BEST SELLER

O-Ring Seals

Standard and custom O-ring seals available in a wide range of materials, sizes, shapes, and specifications. Designed for sealing liquids and gases, these O-rings offer cost-effective performance, light weight, easy assembly, and flexible material selection for different sealing environments.

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Key Features

Multi-Material O-Ring Seals for Fluid Sealing

Our O-ring seals are available in standard catalog sizes and custom specifications, making them suitable for a wide range of liquid and gas sealing applications. Different rubber and plastic materials can be selected according to temperature, oil resistance, corrosion resistance, and wear resistance requirements.

  • Standard Size Availability

    A wide catalog of standard O-ring sizes helps support common sealing applications with cost-effective and easy-to-assemble solutions.

  • Custom Shape and Specification

    O-ring shapes and specifications can be produced according to customer requirements, drawings, or application needs.

  • Wide Material Selection

    Available materials include NBR, EPDM, Silicone, FKM / Viton, PU, PTFE, and other sealing materials.

  • Liquid and Gas Sealing

    Designed for fluid sealing applications involving liquids and gases across different equipment and assembly environments.

  • Cost-Effective Sealing Solution

    O-rings are lightweight, easy to install, and economical, making them one of the most widely used sealing elements.

  • Quality Control Support

    Products are supplied after strict quality control, with a one-year warranty available.

Technical Data

Specifications & Materials

Technical specifications for standard and custom O-ring seals used in liquid and gas sealing applications.

Product Specifications
Product Name Standard and Custom O-Ring Seals
Material Options NBR, EPDM, Silicone, FKM / Viton, PU, PTFE
Size Type Standard sizes and custom specifications
Customization Shape and specifications can be produced according to customer requirements
Sealing Media Liquids and gases
MOQ 10,000 pcs
Price Range USD 0.0075–1.5 / pc
Quality Strict quality control
Warranty One year
Application Fluid sealing for liquid and gas systems

Available Compounds

  • NBR O-Rings

    NBR O-rings provide excellent oil resistance and are commonly used for cost-effective sealing applications involving oils, greases, and general industrial fluids.

    Oil Resistant –30°C to +100°C General Sealing
  • EPDM O-Rings

    EPDM O-rings offer good aging resistance, alkali resistance, and temperature resistance for water, weather, and general sealing applications.

    Aging Resistant Alkali Resistant –15°C to +150°C
  • Silicone O-Rings

    Silicone O-rings are suitable for food-grade sealing applications and provide excellent flexibility across a wide temperature range.

    Food Grade Flexible –50°C to +250°C
  • FKM / Viton O-Rings

    FKM / Viton O-rings provide strong corrosion resistance and high-temperature sealing performance for demanding chemical and fluid environments.

    Corrosion Resistant High Temperature –40°C to +260°C
  • PU O-Rings

    PU O-rings provide good oil resistance, wear resistance, and temperature resistance for sealing applications that require higher abrasion performance.

    Oil Resistant Wear Resistant –35°C to +120°C
  • PTFE O-Rings

    PTFE O-rings provide excellent corrosion resistance, good mechanical properties, and a wide operating temperature range.

    Corrosion Resistant Good Mechanical Properties –200°C to +200°C

Standard Catalog Sizes and Custom Production

A wide catalog of standard O-ring sizes is available for common sealing needs, while custom shapes and specifications can be produced according to customer requirements.

  • 10,000 pcs

    MOQ

  • USD 0.0075+

    Starting Price per Piece

Where It's Used

Application Scenarios

O-ring seals are widely used in assemblies that require reliable sealing for liquids, gases, oils, chemicals, and other compatible media.

  • Liquid Sealing Systems

    Used in equipment and assemblies that require sealing performance for water, oils, or other compatible liquids.

  • Gas Sealing Systems

    Suitable for applications where O-rings help prevent gas leakage at connection points or sealing interfaces.

  • Oil-Contact Components

    NBR, FKM / Viton, and PU materials can be selected for sealing environments involving oil or grease.

  • Food-Grade Sealing

    Silicone O-rings can be selected for food-grade sealing applications where material compliance is required.

  • Chemical-Resistant Sealing

    FKM / Viton and PTFE O-rings can be selected for applications requiring corrosion resistance.

  • Custom Equipment Assemblies

    Suitable for customized sealing designs based on customer drawings, shape requirements, or working conditions.

OEM & Custom

Custom O-Ring Seal Design

We provide custom O-ring seal production based on your required material, shape, specification, temperature range, sealing media, MOQ, and application environment.

  • Material Selection Support

    O-ring materials can be selected according to oil resistance, aging resistance, food-grade needs, corrosion resistance, or temperature requirements.

  • Size and Shape Customization

    Shapes and specifications can be produced according to customer requirements, drawings, samples, or sealing groove dimensions.

  • Application-Based Matching

    Different O-ring materials can be matched to liquid sealing, gas sealing, oil-contact, food-grade, or chemical-resistant applications.

  • Quality and Order Support

    Products are supplied after strict quality control, with MOQ, pricing, and warranty terms available for order planning.

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