TLQ5 Series Piston Seal
The TLQ5 hydraulic piston seal is a proven reliable “zero-leak” seal for both low and high pressure systems for applications requiring holding loads for an extended time period.
The TLQ5 hydraulic piston seal is a double-acting filled T- LON® PTFE compound designed to function with two-o-ring energizers in reciprocating applications along with an x-ring elastomer energizer on the OD to minimize leakage / OD blow-by. The filled PTFE seal ring is manufactured with an interference fit with the bore and optimum compression with the ID and x-ring energizers. This offers excellent sealability at low pressures and high pressures when the cylinder experiences ballooning.
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, conical face grooves are added to both sides of the seal. The redesigned conical face grooves have been tested to eliminate energizer nibbling.
Advantages:
- Low seal drag/friction (Minimize energy loss)
- No Stick-slip (Smooth Operation)
- Long seal life from T-LON® filled PTFE compounds
- Available for cylinders up to 27″ diameter
Applications:
- Accumulators
- Mobile Hydraulic Cylinders
- Lift Cylinders
- Agriculture Equipment
- Holding Cylinders
- Filling Machines
- Testing Machinery
Technical Data:
(1) T-LON® seal compound determines allowable pressure and velocity ranges
- Velocity: Up to 10 ft/s
- Pressure: Up to 8700 psi
(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
GLASS/MoS2 FILLED PTFE (“31”)
- Good wear resistance for tubes with rougher surface finish
- More chemical resistant and used in applications when seal could run dry
(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
FKM SHORE 75 A (“V”)
- Working Temp. Range -10°F to 400°F
- Commonly used in higher temperature applications or with acids, alcohols, fuels, and transmission fluids.