| Customization: | Available |
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| Type: | Flat Gasket |
| Material: | Rubber |
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Rubber Gaskets
Rubber gaskets are flexible sealing components designed to prevent leakage of fluids or gases by filling the irregularities between mating surfaces. They are widely used in industries such as automotive, aerospace, plumbing, and industrial machinery due to their excellent compression, resilience, and chemical resistance.
Why Rubber Gaskets?
Versatile - Suitable for liquids, gases, and vacuum sealing.
Durable - Resistant to wear, UV, and extreme conditions.
Cost-Effective - Reduce maintenance and downtime.
Rubber Gasket Applications :
Rubber gaskets are essential sealing components used across various industries due to their flexibility, durability, and resistance to environmental factors. Key applications include:
1. Automotive Industry
Engine & Transmission Seals: Prevent oil, coolant, and fuel leaks.
Exhaust Systems: Resist high temperatures and vibrations.
HVAC Seals: Ensure airtight connections in heating and cooling systems.
2. Industrial Machinery
Pumps & Valves: Seal against water, chemicals, and high-pressure fluids.
Hydraulic Systems: Prevent leaks in pressurized lines.
Compressors & Pipe Flanges: Maintain airtight and watertight connections.
3. Electronics & Electrical Equipment
Enclosure Seals (IP Protection): Keep dust and moisture out of sensitive devices.
Shock Absorption: Reduce vibrations in circuit boards and machinery.
4. Plumbing & Water Systems
Pipe Joints & Fittings: Prevent leaks in water and wastewater systems.
Water Heaters & Filters: Ensure pressure-tight seals.
5. Aerospace & Defense
Fuel Systems: Resistant to aviation fluids and extreme temperatures.
Cabin & Door Seals: Maintain pressure and insulation.
6. Medical & Food Processing
Sanitary Gaskets (FDA-approved): Used in pharmaceutical and food-grade equipment.
Sterilization Resistance: Withstand autoclaving (silicone/EPDM).
7. HVAC & Refrigeration
Air Duct Seals: Improve energy efficiency by preventing air leaks.
Refrigerant Lines: Resist chemical degradation.
8. Marine & Offshore
Saltwater Resistance: Protect against corrosion in harsh environments.
Underwater Equipment Seals: Maintain waterproof integrity.
Hardness range: Shore A 10 (gel-like) to 80 (rigid).
Forms available: Solid, sponge (foam), liquid silicone rubber (LSR), and high-consistency rubber (HCR).
Limitations vs. Other Elastomers
Not ideal for:
Petroleum-based oils/fuels (use FKM/FPM instead).
High-pressure abrasive environments (consider polyurethane).
Rubber gasket are available in the following elastomers:
Aflas® or Kalrez®(FFKM)
Acrylate Rubber(ACM)
Butyl Rubber(IIR)
Ethylene-propylene (EPR, EPDM)
Ethylene Acrylate Rubber(AEM)
Fluorocarbon (FKM/FPM)
Fluorosilicone(FVMQ)
Hydrogenated Nitrile (HNBR)
Liquid Silicone Rubber(LSR)
Neoprene Rubber(CR)
Nitrile Rubber (Buna-N/NBR)
Natural Rubber(NR)
Polyurethane(PU)
Silicone Rubber Styrene-butadiene Rubber (SBR)
Different elastomers have different compatibility with various chemical elements and their characteristics. See the table below for more material knowledge to order the most cost-effective o-rings from us.
| Material | Hardness (Shore A) |
Temperature (ºC) |
Main Color | Advantage | Price Level | Shelf Life (Years) |
| NBR / Nitrile / Buna-N | 60-90 | -40 - 120 | Black | Good oil resistance & low price | Low | 5-10 |
| HNBR / HSN | 60-90 | -40 - 150 | Green | Suitable for the cooling industry | High | 5-10 |
| FKM / FPM | 70-90 | -20 - 200 | Brown | High-temperature & chemical resistance | High | About 20 |
| EPDM / EPR | 50-90 | -50 - 150 | Black | Excellent weather & ageing resistance | Fair | 5-10 |
| VMQ / Silicone | 40-80 | -70 - 220 | Red | High-temperature & FDA food grade | High | About 20 |
| Neoprene / CR | 50-90 | -40 - 120 | Black | Versatility Properties | Fair | 5-10 |
| FFKM | 70-90 | -10 - 320 | Black | Excellent chemical & high-temperature | Highest | About 20 |
| FVMQ / Fluorosilicone | 40-80 | -60 - 200 | Blue | Wider operating temperature range | High | About 20 |
| Aflas / FEPM | 40-90 | -2 - 230 | Black | Good chemical compatibility | Higher | About 20 |
| PU / polyurethane | 60-90 | -40 - 90 | Natural | High strength and wear resistance | High | About 10 |
We have certificates :ISO 9001:2015 , ISO 14001:2015 ,ISO 45001:2018 , IATF 16949 , FDA, REACH, ROHS, SGS etc.
1. Since 2006, focus on rubber seals, especially for auto parts
2. Certificates: ISO9001, IATF16949, ISO14001, ISO45001,ISO 13485
3. Two factories, more than 18000M2,clean room 600M2, with 300 workers.
4. Molds > 10000 sets, especially o rings, about 5000 sets.
5.O-ring series covers American standard (AS568), Japanese standard (JIS), national
standard(GB), and produces a large number of customized non-standard parts.
6. Material: NBR, FKM, SIL, EPDM, CR, NR, PU, HNBR, FFKM, SBR .The rubber materials
used meet the requirements of ROHS2.0 and REACH235.
7. Material Certificates: FDA, ROHS, REACH, UL157, CP65 WRC, EN549,EN45545.
8. Products are widely used in automotive parts, electronic connectors, valves, pneumatics,
power tools, new energy, medical equipment, electronic products and other fields.
Ruichen always meets our customers' requirements. To make sure we produce high-quality o-rings, our company implements the
following general standards:
1) Raw material incoming inspection standard ASTM D2000 & HG/T 2579-2008 & HG/T 2811-1996
2) Public o-ring dimensional tolerance GB/T 3452.1-2005
3) N-level specification for o-ring appearance quality inspection GB/T 3452.2-2007
4) Hardness measurement model Micro O-Ring Testing (Type M system)
5) Hardness using standard ASTM D2240 Rubber Standard Test Method (Shore A)
6) Sampling inspection specification GB/T2828.1-20
Ruichen company have cooperated with many superior customers as below , we have complete system and excellent productivity
to serve for you
Why RUICHEN?
Many big companies select RUICHEN for their rubber seals and customized rubber parts because we always
satisfy them in quality, price, delivery, service, etc. At the same time, we also attach great importance to the
small customers in niche markets.Whether your purchase quantity is big or small, you are our valuable partners.
High Quality
We continue to manufacture high-quality products for all customers and pursue 100% customer satisfaction,
which has become one of our core competencies.
Profession
We have rich experience in materials, products, and production and excellent international trade and language
communication skills.
Best Services
From quoting, sampling, production, and shipping to after-sales, our sales will provide you with the best service
so that you can rest assured completely.
10000+ Projects Delivered
Over 10K projects have been sent to our customers worldwide in recent years, and we have received countless
positive comments.
Low Price
Our customers can obtain maximum profits through the ISO management system and intelligent manufacturing
to reduce our costs continuously.
Massive Capacity
Our in-house facilities allow us to get your projects done fast. And thanks to our strong relationship with rapid
materials partners, our capacity is not limited.
Fast Delivery
Unlimited capacity, experienced engineers, and a flexible production system allow us to create your seals and
production parts in a short period.
1000+ Happy Customers
We aim to keep every customer happy with reliable quality, fast turnaround, and excellent services. We want all
our new customers to become long-term customers.
We can also produce Automotive Rubber Seals ,Connector Rubber Seals ,Power Tool Rubber seals ,Valve Rubber Seals ,Pipe Rubber Seals ,Semiconductor Rubber Seals ,Hydraulic Pneumatic Rubber Seals ,Pump Rubber Seals ,Oil and Gas Seals ,Food Grade Rubber Seals ,Medical Rubber Seals ,Chemical Equipment Rubber Seals ...etc.
FAQ
Q: 1 What kinds of materials can you provide?
A: NBR, EPDM, SILICONE,FKM(FKM),NEOPRENE(CR), HNBR ,NR, IIR, SBR, ACM, AEM,Fluorosilicone(FVMQ),
FFKM etc.
Q: 2 How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your
needs while keeping material costs in mind.
Q: 3 How long can we get the quote?
A: If your information is complete, we will provide the quotation within 8 hours.
Q: 4 Can you provide samples? Is it free or extra?
A: Yes, we can provide samples for free. Freight can be negotiated.
Q: 5 What is the normal lead time for product orders?
A: If the stock generally takes 3-7 days, mold about 15-18 days, no mold about 25-30 days, depending on the product
situation.
Q: 6 How to check the quality of the bulk order?
A: We have incoming inspection, control the quality of raw materials, process inspection,to ensure the quality of the
production process, shipping 100% of the full inspection; automatic inspection machine full inspection, and according
to customer needs before the mass production of pre-production samples.
Q: 7 What is your standard packing?
A: Plastic bag for inner packing .carton box for outer packing also be packed according to customer's requirements.
Q: 8 What's the payment term?
A: We accept T/T 30% deposit and 70% balance , Paypal is also ok.
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