Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
NBR VA Seal: Ideal for Medium-Temp Applications
Compatible with Mineral Oils
Forever Seals’ VA NBR seal is engineered to excel in oil-rich environments, leveraging nitrile rubber’s (NBR) inherent resistance to fuels, lubricants, and mineral oils. Its VA lip design ensures a tight, pressure-responsive seal, adapting to dynamic motions like reciprocation and low-speed rotation to prevent leaks.
Optimized for medium-temperature operations (0℃–120℃), this seal balances flexibility and durability, making it a reliable choice for general industrial use. Forever Seals prioritizes precision in manufacturing, ensuring consistent dimensions for easy installation across hydraulic pumps, gearboxes, and fuel systems.
Beyond performance, it offers cost-effectiveness, reducing maintenance needs without compromising on sealing integrity. Trust Forever Seals to deliver a VA NBR solution that combines practicality and reliability for everyday industrial challenges.
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design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Product Advantages
Forever Seals'VA NBR seal stands out with NBR (nitrile butadiene rubber) as its core material, boasting excellent oil resistance—a key trait for systems handling fuels, lubricants, and mineral oils. Its VA lip structure ensures reliable sealing under dynamic conditions, adapting to low-speed rotation and reciprocating motions with minimal leakage risk.
Balancing performance and cost, this seal offers strong durability in medium-temperature environments (0℃–120℃) and maintains flexibility for easy installation. Compared to premium materials like FKM, it provides a cost-effective solution for general industrial applications without sacrificing core sealing capabilities.
Working Principle
The VA NBR seal operates on a pressure-actuated mechanism, a design signature of Forever Seals. Its lip features an initial interference fit with the mating surface, creating a baseline seal. When system pressure increases, fluid forces the lip to expand outward, enhancing contact pressure with the sealing surface—ensuring tighter sealing as pressure rises.
NBR's inherent elasticity, paired with the VA structure, maintains consistent lip contact even with minor surface irregularities or temperature fluctuations, making it reliable for both static and low-speed dynamic applications.
Product Details
Material Quality: Forever Seals uses high-grade NBR compound, tested for oil resistance and tensile strength to meet industrial standards (ISO 9001 certified).
Design Precision: The VA lip is precision-machined for uniform thickness, ensuring balanced pressure distribution across the sealing surface.
Customization: Available in various diameters (10mm–200mm) and hardness levels (60–80 Shore A) to fit specific equipment, with tight tolerances (±0.1mm) for seamless integration.
Durability Features: Added anti-abrasion additives extend service life in abrasive fluid environments, a detail prioritized by Forever Seals'engineering team.
![NBR VA Seal: Ideal for Medium-Temp Applications 10]()
Application Range
Ideal for:
Automotive systems: Fuel lines, oil pumps, and transmission seals.
Industrial machinery: Hydraulic cylinders, gearboxes, and lubrication systems.
General fluid handling: Pumps, valves, and reservoirs using mineral oils or fuels.
Low-temperature stability: Suitable for indoor or climate-controlled industrial settings.
FAQ
Q: Can it resist synthetic oils?
A: Forever Seals’ VA NBR seal works well with most mineral oils but has limited resistance to strong synthetic oils—contact our team for application-specific advice.
Q: What’s the maximum operating speed?
A: It performs reliably at rotational speeds up to 5 m/s, ideal for low-to-medium speed industrial equipment.
Q: How to store unused seals?
A: Store in a cool (15–25℃), dry place away from direct sunlight; shelf life is 3–5 years under proper conditions.
Company Strengths
Forever Seals brings 20+ years of expertise in sealing solutions, with a focus on tailored industrial products. Our VA NBR seals are manufactured in ISO 9001-certified facilities, ensuring consistent quality.
We offer custom engineering support to match specific equipment requirements, backed by a global distribution network for timely delivery. Our commitment to cost-effectiveness and reliability makes Forever Seals a trusted partner for industrial sealing needs.
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