Trelleborg Introduces Rotary Seal that Allows Equipment to Run Faster at High Pressure for Longer

FORT WAYNE, Ind., Nov. 19, 2018 (GLOBE NEWSWIRE) -- Trelleborg Sealing Solutions introduces an innovative seal, Turcon^® Roto Glyd Ring^® V, which is primarily intended for double-acting pressure within severe working conditions that require extended rotary service. The seal is specifically engineered for machinery where a high pressure to velocity value is required to allow equipment to run at the highest possible speeds in high pressures for an extended service life.

Turcon^® Roto Glyd Ring^® V is a premium double-acting rotary seal with outstanding performance and reliability. Reduced contact surfaces under all operating conditions significantly improve friction and wear characteristics without compromising sealing performance. Designed for continuous service at high and low PV values, the seal also gives improved performance in oscillating conditions or where there are frequent changes in pressure and/or velocity.

Nancy Getz, Product Line Director, Global Operations Engineered Plastics, says: “Customers are demanding increased performance from rotary seals that challenge the PV values of current seals. We, therefore, needed to develop a rotary seal that can run at higher speeds combined with higher pressures. This resulted in the development of the unique Turcon^® Roto Glyd Ring^® V, which not only achieves these requirements but also, by virtue of lower heat generation, offers a significantly extended seal life. For the equipment operator that means lower overall costs due to reduced maintenance requirements and energy consumption.” 

Test results show that Turcon^® Roto Glyd Ring^® V runs with low frictional torque at all pressures from 0.5 MPa and above with low sensitivity to pressure increases from 0.5 to 20 MPa. It achieved a PV twice as high as other bidirectional seals and demonstrated 50% lower friction. Furthermore, wear of the seal and O-Ring was so low that it could not be measured.

Like other O-Ring activated Slipper Seals, the initial squeeze of the O-Ring ensures sufficient contact pressure between seal and mating surface to provide tightness at low pressure. With increasing system pressure, the O-Ring and the seal body direct have a contact force on the sealing surface to ensure sealing efficiency at all pressures.

Turcon^® Roto Glyd Ring^® V has a built-in valve function. Valve ports are made from both sides of the Turcon^® ring profile to the space in the center, which is the lubricating groove. An elastomer ring is installed in the lubricating groove to prevent static leakage through the ports.

When Turcon^® Roto Glyd Ring^® V is pressurized from one or the other side, the elastomer ring opens the port on the pressure side and equalizes the pressure beneath the elastomer ring – pressure balancing the seal by more than half. Shifting pressurization through the ports also renews the fluid in the space between the “legs”, improving lubrication under the seal.

Turcon^® Roto Glyd Ring^® V is ideal for equipment for which a long service life is required in demanding service conditions. Typical examples are machining centers, hydraulic swivels, lead-troughs, rotary connections with swivel movements, excavators, forestry machinery, hydraulic rotators, robots, manipulators, indexing tables, pivoting motors, hydraulic motors, blow molding machines, top drives and core cutting equipment.

With maximum recommended operating temperatures of +100 °C/ +212 °F (up to +150°C/ +302°F at lower PV-values), Turcon^® Roto Glyd Ring^® V is designed to fit into standard Roto Glyd Ring^® grooves. It is available in four cross section series; for shafts in diameters from 35 to 500 millimeters/ 1.377 to 19.685 inches and for bores from 22 to 500 millimeters / 0.866 to 19.685 inches.

When specifying Turcon^® Roto Glyd Ring^® V, users should note the following. Pressure should be limited to a maximum of 30 MPa. Velocity needs to be limited to 2.0 meters per second. The Roto Glyd Ring^® V has been successfully tested up to a combined PV of 10 MPa.m/s.

A patent is pending.

For more information or high-resolution images, please contact:

Jim Dennison

Marketing Director

Trelleborg Sealing Solutions Americas

Tel: 1

Email:

Press Release distributed in the Americas by:

Valerie Harding

Ripple Effect Communications

Tel: 7

Email:

Trelleborg Sealing Solutions and Trelleborg Group

Trelleborg Sealing Solutions is one of the world’s leading developers, manufacturers and suppliers of precision seals, bearings and custom-molded polymer components. It focuses on meeting the most demanding needs of aerospace, automotive and general industrial customers with innovative solutions. Its network extends to over 25 production facilities and more than 50 marketing companies globally. The business area accelerates the progress of its customers through outstanding local support, an unrivalled product range including patented products and proprietary materials, a portfolio of established brands, unique process offerings, its Service PLUS value chain solution and ‘Ease of Doing Business’ philosophy. 





Trelleborg is a world leader in engineered polymer solutions that seal, damp and protect critical applications in demanding environments. Its innovative solutions accelerate performance for customers in a sustainable way. The Trelleborg Group has annual sales of about SEK 32 billion (EUR 3.28 billion, USD 3.69 billion) and operations in about 50 countries. The Group comprises five business areas: Trelleborg Coated Systems, Trelleborg Industrial Solutions, Trelleborg Offshore & Construction, Trelleborg Sealing Solutions and Trelleborg Wheel Systems. The Trelleborg share has been listed on the Stock Exchange since 1964 and is listed on Nasdaq Stockholm, Large Cap. .