REI Series Rod Wiper Seal
The REI rod wiper seal is a proven dual-acting reliable scraper ring preventing outside contamination (dirt, sand, shavings, dust, ect.) from entering the system. It also aids in removing the residual oil film on the rod from the system from entering the environment.
The REI wiper is a filled T-LON® filled PTFE compound with an o-ring 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 dual-acting scraper design must be assembled with the o-ring facing the environment for proper scraper function. The optimized profile removes the fluid film during rod extension and removes environmental contamination during rod retraction.
Advantages of the REI Series Rod Wiper Seal:
- Low seal drag/friction (Minimize energy loss)
- No Stick-slip (Smooth Operation)
- Long seal life from T-LON® filled PTFE compounds
- Wide temperature range and chemical compatibility (dependent on o-ring elastomer)
- Available for rods up to 44″ diameter
Applications of the REI Series Rod Wiper Seal:
- Industrial Hydraulic Cylinders
- Mobile Hydraulic Cylinders
- Pneumatic Cylinders
- Valve stem seals
Technical Data:
(1) T-LON® seal compound determines allowable velocity range and scrape-ability
- Velocity: Up to 13 ft/s
Most Common:
BRONZE FILLED PTFE (“22”)
- Highest hardness and extrusion- resistance for aggressive contamination
Mineral/MoS2 FILLED PTFE (“41”)
- Excellent all-purpose material with good wear resistance, low friction, and low abrasive characteristics
- More chemical resistant and used in dry-running applications
(2) Loader compound determines temperature and chemical compatibility
Most Common:
NBR SHORE 70 A (“P”)
- Working Temp. Range -30°F to 230°F (250°F intermittent)
- Commonly used with greases, aliphatic hydrocarbon mineral and vegetable oils, and various hydraulic fluids
EPDM SHORE 70 A (“E”)
- Working Temp. Range -50°F to 300°F (400°F steam intermittent)
- Commonly used with water, steam, water/ silicone/ glycol based fluids, and app’s affected by ozone and weathering.