Deflagration Flame Arrester (NK-FA21T)

DESIGN AND FUNCTION

Model FA21, FA23 is bi-directional type and designed to be installed in “open vent pipes” from storage or processing tanks, bleed lines or other vapor conveying lines.
The flame arrester consists of a spiral wound and crimped bank element, is designed for easy maintenance.
After removing tie rod bolts, it can be expanded by using the remaining jackscrews for element exchange.

Model FA21T, FA23T is used to prevent propagation of an external flame source through the vent opening and into the tank. It should be installed at distances of more than 20 times length of arrester N.D away from the open end of pipe.

 

 

SPECIFICATIONS

Installation	Vertical, recommend Required drain plug for horizontal installation
Type	In-line flame arrester
Size	1",2",3",4",6",8",10",12",14",16"
Classification	Deflagration flame arrester, Bi-directional
Normal working pressure	Below 1.0 barg(standard speciafication)
Explosion gas group	IIA(standard), IIB/IIC(for special application)

 

MATERIALS

PART NAME	MATERIALS STANDARD	MATERIALS OPTIONAL
Body	Carbon Steel, 304 S.S, 316 S.S,Aluminum	Hastelloy, Alloy 20, Monel, Inconel
Flame Element	316L S.S	Hastelloy, Alloy 20, Monel, Inconel
Element Housing	304 S.S, 316 S.S 316L S.S	Hastelloy, Alloy 20, Monel, Inconel
Stud Bolt and Nut	C.S, 304 S.S 316 S.S	316 S.S

 

INSPECTION AND INSTALLATION

All NEOTECHKOREA flame arresters are bi-directional and the installation on a tank or piping system depends to a great extent on the design of the system. The Model NK-FA21T is recommended for vertical installation in closed piping systems or venting to atmosphere. (Model NK-FA23T:
Horizontal Installation) If a Model NK-FA21T is installed in a horizontal line, it should be equipped with drain ports for removal of condensation from the housing.

 

DRAWING AND DIMENSION (NK-FA21T)  Unit : (mm)

 

 

SIZE	2"	3"	4"	6"	8"	10"	12"
I.D	50	80	100	150	200	250	300
H	280	290	355	358	397	463	520
L	225	263	310	400	479	575	663

 

 

FLOW CAPACITY

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com