Spring Energized Lip Seals
The Eurosealings spring-energized PTFE seal represents the latest generation of spring-activated Teflon seals. These seals feature a specialized precision jacket/lip crafted from Teflon (or other high-performance polymers) and a corrosion-resistant stainless steel spring.
This unique combination allows the spring to press the seal lips against the gland and rod walls, with the pressure further assisting the spring force. The spring adjusts for lip wear, hardware tolerances, and eccentricities, providing continuous resilience to the seal lips. The Eurosealings design, with its sealing lip and spring arrangement, offers superior leakage protection compared to traditional lip seals.
Benefits
- Temperature -250°C to +300°C
- Chemical resistance against almost all medias
- Low friction coefficient
- No stick-slip-effect
- Diameter range from 2 mm to 3000 mm
Radial Seals
Standard Type
Type 103
The standard type of seal features an inserted coil spring and a symmetrical design with rounded sealing lips. Thanks to its high spring forces, it is well-suited for static or mildly dynamic applications.
Type 113
Same as type 103, but equipped with a sharp scraper edge on the inner diameter, it is ideal for use as a rod seal in fluid translational movements. Its design offers high spring forces, making it well-suited for such applications.
Type 123
The standard type of PTFE seal, combined with a sharp scraper edge on the outer diameter, is particularly suited for use as a piston seal in fluid translational movements. Its high spring forces and scraper edge make it well-suited for this application.
Type 103H
This seal is featuring a reinforced back and is specifically designed to withstand high pressures. It’s robust construction and high spring forces make it well-suited for applications requiring pressure resistance.
Type 143
The standard type of PTFE seal, equipped with a retaining flange as an anti-rotation device, is particularly designed to prevent the seal from rotating in rotary applications. Its inclusion of a retaining flange ensures stability and makes it well-suited for such applications.
Special
The encapsulated version of the standard PTFE seal features a coiled spring that is fully encapsulated, resulting in a dead space-free sealing solution. This design is particularly suitable for butterfly valve seals, with its compliance with FDA regulations, making it ideal for applications in the food industry.
V-Spring Type
Type 400
The V-shaped spring-energized PTFE seal, with an inserted V-spring and symmetrical design featuring rounded sealing lips, is well-suited for dynamic applications. Its sealing lips offer high flexibility, while the low friction properties ensure smooth operation.
Type 401
This seal features a sharp scraper edge on the inner diameter. This configuration makes it ideal for use as a rod seal in translational fluid movement applications. Combining the V-shaped spring, sealing lips’ flexibility, and scraper edge enhances its performance and effectiveness.
402
Standard 400 V-type, enhanced with a sharp scraper edge on the outer diameter. This configuration makes it well-suited for a piston seal in translational fluid movement applications. The V-shaped spring provides flexibility to accommodate dynamic movements, while the scraper edge helps maintain effective sealing and prevent contaminants from entering the system.
Type 4VS
This seal has a symmetrical design with chamfered sealing lips on both sides. This design allows for precise and controlled fluid dispensing, making it well-suited for applications that require accurate dosing or metering. The symmetrical construction and chamfered lips ensure efficient sealing performance and minimal fluid leakage.
Type 414
The standard V-shaped spring-energized PTFE seal, equipped with a retaining flange as an anti-rotation device, particularly suitable for rotary applications. The retaining flange ensures the seal remains in place and prevents unwanted rotation during operation.
Type 4FM
The standard V-shaped spring-energized PTFE seal, but further enhanced with an encapsulated spring chamber using an FDA-approved silicone sealing compound.
This design ensures low dead space, reducing the areas or gaps where residues can accumulate or become trapped. The encapsulation eliminates potential areas for product buildup or contamination, maintaining hygiene standards. Its compliance with FDA regulations and the use of a reliable sealing compound make it an excellent choice for food-related applications.
Axial Seals
For Internal Pressure
Type 403
A PTFE seal featuring a symmetrical design with rounded sealing lips, suitable for both dynamic and static applications, incorporates an inserted V-spring.
Type 304
A symmetrical PTFE seal with rounded sealing lips, designed for dynamic and static applications, achieves high pressing force through an inserted coiled spring.
Type 1100
Designed for static to slowly dynamic applications like swivel joints, this seal offers high pressing force and a large pressing stroke, equipped with a full contact spring.
Encapsulated Type
This seal is customized for static to slowly dynamic applications, such as swivel joints, and features high pressing force and a long pressing stroke, enhanced by an inserted steel ring for increased stability.
For External Pressure/Vacuum
Type 404
A symmetrical PTFE seal, designed with rounded sealing lips for both dynamic and static applications, features an inserted V-spring for enhanced performance.
Type 314
A symmetrical PTFE seal, designed with rounded sealing lips for both dynamic and static applications, features an inserted V-spring for enhanced performance.
Type 1101
Designed for static to slow dynamic applications like swivel joints, this seal offers high pressing force and a large pressing stroke, complemented by a full contact spring.
PTFE Seal Jacket Materials
PTFE Seal Operation Range
Spring Energizer Preload Elements
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