High-Pressure Piston Seal withstands up to 800 bar.
February 22, 2008 -
HDP 330 consists of polyamide slide ring for sealing, which is manufactured of fiberglass-filled modified polyamide. It also features nitrile rubber NBR energizer or contact pressure element that produces consistently high preloading force and offers protection against twisting in housing. Seal has high strength against gap extrusion, withstands surface finishes that usually accompany drawn tubes, and can traverse properly designed pressure ports.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Simrit Unveils HDP 330 High-Pressure Piston Seal at IFPE 2008
Two-part seal set enables cost-effective construction for applications with extreme operating conditions
PLYMOUTH, Mich., Feb. 20, 2008 - Simrit, the industrial sealing products division of Freudenberg-NOK, will profile its HDP 330 High-Pressure Piston Seal at the 2008 International Exposition for Power Transmission (IFPE) as a cost-effective solution that is resilient to extreme operating conditions.
This two-part seal set, consisting of a polyamide (PA) slide ring for sealing and an elastomeric energizing element for producing pre-load, is designed to withstand extreme pressure (up to 800 bar) without extruding. The HDP 330 complements Simrit's Merkel(TM) piston seal program, which is compatible with ISO 7425-1 groove standards for use in hydraulic cylinders in construction, agricultural and material handling equipment.
"Our polyamide HDP 330 piston seal offers cost-effective cylinder construction without sacrificing quality or durability," said Joel Johnson, vice president of technology, Simrit. "The seal demonstrates extreme strength against gap extrusion and has the ability to withstand higher surface finishes that usually accompany drawn tubes. Additionally, it has the capability to traverse properly designed pressure ports, while preventing cylinder drift because of the precisely molded cross section and step cut geometry."
The first part of the HDP 330 seal design is the sliding element, which consists of a fiberglass filled modified polyamide. The second part is the energizer or contact pressure element and is made from nitrile rubber NBR. High temperature, elastomer material HNBR energizers are also available. Together, Simrit's new seal design offers a tight sealing function and drift resistance, due to special molding technology.
Offering dynamic and static tightness that is comparable to polytetrafluoroethylene (PTFE) piston seals, but at lower cost, Simrit's new seal is interchangeable with O-ring energized seals. Its new design is quick and easy to assemble and is capable of running over properly designed ports, while also allowing for a greater bore surface roughness (compared to conventional seals). Additionally, its rectangular contact pressure element produces consistently high pre-loading force and offers high protection against twisting in the housing.
Product engineers interested in additional information can visit the Simrit booth
(#S-14005) at IFPE 2008, held at the Las Vegas Convention Center from March 11 - 15. Interested media attendees can attend the Simrit press event on Wednesday, March 12 from 3 to 4 p.m. in room N249-251. Please see editor's note for R.S.V.P. information.
The Simrit Division is based at Freudenberg-NOK's headquarters in Plymouth, Mich. and is part of the Freudenberg and NOK Group, which has total annual sales of more than $12 billion. Simrit offers an extensive portfolio of sealing solutions for the industrial, aerospace, appliance, diesel engine, marine, off-highway equipment, oil and gas, recreational vehicle and semiconductor markets.
For more information, visit the Simrit website at www.simrit.com.
Editor's note: To attend the March 12th Simrit press event, please contact Adriana Ferrari at 248-269-1122 or aferrari@bianchipr.com. Company Information: Name: Simrit, A Div. Of Freudenberg-NOK Address: 47690 E. Anchor Ct. City: Plymouth State: MI ZIP: 48170 Country: USA Phone: 866-2-SIMRIT FAX: 734-354-5500 http://www.simrit.com
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