Industrial O-Ring Seals for Static and Dynamic Sealing Applications

O-Ring Seals supplied by Wonzh are high-performance elastomer sealing components designed to prevent leakage of liquids, gases, and other media in both static and dynamic applications. Featuring a simple circular cross-section, O-rings provide effective sealing through elastic deformation under compression, making them one of the most widely used sealing solutions in industrial equipment.

Manufactured from premium elastomer materials such as NBR, FKM (Viton), EPDM, silicone, and PTFE-encapsulated compounds, Wonzh O-rings deliver excellent resistance to heat, oil, chemicals, and wear. Precision molding and strict quality control ensure dimensional accuracy, long service life, and stable sealing performance under varying operating conditions.

As an experienced industrial sealing supplier, Wonzh provides standard sizes, metric and inch dimensions, as well as customized O-ring solutions tailored to specific pressure, temperature, and media compatibility requirements. Our engineering team supports material selection, groove design recommendations, and application optimization to ensure reliable performance in real operating environments.

Key Features

• Excellent sealing performance in static and dynamic applications

• Wide range of material options for different media and temperatures

• High elasticity and compression recovery

• Strong resistance to oil, chemicals, and aging

• Easy installation and low maintenance

• Custom sizes and materials available

Typical Applications

• Hydraulic and pneumatic systems

• Pumps and valves

• Industrial machinery and equipment

• Automotive components

• Chemical processing equipment

• Food and beverage machinery (FDA-grade options available)

• Water treatment systems

• Aerospace and energy equipment

Technical Parameters (Representative Range)

Representative Material Selection Guide

Why Choose Wonzh

• Strict quality control and dimensional inspection

• Wide material portfolio for different industries

• Standard and custom size availability

• Engineering support for groove design and material matching

• Stable supply chain and reliable delivery

Frequently Asked Questions (FAQ)

Q1: What is an O-ring used for?

An O-ring is used to prevent leakage between two mating surfaces by creating a compressed seal that blocks fluid or gas flow.

Q2: Which material should I choose?

• For oil and fuel → NBR

• For high temperature or chemicals → FKM (Viton)

• For water/steam → EPDM

• For food-grade use → Silicone or FDA-approved materials

Q3: Can O-rings be used in high-pressure systems?

Yes. With proper groove design and backup rings, O-rings can withstand pressures up to 40 MPa.

Q4: Do you provide custom sizes?

Yes. We can manufacture O-rings in custom diameters, cross-sections, and materials based on your requirements.

Q5: Are standards supported?

Yes. We comply with ISO 3601, AS568, and DIN standards.