News Releases

Published: August 4, 2016

IMPCO Technologies Releases New CNG Pressure Relief Devices

Kitchener, ON – IMPCO Technologies, Inc. (“IMPCO”), a global leader in the alternative fuel industry and a division of Westport Fuel Systems Inc., has confirmed the release of an expanded line of GFI branded high pressure compressed natural gas (“CNG”) thermal pressure relief devices. The new products now available globally include:

  • High performance in-line (Model# PRD-4E)
  • High performance end of line (Model# PRD-4L)
  • High performance 1 1/8” End Plug (Model # PRD-4P; also available with integral temperature sensor)

This innovative technology was developed to supplement the existing models of thermal pressure relief devices, with the new models being certified to ANSI PRD 1-2013 and available with both Eutectic and Glass Bulb Technology.

IMPCO’s line of GFI pressure relief devices are designed for maximum heat transfer and reliable fast activation performance. The high flow discharge design ensures that in the unlikely event that the device is activated, the integrity of the CNG system will remain intact.

Offered with a wide range of options, these devices can be configured to meet the requirements of your application.

  • High flow, fast acting design
  • Light weight anodized aluminum body
  • Restriction of Hazardous Substances (“RoHS”) compliant eutectic technology
  • Maximum working pressure 35 Mpa (5000 psi)
  • Working temperature -40 to +85 degrees Celsius
  • Wide range of port options
IMPCO Technologies PRD-4LPRD-4L IMPCO Technologies PRD-4EPRD-4E IMPCO Technologies PRD-4PPRD-4P

About IMPCO Technologies

IMPCO Technologies Inc., a division of Westport Fuel Systems Inc., develops, manufactures and markets products that enable internal combustion engines to operate on less expensive, cleaner burning fuel which promotes both energy independence and a cleaner environment. IMPCO Technologies provides turn-key solutions for mobile equipment and stationary engines, including industrial forklifts, sweepers, auxiliary power units/generators and construction equipment.  IMPCO is also a world leader in Truck and Rail Idle reduction, a technology that allows Class 8 trucks and diesel locomotives to achieve significant fuel savings while improving comfort for the truck operators and providing heating and electrical services that keep the primary engine ready for use.

Based in the Canada and the USA, IMPCO is a well-established global proprietary brand owned by Westport Fuel Systems Inc. and is one of the most recognized names in the combustion engine alternative fuel systems and component markets. Additionally, ComfortPro is a well-recognized North American Diesel Auxiliary Power Unit ("APUs") brand, known within the trucking industry for its superior performance and quality.

IMPCO offers a comprehensive range of alternative fuel components, and complete alternative fuel systems for both certified and non-certified engines. In addition, IMPCO's APUs and best in class services provides original equipment manufacturers, country distributors and aftermarket installers a rich portfolio of solutions from concept to vehicle integration and assembly. For more information, visit

About Westport Fuel Systems

At Westport Fuel Systems, we are driving innovation to power a cleaner tomorrow. We are a leading supplier of advanced fuel delivery components and systems for clean, low-carbon fuels such as natural gas, renewable natural gas, propane, and hydrogen to the global automotive industry. Our technology delivers the performance and fuel efficiency required by transportation applications and the environmental benefits that address climate change and urban air quality challenges. Headquartered in Vancouver, Canada, with operations in Europe, Asia, North America and South America, we serve our customers in more than 70 countries with leading global transportation brands. At Westport Fuel Systems, we think ahead. For more information, visit

More Information

Westport Fuel Systems
(Investor Inquiries)

Shawn Severson
Investor Relations
T 604-718-2046

Westport Fuel Systems
(Industrial & Automotive)

Angelique Berden
Manager, Marketing

IMPCO Components
(Product Inquiries)

Tom McIver
NA Sales Manager - Components
T +1 519-576-4351

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