Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Yellow Polyurethane Energized Sealing Ring for Industrial Applications
Suitable for Drilling Mud Pumps, Cementing Trucks & Industrial Valves Sealing
The Yellow Polyurethane Spring Energized Seal is a high-performance industrial sealing solution tailored for demanding operational environments. It integrates a durable yellow polyurethane (PU) U-shaped jacket—boasting excellent wear resistance, hydrolysis resistance, and high tensile strength—with an internal energizing spring, forming a robust structure that ensures reliable sealing.
With an operating temperature range of -45℃ to 110℃, the seal performs stably across diverse conditions, effectively withstanding high/low pressure and compensating for minor eccentricities in metal mating surfaces via the spring’s continuous actuation force, even as the seal lip wears over time.
Ideal for high-frequency reciprocating or rotating motions, it finds wide application in petrochemical equipment (e.g., drilling mud pumps, cementing trucks), automotive manufacturing, and construction machinery, delivering exceptional air tightness to prevent fluid or gas leakage and extend equipment service life.
5.0
design customization
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1. Product Advantages
Forever Seals’ Yellow Polyurethane Spring Energized Seal stands out with four core strengths:
Exceptional Durability: Made of high-grade polyurethane, it offers 30% better wear resistance than standard seals, enduring high-frequency reciprocating/rotating motion without deformation. Its hydrolysis resistance ensures stability in moist or fluid-rich environments, while high tensile strength (≥25 MPa) withstands extreme pressure.
Wide Temperature Adaptability: Operates reliably from -45℃ to 110℃, suitable for both cold industrial storage and high-heat equipment like engine systems.
Superior Sealing Performance: The internal spring provides continuous actuation force, compensating for minor metal surface eccentricities (up to 0.2mm) and lip wear, maintaining air tightness (leakage rate ≤0.1 cc/min) in high/low pressure scenarios (0-50 MPa).
Easy Identification: The bright yellow jacket allows quick visual inspection and inventory management, reducing maintenance time.
2. Working Principle
This seal adopts a “U-shaped PU jacket + internal energizing spring” design. When installed, the polyurethane jacket’s lip adheres tightly to the mating surface under initial pressure. As equipment operates, the internal spring exerts constant force: it offsets wear on the seal lip (extending service life by 50% vs. non-spring seals) and corrects slight misalignments of metal parts, ensuring no gaps for fluid/gas leakage. The polyurethane’s elasticity further enhances the seal’s conformity to uneven surfaces, forming a robust barrier.
3. Product Details
Material Specifications: Polyurethane (Shore hardness: 90±5 A); internal spring (stainless steel 304 for corrosion resistance).
Dimensions: Customizable for diameters 10mm-500mm; standard thickness ranges from 2mm-8mm (meets ISO 3601-1 standards).
Quality Certifications: Passed SGS testing for wear resistance and temperature stability; compliant with RoHS and REACH regulations.
Packaging: Moisture-proof plastic bags + cartons (labeled with product model, batch number, and shelf life: 24 months).
4. Application Range
Tailored for industries requiring high-reliability sealing:
Petrochemical: Drilling mud pumps, cementing trucks, fracturing equipment (seals oil, mud, and chemical fluids).
Automotive: Engine crankshafts, transmission systems (resists engine oil and high temperatures).
Construction: Concrete mixers, hydraulic cylinders (withstands dust and hydraulic oil).
Aerospace & Electronics: Precision valves and air compressors (ensures ultra-low leakage for compressed air).
5. FAQ
Q1: Can the seal be used with corrosive fluids?
A: Yes—stainless steel 304 springs resist mild corrosion; for strong acids/alkalis, contact us for custom fluoropolymer-coated polyurethane options.
Q2: How often should the seal be replaced?
A: Under normal use (8-hour daily operation), service life is 12-18 months; replace earlier if visible wear (e.g., lip cracks) or leakage occurs.
Q3: Do you offer technical support for installation?
A: Forever Seals provides a free installation guide (with 3D diagrams) and 24/7 online support; on-site training is available for bulk orders.
6. Forever Seals’ Selling Points
Customization Capability: R&D team delivers tailored solutions within 7 days (e.g., special hardness, size, or material modifications) to meet unique client needs.
Manufacturing Strength: 10,000㎡ production base with automated molding machines, ensuring consistent quality and 100,000-unit monthly output.
After-Sales Guarantee: 12-month warranty (free replacement for defects caused by material or manufacturing issues); global logistics partners (DHL, FedEx) ensure 3-7 day delivery for international orders.
Sustainable Commitment: Uses eco-friendly polyurethane (recyclable materials) and energy-efficient production processes, aligning with global green initiatives.
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