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MINERVA RUBBER & ENGINEERING WORKS
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Natural Rubber O'Rings

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Natural Rubber O'Rings Specification

Water Absorption
0.3 1.0% (by weight)

Tensile Strength
16-24 MPa

Length
Continuous ring (circumference based on diameter)

Nitrogen Content (%)
Negligible

Style
Round cross-section

Diameter
Standard range: 2 mm to 500 mm

Product Type
ORing

Thickness
1 mm to 10 mm or as specified

Components
Single-piece molded ORing

Density
0.97 Gram per cubic centimeter(g/cm3)

Weight
Varies with size and thickness

Material
Natural Rubber (NR)

Color
Natural (light brown to yellowish) or as specified

Thermal Conductivity
~0.13 W/mK

Feature
High elasticity, flexible, good sealing properties

Rubber Type
Natural Rubber

Compression Ratio
Optimal 15-30%

Usage & Applications
Sealing applications, hydraulic and pneumatic systems, automotive, industrial machinery, plumbing

Hardness
40-80 Shore A

Width
Customizable as per requirement

Size
Standard and custom sizes available

Temperature Resistance
-40C to +70C

Resistance level
Good resistance to compression and abrasion, moderate resistance to acids and alkalis

Natural Rubber
Yes

Flame Resistance Level
Low

Part Type
Seal/Gasket

Surface Finish
Smooth

Volatile Matter (%)
<2%

Tolerance
0.1 mm (standard)

Ash %
Low (typically <0.5%)

UV Resistance
Poor

Ozone Resistance
Poor

Abrasion Resistance
Excellent

Elongation at Break
>500%

Suitable Media
Water, mild acids, alkalis, alcohols

Packaging
Packed in polybags or cartons as per client requirement

Shelf Life
Up to 5 years under recommended storage conditions

Not Recommended For
Oils, fuels, hydrocarbons

Tear Strength
High (up to 40 N/mm)

Compliance Standards
Conforms to ASTM D2000 (on request)

Storage Conditions
Cool, dry place, protected from sunlight and ozone sources

Manufacturing Process
Compression/Injection molding

Durometer Range
40-80 Shore A

Natural Rubber O'Rings Trade Information

Main Domestic Market
All India

About Natural Rubber O'Rings

Rubber O Rings are precisely designed sealing components that are notable for their torus shape. These are installed in groove section of single or multiple parts by applying compression force for attaining hermetic fastening result. In brief, these are the elastomer loops that are noteworthy for their cross and circular sectional design.

The offered sealing rings are suitable both for passive and active works utilization purpose. Being cost effective, these are considered as the most ergonomic sealing components available in the market. Simple manufacturing technique, trouble free usage and easy fitting method are some key attributes of these sealing parts.

Based on their hardness level and materials of construction, these o rings are used as essential sealing materials for equipments like filters, generators, lubricating systems, compressors, LPG regulators, gas-springs, valves and pumps, pneumatic and hydraulic cylinders, automobiles and actuators to name a few.

We have grown expertise in the manufacturing arena of Rubber O Rings that are made of standard grade rubbers like EPDM, neoprene, silicon, natural, viton, nitrile and others.

Customers can obtain these o rings in different metric size options, in non standard and standard dimension range from the huge collection of MREW. Clients can also attain these o rings in required size or fluid resistance configurations from this organization.

Apart from providing standard o rings, MREW is also instrumental in offering these with latest sealing design options like Quad Rings® that are used for low pressure sealing purpose

Exceptional Sealing Performance

These Natural Rubber O-Rings are meticulously designed to provide reliable and resilient sealing across a range of industrial and automotive applications. Their high elasticity and abrasion resistance ensure lasting performance and minimal leakage even under varying pressures.

Customization for Diverse Needs

Available in both standard and custom sizes, widths, and colors, our O-Rings meet unique application requirements. Thickness ranges from 1 mm to 10 mm, and diameters span from 2 mm to 500 mm, ensuring adaptability in a wide spectrum of sealing scenarios.

Quality Manufacturing and Compliance

Each O-Ring undergoes precise compression or injection molding, resulting in smooth finishes and consistent tolerances (0.1 mm). Upon request, they conform to ASTM D2000, demonstrating our commitment to high quality and international standards.

FAQs of Natural Rubber ORings:

Q: How are natural rubber O-Rings manufactured?

A: Natural rubber O-Rings are produced using either compression or injection molding processes. These methods ensure precise dimensions, smooth surface finishes, and consistent quality across both standard and custom specifications.

Q: What types of media are natural rubber O-Rings suitable for sealing?

A: These O-Rings are well-suited for sealing water, mild acids, alkalis, and alcohols, making them ideal for plumbing, industrial, or laboratory applications. However, they are not recommended for use with oils, fuels, or hydrocarbons.

Q: When should I consider using natural rubber O-Rings over other materials?

A: Choose natural rubber O-Rings for applications demanding high elongation, flexibility, and excellent abrasion resistance, particularly where operating temperatures range between -40C to +70C and there is no exposure to oils, fuels, or ultraviolet or ozone environments.

Q: Where are natural rubber O-Rings commonly applied?

A: These O-Rings are widely used in hydraulic and pneumatic systems, automotive assemblies, industrial machinery, and plumbing installations, where efficient and flexible seals are essential for system integrity.

Q: What are the recommended storage conditions for maximizing shelf life?

A: To maximize shelf lifeup to five yearsstore O-Rings in a cool, dry environment, protected from direct sunlight, ozone sources, and heat. Proper storage mitigates risk from premature degradation or loss of flexibility.

Q: What makes natural rubber O-Rings beneficial for sealing applications?

A: Their high elasticity, low compression set, excellent abrasion resistance, and customizable dimensions provide dependable sealing, reduced maintenance, and adaptability to various mechanical environments.

Q: What packaging options are available for shipping natural rubber O-Rings?

A: O-Rings are carefully packed in polybags or cartons, customized according to client requirements, ensuring product integrity and protection during transportation and storage.

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