This century-old Preferred invention is still a vital piece of safety equipment The anti-siphon valve, patented in 1929, helps keep fuel oil handling facilities safe today. Almost a century ago, one of our founders developed the anti-siphon valve, a product that has become a vital piece of safety equipment in fuel oil systems across the country. It’s still […]
FlexFit Retrofit – More savings, More efficiency
Made in the U.S.A., Preferred retrofits provide sustainable solutions for reducing energy costs with upgraded efficiencies. At this site in Queens, NY, one of our skilled field service engineers replaced an obsolete Honeywell RM7800 L flame safeguard/ ControLinks fuel-air combination with our FlexFit Linkageless Controller. The FlexFit controller brings linkageless control to your burner with an integrated flame safeguard […]