nitrile rubber o rings Safety Certifications
Nitrile rubber (NBR) O-rings are widely used due to their resistance to oils, fuels, and other chemicals. Safety and reliability are paramount for these components, especially in critical industrial applications. Here are key safety certifications and standards related to nitrile rubber O-rings:
1. ISO Certification:
– ISO 3601: This standard covers the dimensions and quality acceptance criteria for O-rings. It ensures that the O-rings meet high-quality standards for international usage.
– ISO 9001: While not specific to O-rings, this certification for Quality Management Systems (QMS) ensures that manufacturers adhere to stringent quality controls and continuous improvement processes.
2. SAE International (formerly Society of Automotive Engineers):
– SAE J200: This classification system helps identify the properties of rubber materials. NBR O-rings classified under this standard meet specific physical and chemical properties, ensuring material consistency and performance.
3. ASTM International (American Society for Testing and Materials):
– ASTM D1418: This standard dictates the nomenclature and classification of rubber materials, including nitrile rubber.
– ASTM D2000: This standard classifies rubber materials based on their properties. NBR materials falling under this standard are tested for various attributes like hardness, tensile strength, and compression set.
4. FDA Compliance:
– For applications related to food, pharmaceuticals, or medical devices, nitrile rubber O-rings may need to comply with FDA 21 CFR 177.2600. This ensures the rubber is safe for repeated food contact.
5. NSF (National Sanitation Foundation) Certification:
– NSF/ANSI 61: This certification is crucial for O-rings used in potable water systems, ensuring they do not introduce contaminants into drinking water.
6. REACH and RoHS Compliance:
– REACH (Registration, Evaluation, Authorization and Restriction of Chemicals): Ensures that NBR O-rings do not contain harmful chemicals above specified limits within the EU.
– RoHS (Restriction of Hazardous Substances): Ensures O-rings are free from substances like lead, mercury, and cadmium, important for electronic and electrical applications.
These certifications and standards help ensure that nitrile rubber O-rings are reliable, safe, and fit for purpose across various industries and applications.
List Reference Technical Parameters of “nitrile rubber o rings”
Nitrile rubber, also known as Buna-N or NBR, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. Nitrile rubber O-rings offer a balance of properties making them suitable for various applications. Here are some key technical parameters:
1. Hardness:
– Measured in Shore A scale.
– Typically ranges from 40 to 90 Shore A.
– Standard values are 70 and 90 Shore A.
2. Temperature Range:
– Operating range: -30°C to +120°C (-22°F to +248°F).
– Special grades can extend this range from -40°C to +135°C (-40°F to +275°F).
3. Chemical Resistance:
– Good resistance to petroleum-based oils and fuels.
– Moderate resistance to acids and bases.
– Poor resistance to ozone, ketones, and chlorinated hydrocarbons.
4. Tensile Strength:
– Typically between 10 to 20 MPa.
– Reflects material’s capability to withstand tension without breaking.
5. Elongation at Break:
– Varies between 300% and 600%.
– Indicates flexibility and stretchability.
6. Compression Set:
– Relates to the permanent deformation post-compression.
– Typical values range from 15% to 30% at 70 hours/100°C (212°F).
7. Hardness Change:
– NBR O-rings should exhibit minimal changes in hardness after prolonged exposure to heat and chemicals.
8. Aging Properties:
– Retains properties well in environments without direct ozone or sunlight.
– Special additives can enhance resistance to ozone and aging.
9. Permeability:
– Low gas permeability, making them suitable for sealing air and gas.
10. Sections and Sizes:
– Available in a wide range of standard AS568, BS4518, and metric sizes.
– Custom sizes are also producible based on application requirements.
These parameters facilitate selection for specific industrial requirements like automotive, aerospace, oil and gas, and general-purpose sealing applications. Nitrile rubber O-rings are versatile, cost-effective, and easy to mold, making them one of the most common sealing materials.
List Product features of “nitrile rubber o rings”
Nitrile rubber O-rings, commonly referred to as Buna-N O-rings, are versatile sealing components extensively used across various industries. Here are their key product features:
1. Material Composition:
– Mainly composed of acrylonitrile and butadiene, providing a balance between flexibility and durability.
2. Temperature Range:
– Suitable for operating temperatures from -40°C to 120°C (-40°F to 248°F), making them versatile for varied environmental conditions.
3. Oil and Fuel Resistance:
– Outstanding resistance to petroleum-based oils, hydraulic fluids, solvents, and fuel, making them ideal for automotive and industrial applications.
4. Abrasion and Tear Resistance:
– High resistance to wear and tear, ensuring long service life in dynamic applications.
5. Compression Set:
– Low compression set, maintaining seal integrity over extended periods without significant deformation.
6. Chemical Resistance:
– Good resistance to water, alkalis, and many acids, though not suitable for highly polar solvents like ketones and ozone.
7. Hardness Options:
– Available in various durometer ratings (typically from 40 to 90 Shore A), allowing customization according to specific application needs.
8. Cost-Effective:
– Generally more affordable compared to other synthetic elastomers, offering economic advantage without compromising performance.
9. Versatile Applications:
– Widely used in automotive, aerospace, oil and gas, food and beverage, and general industrial sectors.
10. Sizes and Standards:
– Manufactured in a range of sizes and conform to standard specifications such as AS568, ISO 3601, and Metric sizes, ensuring compatibility and ease of replacement.
These features make nitrile rubber O-rings a popular choice for sealing solutions in a variety of mechanical and industrial applications.
List Various Types of “nitrile rubber o rings”
Nitrile rubber O-rings, made from nitrile butadiene rubber (NBR), are widely used due to their resistance to oils, fuels, and other chemicals. Here are various types of nitrile rubber O-rings:
1. Standard Nitrile O-Rings:
– General-Purpose NBR O-Rings: Commonly used for oil and fuel resistance, suitable for a wide temperature range.
– Hydrogenated NBR (HNBR) O-Rings: Enhanced resistance to heat, ozone, and long-term wear.
2. Specialty NBR O-Rings:
– Low-Temperature NBR O-Rings: Engineered for superior flexibility at lower temperatures.
– High-Temperature NBR O-Rings: Formulated to withstand higher temperatures while maintaining chemical resistance.
– Food-Grade NBR O-Rings: Compliant with food safety standards, used in food processing and packaging.
3. Back-Up Rings:
– NBR Back-Up Rings: Used to prevent extrusion and to support O-Rings in high-pressure applications.
4. Compounded NBR O-Rings:
– Fuel-Resistant O-Rings: Specifically designed for compatibility with aggressive fuels and chemicals like ethanol-blended gasoline.
– Water-Resistant O-Rings: Optimized for applications in aqueous environments, providing superior water resistance.
5. Specially Coated O-Rings:
– PTFE-Coated NBR O-Rings: Provides improved chemical resistance and reduces friction.
6. Automotive Grade O-Rings:
– Automotive NBR O-Rings: Used in automotive applications for fuel systems, oil seals, gaskets, and transmission systems.
Each type of nitrile rubber O-ring serves specific requirements, ensuring reliable performance across various industries such as automotive, aerospace, food and beverage, and general industrial applications.
List Application of “nitrile rubber o rings”
Nitrile rubber O-rings, known for their versatility and durability, find widespread applications across various industries due to their excellent resistance to oils, fuels, and certain chemicals. Here are some key applications:
1. Automotive Industry: Nitrile rubber O-rings are frequently used in fuel systems, oil-sealing applications, and transmission systems. Their resistance to petroleum-based oils and fuels makes them ideal for sealing fuel injectors, carburetors, and oil filter systems.
2. Aerospace: These O-rings are employed in aerospace hydraulic systems, fuel handling, and lubrication systems. Their ability to withstand high pressures and variable temperatures contributes to the reliability and safety of aerospace components.
3. Industrial Machinery: Used extensively in hydraulic and pneumatic systems, nitrile rubber O-rings are critical for preventing leaks in industrial machinery. They are commonly found in pumps, cylinders, and valve seals.
4. Oil and Gas Sector: The oil and gas industry utilizes nitrile rubber O-rings in drilling equipment, pipelines, and refineries. Their durability against crude oil and natural gas ensures long-lasting, leak-free operations.
5. Medical Devices: In the medical field, nitrile O-rings are used in devices such as pumps, valves, and fluid transfer systems. Their compatibility with various sterilization processes makes them suitable for healthcare applications.
6. Food and Beverage Industry: FDA-approved nitrile O-rings are utilized in food processing equipment, ensuring that seals remain intact while being resistant to oils and fats that are common in food products.
7. Household Appliances: They are used in products like washing machines, dishwashers, and refrigeration systems to provide reliable sealing and to prevent the ingress of moisture and contaminants.
8. Water Treatment Systems: Nitrile O-rings play a role in sealing components within water filtration and treatment systems, ensuring that the systems run efficiently and without leaks.
By providing strong resistance to a range of chemicals, temperatures, and pressures, nitrile rubber O-rings are indispensable sealing solutions in many applications, ensuring reliability and efficiency.
List Buyer Types of “nitrile rubber o rings”
Certainly! Here are the primary buyer types for nitrile rubber O-rings:
1. Automotive Manufacturers:
– Components: Engines, fuel systems, brake systems.
– Usage: O-rings ensure leak-proof sealing under high-pressure and high-temperature conditions.
2. Industrial Equipment Manufacturers:
– Components: Hydraulic systems, pneumatic systems.
– Usage: Provides reliable sealing in machinery and equipment subjected to varying pressures and temperatures.
3. Aerospace Sector:
– Components: Aircraft engines, landing gear systems, fuel systems.
– Usage: Demands high-performance O-rings for extreme conditions, durability, and reliability.
4. Medical Device Manufacturers:
– Components: Syringes, infusion pumps, surgical instruments.
– Usage: O-rings provide leak-proof sealing while being resistant to various chemicals and fluids.
5. Oil and Gas Industry:
– Components: Drilling equipment, valves, piping systems.
– Usage: Requires nitrile O-rings that can withstand harsh environments, high pressures, and various hydrocarbons.
6. Food and Beverage Industry:
– Components: Processing equipment, pumps, valves.
– Usage: Ensures that O-rings used are compliant with food safety standards and resistant to cleaning chemicals.
7. Chemical Processing Plants:
– Components: Pipes, joint connections, flange connections.
– Usage: Needs chemically resistant O-rings to seal off different chemicals and solvents.
8. Water Treatment Facilities:
– Components: Filters, pumps, pipelines.
– Usage: Uses nitrile O-rings for sealing applications in water filtration and purification systems.
9. Consumer Goods Manufacturers:
– Components: Home appliances, electronics.
– Usage: Utilizes O-rings in various small-size applications requiring durable sealing solutions.
These buyer types leverage nitrile rubber O-rings for their excellent resistance to oils, fuels, and a broad temperature range, making them a preferred choice across diverse industries.
List “nitrile rubber o rings” Project Types for Different Industries
Nitrile rubber O-rings are versatile components used across a variety of industries. Different project types employ these O-rings due to their excellent resistance to oils, fuels, and other chemicals. Here’s a quick overview of project types utilizing nitrile rubber O-rings:
Automotive Industry
Engine Systems
– Sealing fuel injectors and fuel pumps.
– Gaskets for oil systems to prevent leaks.
Transmission and Drive Train
– Sealing fluids within transmission systems.
– Preventing oil leakage in differentials.
Aerospace Industry
Fuel Systems
– Sealing components in fuel delivery systems, ensuring no fuel leaks.
Hydraulic Systems
– Used in hydraulic actuators and valves, ensuring fluid integrity under high pressure.
Oil & Gas Industry
Pipeline Systems
– Sealing connections between pipe segments.
– Ensuring integrity in high-pressure and high-temperature environments.
Drilling Equipment
– Used in downhole tools and drilling rigs for dependable sealing under extreme conditions.
Medical Devices
Pharmaceutical Processing
– Utilized in seals for processing equipment dealing with various chemical compounds.
Therapeutic Devices
– Seals in devices exposed to oil-based or solvent-based treatments.
Food & Beverage Industry
Bottling and Packaging Equipment
– Used in machinery handling oils and grease to ensure no contamination.
Food Processing
– Seals in systems that require resistance to fats and oils.
Industrial Machinery
Hydraulic Systems
– Essential in hydraulic cylinders and pumps to maintain fluid control.
Pneumatic Systems
– Used in air compressors and pneumatic tools, ensuring no oil contamination.
Marine Industry
Propulsion Systems
– Sealing oil in engines and gearboxes.
Hydraulic Systems
– Preventing leaks in hydraulic control and steering systems.
HVAC Industry
Refrigeration Systems
– Sealing refrigerant fluids to ensure system efficiency.
Heating Systems
– Preventing leaks in oil-based heating systems.
Each project type benefits from the specific properties of nitrile rubber O-rings, like their robustness against oils and chemicals, making them indispensable in many critical applications across various industries.
nitrile rubber o rings Accessories Upgrades and Custom Manufacturing Options
Nitrile rubber O-rings, commonly used for their excellent resistance to oil, fuel, and other chemicals, are pivotal components in various industrial applications. They serve as reliable seals in automotive, aerospace, marine, and manufacturing industries. To further enhance their utility, several accessories, upgrades, and custom manufacturing options are available.
Accessories:
– Lubricants and Grease: Specialized lubricants can extend the lifespan of nitrile O-rings by reducing friction and wear.
– Retaining Rings: These are used to keep the O-rings in place, ensuring a proper seal and preventing dislodgment during operation.
– O-ring Kits: Pre-sorted kits with various sizes offer convenient storage and quick access for maintenance and emergency repairs.
Upgrades:
– Enhanced Temperature Resistance: Standard nitrile rubber operates effectively between -30°C and 120°C. For applications demanding a broader temperature range, hydrogenated nitrile butadiene rubber (HNBR) can be employed.
– Improved Chemical Compatibility: Coatings or blends that include fluorocarbon or silicone can be applied to provide increased resistance to aggressive chemicals and extended service life.
– Anti-static Properties: For electronics and explosive environments, nitrile O-rings can be modified with anti-static properties to prevent electrostatic discharge.
Custom Manufacturing:
– Tailored Sizes and Shapes: Custom molds enable the creation of O-rings in non-standard sizes and complex shapes to fit specific requirements.
– Material Compounds: Depending on the application, O-rings can be manufactured with specially formulated nitrile compounds that offer unique performance characteristics, such as enhanced hardness or flexibility.
– Color Coding: Custom color coding can be used for easy identification and error reduction during assembly and maintenance.
These accessories, upgrades, and custom manufacturing options ensure that nitrile rubber O-rings can be adapted to meet the most demanding application requirements, improving performance, reliability, and longevity. Whether for standard maintenance or specialized needs, the versatility of nitrile O-rings makes them an indispensable component in industrial sealing solutions.
List Quality Control and The Manufacturing Process of “nitrile rubber o rings”
Quality Control and Manufacturing Process of Nitrile Rubber O-Rings
Manufacturing Process:
1. Raw Material Selection: The process begins with selecting high-quality nitrile rubber, known for its resistance to oils, fuels, and certain chemicals.
2. Compounding: The raw nitrile rubber is mixed with various additives like curing agents, fillers, and plasticizers in specific proportions to enhance its properties.
3. Mixing: The compounded rubber is processed in mixers, such as Banbury mixers or two-roll mills, to ensure uniform distribution of additives.
4. Preforming: The compounded rubber is shaped into preforms, which are the preliminary shapes resembling biscuits or cylinders, suitable for feeding into molding machines.
5. Molding: Preforms are placed into compression or injection molding machines where they are shaped into O-rings. The mold cavities define the final size and shape of the O-rings.
6. Curing/Vulcanization: The molded O-rings undergo a curing process under heat and pressure, which cross-links the rubber molecules, enhancing their elasticity, strength, and durability.
7. Deflashing/Finishing: Post-molding, O-rings are deflashed to remove excess material using mechanical or cryogenic methods to ensure smooth, finished edges.
8. Post-Curing (Optional): Depending on the application, O-rings may undergo additional curing processes to further stabilize the rubber properties.
Quality Control:
1. Raw Material Testing: Initial inspection and testing of raw nitrile rubber to ensure it meets specified quality standards (e.g., tensile strength, elongation).
2. In-Process Inspection: Monitoring and inspection during the mixing and molding processes, including verifying temperature, pressure, and time parameters.
3. Dimensional Checks: Post-molding dimensional inspection to ensure O-rings meet precise size specifications using calipers or coordinate measuring machines (CMM).
4. Physical Properties Testing: Testing for hardness, tensile strength, elasticity, and other mechanical properties to confirm they match design requirements.
5. Surface and Visual Inspection: Checking for surface defects, flash, porosity, or inconsistencies in color and texture.
6. Chemical Resistance Testing: Evaluating the O-rings’ resistance to oils, fuels, and chemicals as per application needs.
7. Batch Testing: Random sampling and rigorous testing of O-rings from each production batch to maintain consistency in quality.
Through these meticulous manufacturing steps and rigorous quality control measures, high-quality nitrile rubber O-rings are produced, ensuring reliability in diverse industrial applications.
How to use “nitrile rubber o rings”
Nitrile rubber O-rings are commonly used as seals in various applications due to their excellent resistance to oils, fuels, and other chemicals. Here’s a guide on how to use them effectively:
Selection
1. Determine the Size: Measure the inner diameter (ID) and cross-sectional diameter (CS) to ensure a proper fit.
2. Choose the Hardness: Shore A hardness typically ranges from 40 to 90. Higher values are for high-pressure applications.
3. Check Chemical Compatibility: Ensure that nitrile rubber is suitable for the fluid it will contact.
Installation
1. Clean the Area: Ensure that the groove or surface area where the O-ring will sit is clean and free of debris.
2. Inspect the O-ring: Check for any visible damage, like cuts or deformities, which could compromise the seal.
3. Lubricate: Using an appropriate lubricant (compatible with both the O-ring material and the fluid it will contact), lightly lubricate the O-ring. This eases installation and reduces friction.
Placement
1. Stretch Gently: If the O-ring needs to stretch over a part, do so evenly to avoid overstressing.
2. Place in Groove: Fit the O-ring into its designated groove without twisting. Ensure it sits evenly.
3. Assembly: Carefully install the mating parts, ensuring the O-ring stays in place and is not pinched or displaced.
Testing
1. Pressure Test: Gradually apply pressure to ensure the seal is functioning properly without leaks.
2. Monitor: Check periodically for any signs of wear, leakage, or material degradation.
Maintenance
1. Regular Inspection: Periodically inspect the O-ring for signs of wear or damage.
2. Replacement: Replace the O-ring as needed to maintain seal integrity.
By following these steps, you can ensure that nitrile rubber O-rings perform effectively in their sealing role, providing reliable service in various applications.
“nitrile rubber o rings” Comparative Analysis
Nitrile rubber, also known as Buna-N or NBR (Nitrile Butadiene Rubber), is a synthetic rubber copolymer of acrylonitrile and butadiene. O-rings made from nitrile rubber are widely utilized in various applications due to their advantageous properties, but they are not without limitations. This comparative analysis delves into the strengths, weaknesses, and situational appropriateness of nitrile rubber O-rings compared to other common O-ring materials such as silicone, Viton (FKM), and EPDM rubber.
Strengths:
1. Excellent Oil and Fuel Resistance: Nitrile rubber O-rings are highly resistant to petroleum-based oils, fuels, and other hydrocarbons, making them ideal for automotive, aerospace, and oil & gas applications.
2. Good Mechanical Properties: They exhibit good compression set, tear, and abrasion resistance, which enhances their durability.
3. Cost-Effective: Nitrile rubber O-rings are relatively inexpensive compared to specialized materials like Viton, making them an economical choice for general-purpose sealing.
Weaknesses:
1. Limited Temperature Range: Nitrile rubber typically operates effectively between -30°C to +100°C (-22°F to +212°F). Beyond this range, performance can degrade, limiting their use in high-temperature environments.
2. Poor Weathering and Ozone Resistance: NBR O-rings can degrade quickly when exposed to weathering, ozone, and UV light, unlike silicone and EPDM O-rings which excel in these conditions.
3. Chemical Resistance Limitations: Nitrile rubber does not perform well against certain chemicals like ketones, esters, and strong acids, where materials like Viton offer superior chemical resistance.
Comparative Situations:
– Silicone O-rings: Preferable in extreme temperatures (-60°C to +225°C) and flexible under cold temperatures, but not suitable for oil and fuel resistance applications.
– Viton O-rings: Best for high temperature and harsh chemical resistance environments but are costlier.
– EPDM O-rings: Ideal for weathering, ozone, and water-based applications but unsuitable for oil and fuel environments.
Conclusion:
Nitrile rubber O-rings stand out for their oil and fuel resistance and cost-effectiveness, making them suitable for many automotive and industrial uses. However, for applications involving extreme temperatures, outdoor exposure, or aggressive chemicals, alternative materials like silicone, Viton, or EPDM may be more appropriate choices.
“nitrile rubber o rings” Warranty and Support
Warranty and Support for Nitrile Rubber O-Rings
We take pride in the quality and performance of our nitrile rubber O-rings, offering robust solutions for various sealing applications. Each O-ring undergoes stringent quality checks to ensure it meets industry standards and exceeds customer expectations.
Warranty:
Our nitrile rubber O-rings come with a 12-month warranty from the date of purchase. This warranty covers any defects in material or workmanship that may affect the performance of the O-rings under normal use. Should you encounter any issues during this period, we will provide a free replacement or a full refund upon validation of the defect.
Warranty Conditions:
1. The warranty is valid only if the product is used according to the specified guidelines and application scenarios.
2. The warranty does not cover damage due to improper installation, misuse, chemical exposure, or extreme environmental conditions beyond the specified temperature and pressure limits.
3. Proof of purchase, including the original receipt or invoice, is required for all warranty claims.
Support:
Our dedicated support team is available to assist with any inquiries or issues you may have regarding our nitrile rubber O-rings. We offer:
– Technical Assistance: Expert advice on choosing the right O-ring for your application.
– Installation Guidance: Step-by-step instructions and best practices to ensure optimal performance.
– Troubleshooting: Help in diagnosing and resolving any problems that may arise during usage.
You can reach our support team through:
– Phone: [Insert phone number]
– Email: [Insert email address]
– Online Chat: Available on our website for real-time assistance.
We are committed to ensuring that your experience with our nitrile rubber O-rings is seamless and satisfactory. Thank you for choosing our products.
List “nitrile rubber o rings” FAQ
Nitrile Rubber O-Rings FAQ
1. What are Nitrile Rubber O-Rings?
Nitrile rubber O-rings, also known as NBR or Buna-N, are elastomeric seals made from a synthetic rubber known for its resistance to oil, fuel, and other chemicals.
2. What are the common applications for Nitrile Rubber O-Rings?
These O-rings are widely used in automotive, aerospace, oil and gas, and general industrial sectors due to their excellent resistance to petroleum-based fluids and hydrocarbons.
3. What are the temperature limits for Nitrile Rubber O-Rings?
Nitrile O-rings typically operate within a temperature range of -40°C to 120°C (-40°F to 248°F), making them suitable for most low to moderate temperature environments.
4. What are the main advantages of Nitrile Rubber O-Rings?
They offer excellent resistance to oils, fuels, and other chemicals, good mechanical properties, wear resistance, and are relatively cost-effective.
5. Are there any disadvantages to using Nitrile Rubber O-Rings?
Nitrile rubber is less resistant to ozone, weathering, and aging compared to other elastomers like EPDM or silicone. Therefore, they are not ideal for outdoor applications with constant exposure to the elements.
6. Can Nitrile Rubber O-Rings be used for food and beverage applications?
Standard nitrile is generally not suitable for food contact. However, special FDA-approved grades of nitrile rubber are available for specific food and beverage applications.
7. How do I determine the correct size for Nitrile Rubber O-Rings?
The correct size can be determined using the O-ring’s inside diameter (ID), outside diameter (OD), and cross-sectional diameter (CSD). Consult sizing charts and measurement instructions for precise selection.
8. How should Nitrile Rubber O-Rings be stored?
Store them in a cool, dry, and dark environment, away from direct sunlight, ozone, and harsh chemicals to prolong their life and performance.
9. Can Nitrile Rubber O-Rings be used in high-pressure systems?
Yes, nitrile rubber O-rings can be used in high-pressure applications, but ensure that they are properly backed up by anti-extrusion rings if pressure is extremely high.
10. Are Nitrile Rubber O-Rings resistant to solvents?
They have good resistance to aliphatic hydrocarbons but are not suitable for use with aromatic and chlorinated hydrocarbons, ketones, or esters.
With these key points covered, you can make a more informed decision about using nitrile rubber O-rings for your specific needs.
Top 10 FAQ with answer about nitrile rubber o rings for Buyer Sourcing from China
Certainly! Here are the top 10 frequently asked questions (FAQs) with their answers about sourcing Nitrile Rubber O-Rings from China:
1. What are Nitrile Rubber O-Rings?
– Nitrile Rubber (NBR) O-Rings are sealing devices made from nitrile butadiene rubber, known for its excellent resistance to oil, fuel, and other chemicals.
2. Why source Nitrile Rubber O-Rings from China?
– China offers competitive pricing, large-scale production capabilities, and a wide variety of suppliers who can meet various quality standards.
3. What should I consider when selecting a supplier?
– Check for certifications (ISO, RoHS), production capabilities, quality control processes, minimum order quantities (MOQs), and customer reviews or references.
4. How do I verify the quality of Nitrile Rubber O-Rings?
– Request sample products, evaluate certifications, conduct third-party inspections, and require detailed material and performance test reports.
5. What are the typical applications of Nitrile Rubber O-Rings?
– They are used in automotive, aerospace, oil and gas, plumbing, and various industrial applications due to their resistance to fuels and oils.
6. What are the key properties I should look for?
– Consider shore hardness, temperature range (-40°C to +120°C typical for NBR), tensile strength, and chemical resistance specifications.
7. Can Chinese suppliers customize O-Rings to my specifications?
– Yes, many suppliers in China offer customization in terms of size, color, and compound formulation based on your design requirements.
8. How long does it take to receive an order?
– Lead times vary: typically 2-4 weeks for production plus shipping time. Express shipping options are available for urgent orders.
9. What are the customary shipping methods?
– Commonly used methods include sea freight for bulk orders and air freight or courier services for smaller, urgent orders.
10. How do I handle payment and trade terms?
– Popular payment methods include T/T (bank transfer), L/C (letter of credit), PayPal, and Western Union. Negotiate terms like FOB (Free On Board) or CIF (Cost, Insurance, and Freight) depending on your preference.
By addressing these key FAQs, you’ll be well-prepared to source quality Nitrile Rubber O-Rings from China effectively.
