var defaultHiddenFieldNameValue = ""; function getQueryStringParamValue(strQStrParam) { var strURL = document.location.href; var strQStrParamValue = ""; if (strURL.indexOf('?') != -1) { strQStrParamValue = strURL.substr(strURL.indexOf('?') + 1); if (strQStrParamValue.indexOf(strQStrParam) != -1) { strQStrParamValue = strQStrParamValue.substr(strQStrParamValue.indexOf(strQStrParam)); strQStrParamValue = strQStrParamValue.substr(strQStrParamValue.indexOf('=') + 1); if (strQStrParamValue.indexOf('&') != -1) strQStrParamValue = strQStrParamValue.substr(0, strQStrParamValue.indexOf('&')); return strQStrParamValue; }else{ strQStrParamValue = defaultHiddenFieldNameValue; return strQStrParamValue; } }else{ strQStrParamValue = defaultHiddenFieldNameValue; return strQStrParamValue; } } // HTML Form name goes here var form = "Balston_CompAir_01"; function setCampaign(){ var elqForm = document.forms[form]; //repeat for each field to populate Enter URL Variable HTML name elqForm.elements['from_url'].value = getQueryStringParamValue('from_url'); } window.onload = setCampaign; >
Rotary FlexiSeal™ PTFE Seals

Rotary FlexiSeal PTFE lip seals are designed for applications where elastomer lip seals fail to meet required temperature range and are used where speed is relatively low (<1500 sfpm) and pressures are high (up to 10,000 psi). The spring-energized U-cup design utilizes a variety of jacket and lip profiles, spring types, and materials.  Various OD configurations to accommodate housing cavities. 


Parker Hannifin Corporation
Engineered Polymer Systems Div.
Phone: 801 972 3000
eps-ccare@parker.com
© 2016, Parker Hannifin Corporation

  • Size Range: 
    • FlexiLip - 0.625 to 12"
    • FlexiCase - 0.235" to 6"
  • Speed: To1500 fpm depending on profile
  • Pressures:  To 10,000 psi depending on profile
  • Various OD configurations
    • Flanged OD where cavity permits
    • O-ring centered along OD
    • O-ring located in heel
  • Spring options:  
    • Cantilever (V-Series)
    • Canted Coil (C-Series)
  • Excellent fluid compatibility
  • Wide temperature range
  • Applications:
    • High temperatures
    • Poor lubrication
    • Harsh chemical environments

Parker’s Rotary FlexiSeal™ product line is a problem solver for radial applications with extreme conditions that involve lower speeds and high pressures.


Rotary FlexiSeal profiles are designed for applications where elastomer lip seals fail to meet required temperature range and are used where speed is relatively low (<1500 sfpm) and pressures are high (up to 10,000 psi). Its spring-energized U-cup design utilizes a variety of jacket and lip profiles, spring types, and materials. 


Different spring designs are available to energize the PTFE jacket:  V-shaped cantilever springs (V-Series) and canted coil springs (C-Series).  The helical spring (H-Series) should only be used for static or very slow rotary applications.


Rotary FlexiSeals feature either a flanged design or an O-ring on the OD to keep the seal fixed in the bore as the shaft rotates.  The O-ring can either be centered along the OD or may be located in the heel of the seal.  Virtually any O-ring material can be supplied with a custom rotary FlexiSeal, but a fluorocarbon material is standard.


Since the FlexiSeal solves problems along several parameters, it is used in virtually every market.  Examples of extreme condition applications that involve lower speeds and higher pressures for which the rotary FlexiSeal is best suited include:

  • Compressors
  • Cryogenics
  • FDA Clean Grade machinery
  • Jet engines
  • Hydraulic cylinders
  • Pressure washers
  • Robotics
  • Rotary unions
  • Steering cylinders
  • Swivels
  • Vapor recovery systems

Rotary FlexiSeal™ PTFE Seals
View Rotary FlexiSeals Section of Rotary Seal Design Guide
View Rotary FlexiSeal™ Profiles in the Catalog
Need assistance with product selection?  Click on the Request Information button and tell us about your project.
Request Information