Flame Arrester NK-FA25T

DESIGN AND FUNCTION
Model NK-FA25T 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 NK-FA25T 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.

MODEL NAME : NK-FA25T

NK-FA25T PHOTO

NK-FA25T PHOTO

SPECIFICATIONS

MODEL NAME NK-FA25T
TYPE IN-LINE FLAME ARRESTER
SIZE 2” THROUGH 12”
INSTALLATION VERTICAL / HORIZONTAL INSTALL
CLASSIFICATION DEFLAGRATION FLAME ARRESTER / BI-DIRECTIONAL
NORMAL WORKING PRESSURE BELOW 10000mmH2O (STANDARD SPECIAFICATION)
EXPLOSION GAS GROUP IIA(standard), IIB/IIC(for special application)

MATERIALS

PART NAME MATERIALS STANDARD MATERIALS OPTIONAL
BODY C.S / SUS304 / SUS316 / ALUMINUM Hastelloy, Alloy 20, Monel, Inconel
ELEMENT 316L SS Hastelloy, Alloy 20, Monel, Inconel
HOUSING C.S / SUS304 / SUS316 / ALUMINUM Hastelloy, Alloy 20, Monel, Inconel
HOOD 304 SS / 316SS 316L SS
BOLT and NUT C.S / 304 SS / 316 SS 316L SS

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-FA25T is recommended for vertical installation in closed piping systems or venting to atmosphere.

DRAWING AND DIMENSION

SIZE N.D H L
2” 50 270 250
3” 80 285 285
4” 100 320 320
6” 150 370 370
8” 200 405 405
10” 250 470 470
12” 300 530 530

UNIT : mm