Trelleborg Acquires Anderson Seal

Trelleborg Sealing Solutions has signed an agreement and finalized the acquisition of Anderson Seal LLC, a privately owned US-based seal distributor and value-added service partner.

Trelleborg Anderson Seal

Linda Muroski, President of Marketing Americas, says: “Anderson Seal’s dynamic company culture and vision complements that of Trelleborg Sealing Solutions, as well as supports its Total Value of Ownership (TVO) approach and advanced delivery program. The company’s expertise in complex assembly and best practices in kitting will continue to deliver the kind of value our customers have come to expect.”

This acquisition supports the growth strategy of Trelleborg Sealing Solutions and further expands the delivery and service of seals, gaskets and custom-molded products for Original Equipment Manufacturers (OEMs) in industries such as automotive, hydraulic, and medical/life sciences. The acquisition will significantly increase the presence for Trelleborg in the Midwestern United States and accelerate its advanced delivery services.

The acquired company has an office and warehouse in New Berlin, Wisconsin. With sales amounting to approximately $17 M in 2015. This bolt-on acquisition is part of Trelleborg’s strategy to strengthen its positions in attractive market segments.

Jennifer Hansen, President of Anderson Seal, says: “We are thrilled to be able to continue to provide exceptional services to our customers in the same manner as we have been doing over the last decade but now with the advantage and backing of a global leader.”

Trelleborg and Jetseal Inc. Sign Distribution Agreement for Aerospace Metallic Seals

Trelleborg Sealing Solutions and Jetseal Inc. are proud to announce the signing of an exclusive distribution agreement for advanced specialty metallic aerospace seals covering the whole of the European aerospace market.

Aerospace Metallic Seals









The recently signed distribution agreement combines the wide aerospace market presence of Trelleborg Sealing Solutions with the highly engineered metallic seals expertise of HEICO’s Jetseal, Inc.

Michel Prouff, Director Global Marketing Aerospace for Trelleborg Sealing Solutions, says: “Trelleborg Sealing Solutions continues to rapidly expanding into the European aerospace engine market and this new distribution agreement with Jetseal Inc. offers significant market opportunities for both companies.”

In addition to its wide range of aerospace seals, Trelleborg Sealing Solutions is now offering a full line of metallic seals, ranging from industry standard AS1895 e-seals to complex multi-convolution seals for sealing high pressure and temperature engine applications. Additionally, the new partnership will allow Trelleborg Sealing Solutions to offer seals for use in the hot section of the turbine engine up to +750 °C.

Glossary of Sealing Terms Featured in Flow Control

Flow Control magazine selected key terms from the Trelleborg Sealing Solutions glossary of commonly used sealing terms.

Trelleborg Sealing Glossary

Trelleborg Sealing Solutions aims to educate customers and other interested parties on sealing concepts with a continually growing range of resources to aid engineers who specify seals.

Flow Control magazine dipped into one of these, our glossary of commonly used sealing terms, and selected a listing from the thousands of terms online. Check out the terms they called out below, explore the complete online glossary or see the article

AXIAL SEAL: A term usually applied to an O-Ring where the seal is applied on the top and bottom surface. Also known as a face seal.

BACK PUMPING: The action in which fluid film passes between the seal and the mating dynamic surface during an extend stroke and then is returned to the system during the retract stroke through hydrodynamic principles.

BI-DIRECTIONAL SEAL: A seal used to prevent leakage across both sides of the seal under different levels of pressure or fluid exposure. Or a seal used in applications where motion (rotary – clockwise, counter-clockwise, linear– in or out, etc.) occurs in reversing fashion.

COMPRESSION SET: Permanent, unrecoverable deformation after a shape is compressed.

DIAPHRAGM: Dynamic elements with flexible walls in which to flex or roll that can be used in pumps, valves, regulators to regulate pressure, control the flow of media, or separate two media.

DYNAMIC SEAL: A seal used in hardware in which one of the hardware components is moving.

ELASTOMER: Any synthetic or natural material able to demonstrate a significant amount of elasticity. Sometimes used as a synonym for rubber.

EXCLUDER: A sealing device which keeps dirt, moisture, and other contaminants out of the sealing area to protect the seal, the fluid purity, electronic circuits, optical devices, or other components.

FLUOROCARBON: Organic compound having fluorine atoms in its chemical structure. This structure usually lends chemically and thermal stability in plastics.

GASKET: Static seal used between two parallel faces.

HYDRODYNAMIC SEAL: Seal with special patterns used to force fluid back under the sealing lip.

NITRILE: The most common of elastomers used in the production of O-Rings. Used because of resistance to hydraulic oils and good mechanical properties.

O-RING: A mechanical gasket or washer, an elastomer loop with a disc-shaped cross-section. Also known as packing or toric joint, it is seated in a groove at the interface between two or more parts and compressed, creating a seal.

PERMEATION: The penetration of a liquid or gas through a solid material; the degree of permeation is relative to a material’s permeability.

PTFE: Abbreviation for PolyTetraFluoroEthylene, a synthetic polymer containing fluorine, well known for its low friction, wide temperature range, and chemical inertness. It is most widely known under the DuPont brand name, Teflon.

RADIAL SEAL: Any seal designed to endure both radial and axial loads, such as those used in rotary elements, e.g., a shaft or rotating bore.

ROTARY SEAL: A seal in which the shaft, turns about its axis in relation to the fixed element in one direction only.

SEALING FORCE: The resultant force acting on the seal as a consequence of the individual forces acting on the seal joint.

STATIC SEAL: A seal in which there is no macro-scale dynamic motion between sealing surfaces.

TENSILE STRENGTH: Also known as Ultimate Tensile Strength (UTS), Breaking Load, or Breaking Stress, it is the amount of maximum stress used to rate a material’s capacity to withstand tensile stress, measured as the force per unit area—usually in pounds per square inch (PSI)—that a material can endure while being stretched at a constant rate before tearing. In rubber testing, it is the maximum PSI of the original cross-sectional area.

TOLERANCE: The permissible deviation from a specified value of a structural dimension.

VULCANIZATION: Process of chemical reaction in rubber materials in which chains are crosslinked, resulting in strength, elasticity, and other significant property changes.

Scaling Extreme Conditions to Bring ‘Next Generation’ Oil Harvesting

Innovation and specialist technology is creating the “next generation” of oil harvesting and buying the world more time until the discovery of energy’s ‘holy grail’, according to a leading engineer.Oil Harvesting

Andrew Longdon, UK technical manager of Trelleborg Sealing Solutions, says oil operators are increasingly turning to unconventional wells, previously believed to be too deep and extreme for existing capabilities, in response to the planet’s shrinking supply of natural resources.

Energy’s holy grail
The Institution of Mechanical Engineers says there are an estimated 1.3 trillion barrels of proven oil reserves left in the world’s major fields, which at present rates of consumption will last for 40 years.

However, Mr Longdon said: “The race to develop a biofuel which is a genuinely credible alternative to oil, both sustainable and commercially available, is, as yet, failing. So until energy’s holy grail is found, oilfield operators are left with the challenge of buying the world more time.

Unconventional wells
“We are therefore having to consider uncharted deepwater territories like unconventional wells, but to do this operators need to rely on subsea processing technology to meet new high pressure / high temperature conditions (HP / HT).

“Conventional subsea operating temperatures of up to +120 °C/+248 °F increase to over +200 °C/+392 °F in deepwater locations, whereas typical pressures occasionally treble from a previously accepted high point of 69 MPa/10,000 psi to 207 MPa/30,000 psi.”

Critical sealing elements
Energy giant Total has estimated deep offshore could hold seven per cent of the world’s oil and gas resources, unlocking the potential of 330 billion barrels of oil reserves representing seven years’ worth of global consumption. This equates to almost a quarter of the planet’s undiscovered resources.

Seals are critical within subsea systems, especially in valves and downhole tools. They ensure optimum operation of equipment and are the primary barrier to system fluid loss or system fluid contamination from external sources. Subsea seals are the main source of prevention of hydrocarbon leakage from oilfield completion or production equipment and as such, perform a vital role in meeting environmental and workforce safety concerns, in addition to enhancing performance of the tools themselves.

Deep offshore
Mr Longdon added: “We have developed application-specific seal designs to provide high-integrity sealing able to stand up to the extreme operating temperatures and pressures of deepwater locations.

“Deep offshore is the future of oil harvesting and also the emerging present. It is the next generation of oil exploration and Trelleborg Sealing Solutions will continue to invest in developing sealing innovations to support this trend.”

Multi-Contact Turcon® Variseal®
The company’s Multi-Contact Turcon® Variseal® has been developed to replace multiple chevron seals or V-stack type products in subsea valve stems requiring high-integrity sealing capability. It comprises of a series of single-acting spring-energised seals housed within a U-shaped Turcon® polytetrafluoroethylene (PTFE) based-material seal profile.

The unique single-piece design significantly improves sealing integrity and leak tightness in high-pressure applications by providing higher contact force across multiple seal hardware interfaces.