Category Archives: nitrile

08Dec/25

NORA Technical Bulletin

Biofuels, Carbon Reduction, Education, Equipment, nitrile, NORA, pumps, Research, technology

Biodiesel-Rated Products & Accessories

When servicing or installing equipment in homes using biodiesel or Bioheat® fuel, technicians must select components & accessories specifically rated for biodiesel lends at or above the blend being delivered—or as required by state or local regulations.

Biodiesel-rated parts including tanks, gaskets, hoses, filters, pumps, seals, and all other fuel-contact materials are engineered for long-term compatibility with biodiesel. These components resist swelling, degradation, premature wear, and fuel-related failures that can occur when conventional materials are exposed to higher biodiesel blends.
Using biodiesel-rated products not only ensures stable, reliable system performance and helps maintain fuel quality from storage to combustion, but it also future-proofs
the installation. As the industry continues to move toward higher biodiesel blends and low-carbon liquid heating fuels, proper component selection becomes essential for delivering safe, efficient, and trouble-free operation, today and for years to come

30Jun/20

Impact on service by biodiesel blends in heating oil

Biofuels, Education, nitrile, NORA, pumps, Research, technology

The National Oilheat Research Alliance (NORA) has conducted periodic surveys to assess the impact and role that biofuels play in the marketplace. Many view low-carbon fuels as the best path for the industry as it reduces its environmental impact. Biodiesel is a low-carbon fuel that is available in most markets, is used widely and offers significant reduction of the amount of carbon dioxide released by heating appliances.

NORA has conducted ongoing research in this area and has found that the transition to higher blends of biodiesel can occur with low costs and little impact on the consumer. A number of retailers have been selling the higher blends of biodiesel.

To verify/validate the lab conclusions on biodiesel, NORA conducted a wide-ranging survey of retailers and service personnel. This latest survey, completed in December 2019 is summarized here.

See the survey report here

16Mar/20

Technical Note: Nitrile Rubber and B20 Biodiesel Blends

Biofuels, Equipment, nitrile, NORA, pumps, Research, technology

A significant amount of new testing data on nitrile performance in U.S. heating oil equipment with biodiesel meeting today’s stringent ASTM standards is now available. This recent testing shows common nitrile elastomers in typical heating oil burner pumps in the U.S. perform the same or better using B20 than those using conventional No. 2 heating oil. The validity of this testing is supported by elastomer manufacturers marketing B-100 nitrile which could, if appropriate, be used by burner manufacturers. See Technical note here.