A Publication of Thermoseal Inc., Sidney, OH The pacesetter in gasket sealing technology Spring 2011 Product Training and Support Keeps up with Market Demands Thermoseal recently conducted a two-day seminar with APG (American Packing & Gasket Co.) of Houston, TX. The training seminar was to familiarize APG’s sales force with Thermoseal’s recently launched Performance Technology Group gasket materials. This product line was designed specifically for the Original Equipment and Aſtermarket industries. Comprehensive training on the Mul-Layer Technology Grades of compressed fiber gasket materials and the cost effecve Advantage Roll Goods products consisted of material specificaons, technical training, case studies including discussions regarding markets and applicaons as well as various materials tesng in Thermoseal’s lab. APG conducted hands-on material tesng in accordance to the recently approved ASTM Hot Compression Test Method and were able to measure and compare material properes. Klinger HCT now ASTM Standard The well-established Klinger Hot Compression Test determines the load bearing capabilies of gasket materials under hot and cold condions. The original hot compression test concept was developed by the Klinger Group in the late 1940s. In contrast to BS 7531 and DIN 52913 tests, the Klinger Hot Compression Test keeps the gasket stress constant throughout the enre test. This subjects the gasket to more severe condions. Assembly is simulated by applying defined pressures and temperatures and startup is simulated by increasing the temperature. The gasket’s thickness measurements are taken at med intervals, and percent thickness decrease is reported. Hot compression properes are now covered in a new standard that was recently approved by ASTM. The new ASTM F2837, Test Method for Hot Compression Properes of Gasket Materials, provides gasket manufacturers with a test for measuring the hot compression properes of a gasket material, including, creep resistance and compression set. These results can be used as a QA tool as well as for material evaluaons. Thermoseal’s commitment to quality is best demonstrated in our on-site lab and tesng facilies, a rarity in the industry. Quality assurance specialists subject sealing materials to a baery of tests to ensure performance will meet or exceed specificaons for the product. And, all tesng adheres to strict ASTM, naonal and/or internaonal specificaons to ensure performance, reliability and connued quality. C-7400 Electrical Values In relaon to gaskeng applicaons, a gasket acts as an insulator to the flow of electrical current from one conducve surface to another. The dielectric strength is the maximum working voltage a material can withstand without experiencing failure of its insulang properes. Dielectric strength is usually expressed as a voltage gradient such as volts per mm (kV/mm). KLINGERSIL C-7400 EPDM and Aramid fiber gaskets sasfy both sealing and electrical requirements. The dielectric strength for this material is 22 kV/mm. Gaskets from this material provide an effecve seal and electrical isolaon of the flanges. The high dielectric properes provide good electrical characteriscs and bulk resisvity.
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A Publication of Thermoseal Inc., Sidney, OH The pacesetter in gasket sealing technology Spring 2011
Product Training and Support Keeps up with Market DemandsThermoseal recently conducted a two-day seminar with APG (American Packing & Gasket Co.) of Houston, TX. The training seminar was to familiarize APG’s sales force with Thermoseal’s recently launched Performance Technology Group gasket materials. This product line was designed specifically for the Original Equipment and Aftermarket industries.
Comprehensive training on the Multi-Layer Technology Grades of compressed fiber gasket materials and the cost effective Advantage Roll Goods products consisted of material specifications, technical training, case studies including discussions regarding markets and applications as well as various materials testing in Thermoseal’s lab.
APG conducted hands-on material testing in accordance to the recently approved ASTM Hot Compression Test Method and were able to measure and compare material properties.
Klinger HCT now ASTM StandardThe well-established Klinger Hot Compression Test determines the load bearing capabilities of gasket materials under hot and cold conditions. The original hot compression test concept was developed by the Klinger Group in the late 1940s. In contrast to BS 7531 and DIN 52913 tests, the Klinger Hot Compression Test keeps the gasket stress constant throughout the entire test. This subjects the gasket to more severe conditions. Assembly is simulated by applying defined pressures and temperatures and startup is simulated by increasing the temperature. The gasket’s thickness measurements are taken at timed intervals, and percent thickness decrease is reported.
Hot compression properties are now covered in a new standard
that was recently approved by ASTM. The new ASTM F2837, Test Method for Hot Compression Properties of Gasket Materials, provides gasket manufacturers with a test for measuring the hot compression properties of a gasket material, including, creep
resistance and compression set. These results can be used as a QA tool as well as for material evaluations.
Thermoseal’s commitment to quality is best demonstrated in our on-site lab and testing facilities, a rarity in the industry. Quality
assurance specialists subject sealing materials to a battery of tests to ensure performance will meet or exceed specifications for the product. And, all testing adheres to strict ASTM, national and/or international specifications to ensure performance, reliability and continued quality.
C-7400 Electrical ValuesIn relation to gasketing applications, a gasket acts as an insulator to the flow of electrical current from one conductive surface to another.
The dielectric strength is the maximum working voltage a material can withstand without experiencing failure of its insulating properties. Dielectric strength is usually expressed as a voltage gradient such as volts per mm (kV/mm).
KLINGERSIL C-7400 EPDM and Aramid fiber gaskets satisfy both sealing and electrical requirements. The dielectric strength for this material is 22 kV/mm. Gaskets from this material provide an effective seal and electrical isolation of the flanges. The high dielectric properties provide good electrical characteristics and bulk resistivity.
Thermoseal Inc. 2350 Campbell Road Sidney, OH 45365-9573 www.thermosealinc.comPhone: 937-498-2222 Toll Free: 800-990-SEAL (7325) FAX: 937-498-4911
Value-Added Anti-Stick for Graphite Sheet Just Got Better
KLINGERSIL C-4433 and C-4439 gaskets were recently fire-safe tested by an independent lab to the protocol of DIN EN ISO 10497, 11.2004 / API 607, fifth edition, 6.2005 on a flanged ball valve.
The valves were burned for 30 minutes according to the test procedure, and the results show both gaskets met the test requirements.
Since its introduction in 1996, KLINGERSIL C-4433 has solidified a reputation as
the premier high end compressed gasket sheet for steam and plant
utility applications. It has been described as the best sheet on the market. Plant engineers and maintenance departments have been using this product to replace multiple styles, types, and varieties that
have historically clogged inventories of fabricators
and plant storerooms alike. As a result, operational costs have
been reduced and safety has been enhanced.
KLINGERSIL C-4439 has an added galvanized low carbon steel insert. The metal reinforcement strengthens the material when subjected to mechanical loads due to pressure and/or temperature fluctuations.
The combination of synthetic and glass fibers bonded with a nitrile binder make both KLINGERSIL C-4433 and C-4439 ultimate steam sheets with outstanding stress relaxation properties.
C-4433 and C-4439 Approvals are Hot News
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Klinger AG, Egliswil, Switzerland recently developed and installed a new processing line for the Anti-Stick (“AS”) coating on KLINGER Graphite Laminate gasket materials. The new process replaces coating rollers with a spray system that improves the production, finish, and function of the graphite laminate AS materials.
The automated one-step system is now able to perform the following processes:
• Apply the AS coating • Dry the surface • Print the KLINGER branding • Cut and finish the material
The spray nozzles are automatically guided over the material to disperse a uniform coating and are cleaned at controlled intervals to prevent clogging of the injectors. The end result is an improved surface appearance while still maintaining anti-stick properties.
KLINGER Graphite Laminate materials do not flow under pressure and temperature loading, and are a reliable source for sealing of gases and liquids. They have an outstanding resistance against temperature variations and high thermal conductivity.
The AS coating keeps gaskets from sticking to flange faces so they can be easily separated and the spent gasket can be quickly removed. It also promotes higher gasket performance by reducing graphite build-up. The AS coating has no effects on material performance characteristics. AS coating can help save both time and money by reducing downtime and the cost of prepping and cleaning the flanges.
AS coating is only available upon request for a minimal fee. For additional information on this value-added option, contact Thermoseal’s Inside Sales Team.
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