| Customization: | Available |
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| Material: | Customized |
| Application: | Multipurpose Use |
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| Material | Nitrile Butadiene Rubber (NBR) | Fluororubber (FKM) |
| Color | Red, Black, Blue, etc. Customized |
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| Size | Standard&Customized | |
| Density | Typically 0.95-1.25 g/cm³, depending on filler content (common grades: ~1.0-1.1 g/cm³). |
Usually 1.8-2.0 g/cm³ (high density due to fluorine content). |
| Hardness | Typically 40 - 90 Shore A, with common industrial grades at 60 - 80 Shore A | Usually 50 - 90 Shore A, with high - performance grades often at 70 - 85 Shore A. |
| Temperature | -40°C to +100°C (-40°F to +212°F) |
-20°C to +200°C (-4°F to +392°F) |
| Tolerance | Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
| Advantages | 1. Excellent resistance to mineral oils, fuels, and hydraulic fluids. 2.Good mechanical strength and abrasion resistance. 3.Cost-effective and widely available. 4.Versatile for moderate temperature applications (-40°C to +120°C). |
1.Exceptional resistance to high temperatures (+200°C, up to +230°C for premium grades). 2.Outstanding chemical resistance to acids, solvents, and fuels. 3.High durability in aggressive environments (e.g., chemicals, aerospace). 4.Long service life in harsh conditions. |
| Application | Hydraulic systems Fuel systems Automotive engines Oil pumps Other general industrial equipment with oil-based media |
High-temperature environments Automotive engines Turbochargers, gaskets Chemical processing plants Aerospace seals Applications of aggressive chemicals or fuels. |
| Storage& Maintenance | 1. Regular Inspection: Periodically check the O - ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration. This helps to identify potential sealing issues in a timely manner. 2. Timely Replacement: Replace O - rings immediately if they are damaged, deformed, or show signs of aging. A defective O - ring can no longer ensure proper sealing performance, which may lead to leaks and affect the normal operation of the equipment. 3. Exposure Avoidance: Prevent O - rings from being exposed to harsh environments for extended periods. Extreme temperatures, corrosive substances, and strong oxidizing agents can accelerate the degradation of the O - ring material, reducing its service life. |
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| Material | Silicone Rubber (VMQ) | Ethylene Propylene Diene Monomer (EPDM) | Polyurethane Rubber (PU) |
| Color | Red, Black, Blue, etc. Customized |
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| Size | Standard&Customized | ||
| Density | Ranges from 0.96-1.25 g/cm³ (lower density than many rubbers; pure silicone: ~0.96-1.05 g/cm³). | Generally 0.86-0.95 g/cm³ (one of the lowest densities among common rubbers). | Hardness-dependent density: 1.1-1.25 g/cm³ for common grades. |
| Hardness | Ranges from 20 - 80 Shore A, with common medical/food grades at 40 - 60 Shore A. | Generally 40 - 90 Shore A, with standard industrial applications at 50 - 80 Shore A. | Hardness spans 60 - 95 Shore A, often used at 70 - 90 Shore A for high - wear resistance. |
| Temperature | -60°C to +200°C (-76°F to +392°F) |
-50°C to +150°C (-58°F to +302°F) |
-30°C to +80°C (-22°F to +176°F) |
| Tolerance | Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
| Advantages | 1.Extreme temperature tolerance (-60°C to +200°C, short-term up to +260°C). 2.Biocompatible and non-toxic, suitable for medical and food applications. 3.High flexibility at low temperatures. Good electrical insulation properties. |
1.Excellent resistance to ozone, UV radiation, and weathering. 2.Superior water and steam resistance. 3.Low density and good electrical insulation. 4.Cost-effective for outdoor and marine applications. |
1. Extremely high abrasion and tear resistance. 2.High load-bearing capacity and mechanical strength. 3.Good resistance to oils and greases (moderate compared to NBR). 4.Ideal for dynamic seals in high-wear environments. |
| Application | Medical devices (e.g., surgical instruments, tubing) Food processing equipment Pharmaceutical machinery High/low-temperature seals (e.g., oven doors, refrigeration systems) Electrical insulation. |
Automotive weatherstripping Window seals Water supply systems Steam pipes Electrical cables Outdoor applications requiring ozone/UV resistance. |
Hydraulic cylinders Pneumatic systems Conveyor belts Mining equipment High-wear applications like piston seals and rod seals |
| Storage& Maintenance | 1. Regular Inspection: Periodically check the O - ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration. This helps to identify potential sealing issues in a timely manner. 2. Timely Replacement: Replace O - rings immediately if they are damaged, deformed, or show signs of aging. A defective O - ring can no longer ensure proper sealing performance, which may lead to leaks and affect the normal operation of the equipment. 3. Exposure Avoidance: Prevent O - rings from being exposed to harsh environments for extended periods. Extreme temperatures, corrosive substances, and strong oxidizing agents can accelerate the degradation of the O - ring material, reducing its service life. |
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| Material | Natural Rubber (NR) | Neoprene (CR) | Polytetrafluoroethylene (PTFE) |
| Color | Red, Black, Blue, etc. Customized |
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| Size | Standard&Customized | ||
| Density | Typically 0.91-0.93 g/cm³ (low density due to hydrocarbon structure). | Usually 1.2-1.35 g/cm³ (higher density than NR due to chlorine content). | Approximately 2.1-2.3 g/cm³ (very high density, characteristic of fluoropolymers). |
| Hardness | Typically 30 - 70 Shore A, with common grades around 50 - 60 Shore A. | Usually 40 - 80 Shore A, with typical values at 50 - 70 Shore A. | Measured by Shore D durometer, approximately 50 - 65 Shore D (harder than rubber, more rigid). |
| Temperature | -50°C to +80°C (-58°F to +176°F) |
-30°C to +130°C (-22°F to +266°F) |
-200°C to +260°C (-328°F to +500°F) |
| Tolerance | Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm |
Typically tighter tolerances due to machining accuracy: - CSD: ±0.02-0.05 mm - ID: ±0.05-0.10 mm |
| Advantages | 1. High elasticity and resilience at room temperature. 2.Low permanent set (excellent recovery from deformation). 3.Cost-effective for non-critical, low-stress applications. 4.Good sealing performance in water-based systems. |
1. Good resistance to ozone, weathering, and flame retardancy. 2.Moderate oil and solvent resistance. Flexible and durable in outdoor or industrial settings. 3.Commonly used for general-purpose seals requiring stability. |
1. Unmatched chemical resistance to almost all corrosive media. 2. Extremely wide temperature range (-200°C to +260°C). 3. Low friction coefficient, suitable for high-speed applications. 4. Non-stick surface reduces adhesion to mating materials. 5. Often used as a coating or composite for enhanced performance. |
| Application | General-purpose seals (e.g., water taps, low-pressure systems) Latex products Agricultural machinery Non-critical applications without oil/chemical exposure |
Wet environments (e.g., swimming pool equipment Marine seals Industrial coatings Cable jackets Applications requiring flame resistance or ozone resistance |
High-temperature chemical pipelines Aerospace components Semiconductor manufacturing Extreme environments (e.g., cryogenic tanks, furnace seals) Often used as backup rings or in composite seals |
| Storage& Maintenance | 1. Regular Inspection: Periodically check the O - ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration. This helps to identify potential sealing issues in a timely manner. 2. Timely Replacement: Replace O - rings immediately if they are damaged, deformed, or show signs of aging. A defective O - ring can no longer ensure proper sealing performance, which may lead to leaks and affect the normal operation of the equipment. 3. Exposure Avoidance: Prevent O - rings from being exposed to harsh environments for extended periods. Extreme temperatures, corrosive substances, and strong oxidizing agents can accelerate the degradation of the O - ring material, reducing its service life. |
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Shanghai DZD Seals Technology Co., Ltd. is a trailblazing enterprise, with seasoned experts who have dedicated over a decade to the rubber sealing industry. We specialize in the innovative design, production, sales, and service of seals, offering components tailored to the precise demands of industrial power, transmission, and leak-proof applications. Driven by creative R&D, we deliver custom solutions that significantly enhance customer products. To meet ever-evolving performance standards, DZD invests substantially in pioneering new materials, sealing components, and systems, ensuring we exceed customer expectations.
DZD's diverse product line includes industry-leading sealing rings for the hydraulic, pneumatic, valve, automotive, engineering machinery, and petroleum sectors. We offer bespoke solutions tailored to unique customer needs, providing advanced and efficient sealing solutions across various industries. Our sealing products are integral to furniture, home appliances, hydraulic and pneumatic systems, engineering machinery, automotive pumps and valves, motors, and beyond.
DZD is committed to staying ahead of industry trends, offering unparalleled products, competitive prices, and exceptional services. We are eager to assist you at any stage of your growth journey as we strive together to lead the industry.
Q1: Do you support OEM or ODM?
A: Yes, we are factory, and we have a professional team can customize color, material and sizes.
Q2: Do you supply samples?
A: Yes, for standard materials and sizes (not included freight).
Q3:What after-sales service do you have?
A: We can provide technical support for any problems in use.
Q4: What is your packaging?
A: The goods usually packing in PE bags inside and carton box outside. Special packing method can be accepted when needed.
Q5: What is your payment terms?
A: Payment ≤$5000, 100%T/T in advance, payment >$5000, 50%T/T in advance, balance before shipping. Please feel free to ask if you have any questions. We're happy to provide any information or help.
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