ENARDO flame arrestors protect storage tanks, vapor recovery systems and key processes against the effects of accidental vapor ignition. Many ENARDO flame arrestors are certified by the U.S. Coast Guard, Factory Mutual (FM) and ATEX to ensure the highest level of safety*. Our detonation arrestors feature a patented flame cell design with larger crimp openings than competing products, resulting in lower pressure drop, less plugging and easier cleaning. In addition to gas group D (IIA), ENARDO offers a full range of models for gas groups B (IIC) and C (IIB3).
ENARDO pressure/vacuum relief valves limit unwanted vapor emissions by maintaining pressure in storage tanks while allowing for thermal inbreathing and outbreathing, as well as normal filling and draining operations. With blanket gas systems, nitrogen consumption is minimized by the enhanced sealing characteristics of advanced composite materials, which also provide superior cold weather performance (to -50°F) and resistance to sticky substances. ENARDO also offers pressure/vacuum relief valve models for marine service that meet U.S. Coast Guard CFR33 Part 154 requirements.
ENARDO lock down hatches feature a tight vapor seal and non-sparking construction to provide secure storage tank access.
ENARDO emergency vents supply storage tanks with the extra relief capacity required by OSHA (29CFR 1910.106), API Standard 2000 and NFPA 30 in the event of an external fire or overpressure caused by a process upset. ENARDO's pressure/vacuum models also provide high-capacity vacuum flow for emergency pump-out.
ENARDO products are designed and manufactured in ISO 9001-certified facilities.