil, ammonia, glycerin, steam, all types of gases, petroleum products, exhaust fumes and most hard-to-hold liquids. Powerseal 932 withstands extreme temperatures and pressures and will not shrink, crack, or crumble.

The Future of Green Fuels 
As new fuels are released and demand increases, Hernon Manufacturing continues to work towards providing innovative solutions and products. E85, for example, is an ethanol fuel blend of 85 percent fuel and 15 percent gasoline or other hydrocarbon. This fuel has a number of advantages over conventional gasoline such as reduction in tailpipe emissions, a highly effective octane rating, and increasing engine performance. To keep up with demand, and help move the industry towards greener fuel solutions, Hernon sealants are being scheduled for future tests using E85. The company expects to have an effective solution for not only applications for E85, but also bio-diesel fuel within the next year.

HERNON Manufacturing has been committed to delivering world class adhesive, sealant, and impregnation solutions along with precision dispensing systems for nearly four decades. A long-time member of Central Florida’s industrial manufacturing community, HERNON offers strong brands and technologies, all made in the United States, for a diverse range of industries including: Energy/Power Generation, Medical, Electronics, Electrical, LED, Automotive, Appliances, Sporting Goods, Ammunition, Communications, Aerospace, Aviation, High Tech Audio, Defense, Fire Suppression, Transportation, and Marine. HERNON Manufacturing is proud to be an ISO-9001 registered company whose products meet or exceed Mil-Specs. HERNON Manufacturing has been recognized as a top company in Orlando and is listed in the Orlando Business Journal’s Book of Lists. The company also was awarded the 2012 ThinkGlobal Exporter of the Year, named one of Florida's Top Companies to Watch in 2012, has received the 2012 William C. Schwartz Industry Innovation Award for its advanced process for ammunition sealants, and was named 2013 State of Florida Small Business Exporter of the Year. Visit http://hernon.comhttp://hernon.com or call 407-322-4000 for more information.

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