C-Type Split Metal O-Ring | High Pressure & High Temp Metal Seal for Oil & Gas Industry

Commercial Terms of Products:

Overview

Tesel Seal designs and manufactures C-Type split metal O-rings engineered for extreme pressure and high-temperature sealing in demanding oil and gas applications. These metal seals provide reliable performance where conventional elastomer or polymer seals fail.

Each sealing ring is manufactured from corrosion-resistant metal alloys with precision split-ring geometry, ensuring stable sealing under pressure fluctuations, thermal expansion, and aggressive media exposure. The design delivers zero-leakage performance, high structural integrity, and resistance to sour gas, H₂S, CO₂, and hydrocarbons.

Widely used in wellhead equipment, pipeline flanges, high-pressure valves, and critical pump systems, Tesel Seal delivers customized metal sealing solutions for applications requiring maximum safety, reliability, and long service life.

Technical Specifications

Key Features and Performance Advantages

• High Pressure Capability – Engineered to withstand extreme pressures in oilfield operations, C-Type Split Metal O-Rings maintain sealing integrity even under transient pressure surges. Their split-ring design prevents extrusion and ensures uniform load distribution.

• High Temperature Performance – These O-rings operate reliably across a broad temperature range, accommodating cryogenic lows to high process temperatures. Material selection ensures thermal stability without deformation or loss of sealing force.

• Corrosion and Chemical Resistance – Constructed from high-quality alloys, the seals resist corrosion and chemical degradation from sour gas, CO2, hydrocarbons, and chemical additives common in upstream, midstream, and downstream processes.

• Split-Ring Design for Easy Installation – The C-Type geometry allows for installation in confined spaces or complex assemblies without requiring complete disassembly, reducing downtime and installation complexity.

• Long Service Life – High-strength alloys combined with precision machining extend the operational lifespan of the seal, reducing maintenance frequency and improving overall system reliability.

• Zero Leakage Performance – Optimized split-ring geometry provides multiple contact points and ensures tight sealing under both static and dynamic conditions, critical for high-pressure pipelines and valve systems.

• Vibration and Pressure Cycling Tolerance – The robust metal construction and precise fit minimize the effects of vibration and cyclic pressure changes, preventing fatigue and seal failure in high-demand environments.

Product Structure and Design

  
Tesel Seal C-Type Split Metal O-Rings consist of:

  
• Corrosion-resistant metal alloy body forming the split O-ring
• Precisely machined gap for assembly flexibility and installation
• Optional backing components for anti-extrusion in high-pressure applications
• Surface finish optimized to enhance sealing contact and minimize wear

This design ensures reliable sealing across variable operating conditions and supports both static and dynamic interfaces.

Applications

• High-Pressure Flanges – Maintains zero leakage in pipeline flanges under extreme pressure and temperature conditions.

 
• Wellhead Equipment – Provides reliable sealing in critical oilfield components such as Christmas trees, blowout preventers, and control valves.

 
• Pump and Valve Systems – Ensures consistent sealing in high-pressure pumps and control valves handling aggressive fluids.

 
• Cryogenic LNG Systems – Retains integrity in low-temperature storage and transfer systems for liquefied natural gas.

 
• Petrochemical and Refining Applications – Resistant to chemical attack in refining and processing equipment, ensuring operational safety and reliability.

Material Selection Strategy

  
Selecting the appropriate alloy and surface finish is critical:

  
• Stainless Steel – High corrosion resistance, suitable for general oil and gas service.
• Nickel Alloys – Enhanced chemical resistance for sour gas and CO2 environments.
• Cobalt-Based Alloys – High-temperature applications requiring superior strength and wear resistance.
• Surface Treatment – Polishing or coating can enhance chemical resistance and reduce friction.

Design Considerations

   
• Pressure Conditions – Maximum pressure and cycling must be evaluated to prevent deformation or extrusion.
• Temperature Range – Extreme temperatures require alloys with stable mechanical properties across the expected thermal gradient.
• Media Compatibility – Sealing materials must withstand aggressive hydrocarbons, sour gas, and chemical additives.
• Installation Constraints – Gap and split dimensions must accommodate flange tolerances and assembly limitations.
• Redundancy Requirements – High-criticality applications may require multiple sealing rings or backup components.

Failure Analysis and Optimization

   
• Extrusion Under High Pressure – Backup rings or reinforcing inserts prevent seal extrusion.
• Corrosion-Induced Degradation – Alloy selection and surface treatment mitigate chemical attack.
• Thermal Fatigue – Metal selection and split design compensate for expansion and contraction during temperature cycling.
• Installation Errors – Split-ring geometry allows for correction during installation, reducing the risk of misalignment.
• Dynamic Leakage – Optimized contact surface and alloy hardness maintain tight sealing under vibration and pressure fluctuation.

Tesel Seal engineers combine material science, precise machining, and rigorous testing to ensure each C-Type Split Metal O-Ring meets operational, safety, and longevity requirements.

Common Questions and Answers

   
• Can C-Type Split Metal O-Rings be used in cryogenic applications? – Yes, suitable alloys and design ensure performance at low temperatures.

 
• Are these seals suitable for sour gas environments? – Yes, nickel and stainless steel options provide excellent chemical resistance.

 
• How does the split design affect sealing? – The C-type geometry allows flexible installation while maintaining tight sealing.

 
• Is customization available? – Yes, Tesel Seal provides tailored solutions for specific pressures, temperatures, and flange configurations.

Replace Elastomer Seals with High-Integrity Metal O-Rings for Critical Systems

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