Product Overview
This advanced seal design is widely used in modern hydraulic equipment and follows the proven sealing concepts applied in high-performance piston seal systems. The PTFE sealing element ensures extremely low friction and outstanding chemical resistance, while the O-ring energizer maintains constant radial load for reliable sealing under varying pressure conditions.
PTFE PLUS SEAL is particularly suitable for hydraulic cylinders requiring smooth motion, reduced stick-slip behavior, and high wear resistance.
FEATURE 01
Extremely low friction coefficient
FEATURE 02
Excellent wear resistance
FEATURE 03
Double-acting sealing capability
FEATURE 04
Reduced stick-slip and smooth operation
FEATURE 05
High pressure capability
FEATURE 06
Long service life in demanding hydraulic environments
Technical Characteristics
| Parameter | Value |
|---|---|
| Seal Type | Double-acting piston seal |
| Pressure Capability | Up to 40 MPa (depending on clearance) |
| Temperature Range | –30°C to +200°C (depending on O-ring material) |
| Speed | Suitable for medium to high reciprocating speed |
| Installation | Closed groove |
Typical Applications
PTFE PLUS SEAL is widely used in:
- Hydraulic cylinders
- Construction and mobile machinery
- Industrial presses
- Injection molding machines
- Mining equipment
- Heavy-duty hydraulic systems
Material Construction Options
KAFLON offers multiple PTFE-based and rubber compound to meet different operating conditions:
1. Elastomers (Rubber Materials)
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NBR
HNBR
FKM
2. Thermoplastics (Engineering Plastics)
Virgin PTFE
Glass-filled PTFE
Carbon-filled PTFE
Bronze-filled PTFE
Material combinations can be optimized depending on temperature, pressure, and hydraulic fluid compatibility.
Frequently Asked Questions
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1. What is a PTFE PLUS SEAL?
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A PTFE PLUS SEAL is a high-performance hydraulic piston seal consisting of a PTFE sealing ring combined with an elastomer O-ring energizer. This design provides low friction, excellent wear resistance, and reliable sealing performance in dynamic hydraulic applications.
2. What are the advantages of PTFE PLUS SEAL compared to traditional rubber seals?
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PTFE PLUS SEAL offers several advantages:
Lower friction and smoother motion
Higher wear resistance
Better chemical resistance
Improved performance at high pressure
Reduced stick-slip behavior
Longer service life in demanding hydraulic systems
3. What applications are PTFE PLUS SEAL commonly used in?
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PTFE PLUS SEAL is widely used in:
Hydraulic cylinders
Construction and mobile machinery
Industrial presses
Injection molding machines
Mining equipment
Heavy-duty hydraulic systems
4. What materials are available for PTFE PLUS SEAL?
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The sealing ring is typically made from:
Virgin PTFE
Glass-filled PTFE
Carbon-filled PTFE
Bronze-filled PTFE
The energizing O-ring can be manufactured from:
NBR
HNBR
FKM
Material selection depends on operating temperature, pressure, and hydraulic fluid compatibility.
5. How do I select the correct PTFE PLUS SEAL size?
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To select the correct seal size, the following information is typically required:
Cylinder bore diameter
Piston diameter
Groove width and groove diameter
Operating pressure and temperature
Hydraulic fluid type
Providing these details helps ensure proper seal selection and performance.
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