Rod Seal U-Cup – Asymmetrical – Spring Loaded



Wide temperature range

Highly extrusion resistant with the use of a backup ring

Excellent fluid compatibility including water-based fluids and aggressive fluids

Exceptional low friction performance

Available in all standard sizes

Optional spring alloys available for improved performance and compatibility



The 119 series rod seal is ideal for most applications requiring low friction, high temperature, and improved fluid compatibility.

Typical applications include:

  • Hydraulic and Pneumatic Cylinders
  • Pressure Accumulators
  • Valve Stems
  • Nozzles
  • High Temperature
  • Aggressive Fluids

The 119 series rod seal features low friction PTFE energized with an internal spring. Standard materials are MT200 PTFE filled with Carbon/Graphite, available in standard sizes using a stainless steel spring. Also available with Elgiloy spring as an option for high heat or added chemical resistance. To suit a variety of applications, the series is also available in various filled PTFEs as well as Polyurethane and UHMW.

Material Code
PTFE/Bz + Spring MT20
PTFE/Glass Moly + Spring MT116
PTFE/Virgin + Spring MT119
PTFE/Carbon/Graphite + Spring MT200
UHMW + Spring ML47
Polyurethane + Spring MP172
Material Temperature Code Speed
PTFE/Bz + Spring -200F…+575F MT20 5 m/sec
PTFE/Glass Moly + Spring -250F…+550F MT116 5 m/sec
PTFE/Virgin + Spring -425F…+450F MT119 5 m/sec
PTFE/Carbon/Graphite + Spring -320F…+425F MT200 5 m/sec
UHMW + Spring -150F…+180F ML47 5 m/sec
Polyurethane + Spring -30F…+230F MP172 0.5 m/sec

Note: for other materials or fluids please contact our engineering department.

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