Vertical, In-line, Detonation

Vertical, In-line, Detonation 18

Vertical, In-line, Detonation

Model No: 320

Storagetech™’s Model 320 In-line Detonation Flame Arrestor (also called flame arrestor or fire arrestor) is designed for installation in gas pipelines. Detonation occurs when a flame travelling through the pipeline reaches supersonic velocities, usually as a result of the pipeline configuration or pipeline surface roughness. Changes in gas density and pressure causes the flame velocity to metamorphose from subsonic to supersonic.

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 320 In-line Detonation Flame Arrestor has a maximum experimental safe gap (MESG) as per the standard, and is suitable for gas groups IIB and IIA.

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 cert: 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