INFORMATION

• The deflagration flame arrester is symmetrical and offers bidirectional flame transmission protection. The number of Flame Elements and their gap size depends on the arrester´s intended use. Specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, enables MF21 to select the best deflagration flame arrester for your application. Our deflagration flame arresters is available for substances of explosion groups IIA and IIC (NEC groups D and C (MESG ≥ 0.5 mm, 0.5mm ≥ MESG)). EN ISO 16852 / API 2000

• Description
• A flame arrester functions by absorbing the heat from a flame front traveling at subsonic velocities, thus dropping the burning gas/air mixture below its auto-ignition temperature; consequently, the flame cannot survive. The heat is absorbed through channels (passages) designed into an element. These channels are chosen and measured as the MESG (maximum experimental safe gap) of the gas for a particular installation. On a fuel storage vent, flame arresters also serve a secondary purpose of allowing air pressure to equalize inside the tank when fuel is added or removed, while also preventing insects from flying or crawling into the vent piping and fouling the fuel in the tanks and pipes. In-line / End-line type & also Detonation type is available.

• Benefits
• - Bi-directional flame transmission proof design
  - Lowest pressure drop results in low operating and life cycle costs
  - Protects with deflagrations for explosion groups IIA & IIB (NEC groups D & C)
  - Optimized flow capacity
  - Easier cleaning
  

• Specification

• Size:	From 1" (ND 25A)	To 40-in (ND 1000A)
  MESG:	less than 0.5mm	To higher than 0.9mm

• Materials

• No	Descriptions	Spec. 1	Spec. 2	Spec. 3
  1	Body	A216-WCB	A351-CF8M	B26-319
  2	Cover	A240-304	A240-316	A240-304
  3	Disc	A240-304	A240-316	A240-304
  4	Seal	A240-316	A240-316	A240-316
  5	Seat	A240-304	A240-316	A240-304

  - Special materials can available upon request.