What is Flame Arresting? The accidental ignition of flammable gases or vapours from vent pipes of storage tank or process vessel presents a constant threat to plant and personnel. The use of the flame arrestors is one of the essential measures taken to avoid or minimize the possible consequences. Their application is widespread, ranging from the protection of small solvent tanks to the safety of large and complex process plant. The oil, gas, petroleum, chemical and petrochemical industries are major users.
A flame arrester is a static device which stops a flame entering into the storage tank or process vessel containing a flammable gas or vapour. An end -of-line type flame arrestor is fitted at the extreme downstream end of a pipeline.
The arrester consists of a flame quenching element contained within a housing which incorporates thread or flange connections for fitting to pipework. The element is often of greater diameter than the pipework in order to compensate for pressure drop and therefore the housing is enlarged accordingly.
 
Key Features
 
The key to the proven flame arresting capabilities of NIRMAL Flame Arrestor is the element pack. Specially woven guaze resistant stainless steel wire gauge provides a controlled and reproducible aperture size combined with the necessary physical strength. A series or pack of these corrosion resistant gauge is assembled and the depth is maintained considering the flame speeds and over pressures likely to be encountered in end of line applications.
Extensive flame testing in accordance to the appendix A of BS 7244-1990 and with clause 2.1 of IS:11006-1984 has been carried out at CMRI Testing Cell, Dhanbad.
These not only provide exceptional protection against fire and explosion from external ignition, but also offer effective flow at the lowest resistance (Pressure drop) of the flammable gas or vapour.
They are extremely robust and will both resist the pressure waves which accompany flame fronts and withstand vigorous cleaning when required.
Quick and easy inspection and maintenance, due to reduced weight and simple removal of element.
Complete range of sizes from ½ inch through 12 inches are available with flat face or raised face flanges to match ANSI 150# connections(higher size on request).
 
Specifications
 
Size : ½" (DN15) to 12" (DN300).
Flame Arrestor Type :
Inline Type
End-of-line type
End-of-line with non-return valve
Rating : 150# (Higher ratings on request).
End Connection : Flanged (As per ASME B16.5).
 
MOC
 
 
Body*
A216 Gr. WCB/ A351 Gr. CF8 / A351 Gr. CF8M / A351 Gr. CF3/ A351 Gr. CF3M
Element Plate
SS 316
Element Mesh
SS 321
Hood
Carbon Steel / Stainless Steel
* Other materials avai                          lable on request