Vertical, In-Line, Deflagration

Vertical, In-Line, Deflagration 18

Vertical, In-Line, Deflagration

Model No: 300

Storagetech™’s Model 300 Vertical In-line Deflagation Flame Arrestor (also called flame arrestor or fire arrestor) is intended for pipeline installation close to the source of any potential ignition source by minimising flame speed and the development of an explosive pressure.

The flame quenching element is designed to be three or four times the area of the pipe in which it is installed, and is assembled between two flanged reducing spools. The element comprises a tightly rolled scroll or scrolls of crimped stainless steel ribbon to form passages through which the vapour passes. The area of each passage determines level of protection that the element provides. Storagetech™’s Model 300 In-line Deflagration Flame Arrestor has a Maximum Experimental Safe Gap as per standard, and is suitable for gas groups IIB and IIA.

Under normal operation the flame element allows the bi-directional flow of air and flammable vapour, however it introduces additional pressure loss, and this must be considered in the design of the system. If a fire or ignition occurs external to the equipment and ignites the flammable discharge, the flame arrestor will quench the leading fire by absorbing and dispersing the heat as it passes through the element.

The unit is supplied with an earth point, copper tag and cable. Periodically the cell can be removed for cleaning or replacement.

Pressure Vacuum Valve production certificates


Standard sizes: 1” to 12” DN25 to DN300
Body / Flanges:  Carbon Steel, Stainless steel AISI 316 –L or 304-L, Aluminium, Customer Specification
Flange drilling: API Class 150, PN16, and special
Flame element: Stainless steel AISI 316 –L or 304-L
O-ring seal: Nitrile, Special
Screen: Stainless steel
Weather hood: Carbon steel, Stainless steel or Aluminium
Paint finish: Powder Coating, Colour RAL 9006,  Epoxy Paint, Colour RAL 9006, Customer Specification
ATEX certificate: Ex II 1/2 G IIB

Design & Manufacturing Specifications

The size of the vent should be calculated in accordance with API Standard 2000 (ISO 28300) – Venting Atmospheric and Low-Pressure Storage Tanks or other international standards.

Flame Arrestors Models