Fluid Gas Handling

New O-ring Face Seal Fitting Promotes Environmental Sustainability with Alternative Fuel Compatibility

Seal-Lok for CNG fittings provide reliable fuel conveyance connections using an elastomeric seal compound made of hydrogenated nitrile.

Environmental sustainability is a hot-button topic in many industries that use Parker products. New technology needs to simultaneously improve the bottom line and ensure that our children will inherit a healthier planet.

In response to the push toward environmental sustainability, we recently expanded our well-known line of Seal-Lok™ O-ring Face Seal (ORFS) tube fittings for compressed natural gas (CNG) applications.

Natural gas is an ideal alternative fuel source because it produces 30 percent fewer greenhouse gas emissions than gasoline or diesel. The resource is abundant in North America, relatively inexpensive and compatible with a diverse range of industry applications.
 

Reliable solutions for CNG applications

Seal-Lok for CNG fittings is tailored to accommodate unique natural gas attributes. Seal-Lok for CNG provides reliable fuel conveyance using an elastomeric seal compound made of hydrogenated nitrile that improves ozone resistance and supports wider temperature range requirements. In addition, it’s a great solution for high-vibration, on-vehicle applications where metal-to-metal sealing is not up to the task.

What’s more, Seal-Lok for CNG is fully tested by TUV (NGV 3.1, ECER110, ISO 15500) for on-vehicle CNG applications.

This advancement makes o-ring face seal tube fittings ideal for applications such as:

  • CNG truck fuel systems

  • Saddle-mounted and back-of-cab CNG tank systems

  • CNG passenger vehicle fuel systems

  • On-vehicle CNG fuel and storage systems

  • CNG dispensing

  • Fleet CNG filling stations

Seal-Lok for CNG is available in tube and hose sizes ranging from ¼” to ¾” (6 mm to 20 mm). These fittings enhance the performance and reliability of CNG tube or hose connections and reduce assembly and disassembly times.

Key benefits of Seal-Lok for CNG applications include:

  • Torque resistance (eliminates damage from over-tightening)

  • Produces zero clearance for easy plumbing

  • Superior resistance to vibration

  • Available in stainless steel, steel and XTR-plated (zinc nickel) steel

  • Temperature compatibility of -40° to 300°F (-40° to 150°C)

  • Unlimited reusability due to easily replaceable O-ring

  • Port options include SAE J1926-1 and ISO 6149-1 straight thread ports and NPT tapered ports

Tested by TÜV SÜD for:

  • ECER110 regulations (Economic Commission for Europe),

  • ANSI NGV 3.1-2014/CSA 12.3-2014 for stainless steel and zinc nickel plated steel (Natural Gas Vehicles/Canadian Standards Association)

  • ISO 15500

Contact Parker Tube Fittings Division today at 614.279.7070 or www.parker.com/tfd to learn more about our latest fitting capabilities.

Read articles about hydraulic fitting topics, industry trends and helpful tips for engineers written by our engineers on our techConnect blog.

Do you want to receive new product announcements and technology updates from Parker Tube Fittings Division? Subscribe today and stay informed. 

 

Ted Amling Senior Project Engineer at Parker Hannifin Tube Fittings Division

 

This article was contributed by Ted Amling, Senior Project Engineer, Parker Hannifin Tube Fittings Division
 

 

 

 

Related content for you:

Seal-Lok ORFS CNG Fittings Pass On-Vehicle Fire Safety Test

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Reduce Combustion Turbine Downtime with Leak-Free Extreme Temperature Fittings

 

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Prasad Gandhe
Seal technology good

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