Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
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FOREVER SEALS specializes in the research, development, production and sales of industrial sealing parts, providing a diverse product line including ISO-standard products and customized sealing solutions. We use high-performance materials such as PTFE, FKM, etc. to ensure that seals work stably in extreme temperature and pressure ranges (-200°C to 300°C, vacuum to 100MPa+). Our products cover O-rings, hydraulic seals, pneumatic seals, etc., and are widely used in chemical equipment, engineering machinery, automobile manufacturing and other industries. At the same time, we provide OEM/ODM services from design to production to meet the personalized needs of customers.
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Forever Seals Glass Fiber Filled Modified PTFE Spring Energized Seal adopts high-performance PTFE filled with glass fiber, matched with high-elastic stainless steel spring. It features high mechanical strength, excellent compression resistance, creep resistance and extreme wear resistance. The integrated spring structure provides lasting preload to automatically compensate assembly gaps, abrasion and thermal deformation. It maintains stable sealing under high load, high pressure, reciprocating rotation and harsh abrasive medium environments, ideal for heavy-duty industrial equipment.
Forever Seals Blue Modified PTFE Spring Energized Seal adopts specially modified blue filled PTFE material matched with high-elastic metal spring. It delivers higher hardness, outstanding wear resistance, creep resistance and stable low-friction performance. The built-in spring provides continuous elastic compensation to adapt to assembly gaps, pressure changes and micro deformation. It operates steadily in high-pressure, reciprocating, rotating and corrosive medium environments, delivering lasting and reliable sealing effect for precision hydraulic and fluid equipment.
S8 seal is a high-performance integrated compact composite seal originally from Freudenberg Merkel, widely applied as piston rod seal and piston seal for medium and low pressure hydraulic cylinders.
Forever Seals Multi-Type Spring Energized PTFE Seal is constructed with high-performance PTFE body and imported elastic metal spring. It delivers low friction, outstanding wear resistance, wide temperature tolerance and strong chemical inertness. The built-in spring provides lasting elastic preload to compensate for assembly gaps, shaft wear and thermal expansion deformation. It remains stably sealed under variable pressure, reciprocating and rotating motion, perfectly adapting to harsh medium and high-pressure working environments.
Forever Seals Stainless Steel Framework PTFE Composite Oil Seal 3912883156 adopts integrated design of stainless steel outer frame and PTFE sealing lip. It features ultra-low friction, self-lubrication, high and low temperature resistance, and excellent chemical inertness. It is not easy to age or deform when facing strong acid, alkali, oil and various corrosive media. With high structural rigidity and precise fit, it perfectly adapts to high-speed rotating shafts and harsh industrial working conditions, effectively preventing oil leakage, dust and chemical medium infiltration.
TC4P high pressure double lip oil seal with spring, metal skeleton design for power steering rack and hydraulic cylinder. NBR/HNBR/FKM available, high pressure resistant, wearproof and dustproof.
Fluorine rubber gaskets are high-performance sealing parts made of FKM/Viton material. They feature excellent high temperature resistance, oil resistance and chemical corrosion resistance, widely known as the king of rubber seals, commonly used in petrochemical, automotive, hydraulic machinery and other harsh working conditions.
Forever Seals FKM UL94 Flame Retardant O-Ring is designed for high-temperature, flammable and high-risk industrial environments. Made of high-grade FKM fluororubber with professional UL94 flame retardant formula, it features excellent self-extinguishing, heat resistance and chemical stability. It can effectively inhibit flame spreading and resist oil and medium corrosion, delivering stable elastic performance and accurate dimensions to provide safe, long-term sealing protection for fire prevention equipment.
Forever Seals FKM90 AED O-Ring is a high-performance sealing component engineered for extreme industrial scenarios. Featuring 90 Shore A hardness FKM fluororubber with AED reinforcement, it excels in anti-burst and anti-tear capabilities, resisting pressure spikes up to 50 MPa and repeated mechanical stress. Compatible with oils, fuels, and most chemicals, it operates reliably from -20℃ to 200℃, with precise sizing (ISO 3601-1 compliant) and low compression set, delivering long-lasting sealing for critical equipment.
PU Polyurethane O-rings feature high wear resistance, excellent anti-extrusion performance and high pressure resistance. Widely used for hydraulic cylinders, construction machinery and heavy duty hydraulic sealing systems.
A rotary spring-energized seal is a dynamic rotary sealing solution where a metallic or polymer spring continuously presses a flexible sealing element (commonly PTFE or filled PTFE) against a rotating shaft to maintain tight contact under changing pressure, speed, and alignment. This design delivers high-performance sealing with low friction and wear, excellent chemical and temperature resistance, and long service life for demanding applications such as pumps, compressors, mixers, and subsea equipment.
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