1234 North Avenue Luke Lane
South Bend, IN 360001
987.654.3216
987.654.3217
info@easyseo.com
support@easyseo.com

Catalog

T-Lon Solutions


GRM Metric Bi-Directional Rod Seal

The GRM metric rod seal is a proven reliable seal for both low and high pressure systems. The GRM seal is a bi-directional seal and filled T-LON® PTFE compound with an oring elastomer energizer designed for reciprocating applications. The filled PTFE seal ring is manufactured with an interference fit with the rod and optimum compression with the o-ring energizer. The optimized sealing surface allows a fluid film to form between the seal and rod during reciprocating motion with excellent sealability for static holding applications.

Face Grooves (Optional): For applications of high pressure rise rates, pressure spikes, and rapid change of direction, the seal is apt to experience blow-by. To prevent blow-by and to energize the seal rapidly, face grooves are added to both sides of the seal.

Advantages:

  • Low seal drag/friction (Minimize energy loss)
  • No Stick-slip (Smooth Operation)
  • Long seal life from T-LON® filled PTFE compounds
  • Available for rods up to 500 mm

Applications:

  • Hydraulic Rams/Presses
  • Hydraulic & Pneumatic Valves
  • Injection Molding Machines

Technical Data: 

(1)T-LON® seal compound determines allowable pressure and velocity ranges • Velocity: Up to 4 m/s • Pressure: Up to 60 MPa (Function of e-gap and T-LON® compound. Max velocity and pressure cannot be used together)

Most Common:

BRONZE FILLED PTFE (“21” or “22”)

  • Highest Extrusion Resistance (Higher bronze content increases extrusion/wear resistance; I.E. larger e-gap allowable)
  • Good sealability

CARBON/GRAPHITE FILLED PTFE (“36”)

  • Good for pneumatics and nonlubricating fluids
  • More chemical resistant and used in applications with short stroke movements/vibrations

(2) Loader compound determines temperature and chemical compatibility

Most Common:

NBR SHORE 70 A (“P”)

  • Working Temp. Range -35°C to 110°C (121°C intermittent)
  • Commonly used with greases, aliphatic hydrocarbon mineral and vegetable oils, and various hydraulic fluids

EPDM SHORE 70 A (“E”)

  • Working Temp. Range -45°C to 150°C (204°C steam intermittent)
  • Commonly used with water, steam, water/ silicone/ glycol based fluids, and app’s affected by ozone and weathering.

Download Product PDF

Have questions? Our team is ready to help with anything you need. Feel free to reach out.

Contact T-Lon 888.340.TLON