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