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ULC ULC/ORD-C525-75 Flame Arresters for Use on Vents of Storage Tanks for Petroleum Oil and Gasoline

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Description

These requirements cover flame arresters for use in open vent pipes, flame arresters for use with vent valves, and combination flame arrester-vent valves, all intended for use on vents of storage tanks for petroleum oil and gasoline.

These requirements also cover flame arresters for oil tanker ships. The flame arresters covered by these requirements are intended to prevent the propagation of flame through the flame arrester into the storage tank.

A flame arrester is investigated for the installation for which it is designed, with respect to any of the following that is intended:
  • Connection in a vent line at a specified maximum distance from the open end of the pipe
  • Opening directly to the atmosphere through a specific weather-hood
  • Use with a specific vent valve.

Published 3/31/1975.


These requirements cover flame arresters for use in open vent pipes, flame arresters for use with vent valves, and combination flame arrester-vent valves, all intended for use on vents of storage tanks for petroleum oil and gasoline.

These requirements also cover flame arresters for oil tanker ships. The flame arresters covered by these requirements are intended to prevent the propagation of flame through the flame arrester into the storage tank.

A flame arrester is investigated for the installation for which it is designed, with respect to any of the following that is intended:
  • Connection in a vent line at a specified maximum distance from the open end of the pipe
  • Opening directly to the atmosphere through a specific weather-hood
  • Use with a specific vent valve.

Published 3/31/1975.