Drawer type flame arresting mainly has the characteristics of convenient cleaning. When cleaning, it is not necessary to fold the flame arresting from the pipe. Just remove the bolt on the side and take out the fire retardant plate. Drawer type flame arresting is a safety device used to prevent the flame of flammable gas and liquid from spreading and igniting and causing an explosion. It is commonly used in tanks or pipelines that transport or discharge flammable flammable gases. Such as torches, heating combustion systems, petroleum gas recovery systems or other flammable systems. Drawer type flame arresting is a safety device used to prevent the flame spread of flammable gas and liquid and prevent tempering, which can prevent external flame from entering the equipment, pipeline or flame that contains flammable and explosive gas. Equipment and pipelines are stretched. It is a safety device used to prevent the flame from spreading outwards. It consists of a solid material (fire-blocking element) that can pass through a gas and has many small passages or slits.
The utility model has the advantages of compact structure, high reliability, easy maintenance, convenient installation, explosion-proof core parts, explosion-proof, anti-corrosion, strong fire resistance and easy cleaning, and is particularly suitable for special mediums such as hydrogen, oxygen, liquefied gas and the like. The 13 consecutive detonation performance tests can prevent fire at each time; the fire resistance is qualified, the flammability test is not tempered for 1 hour, and the shell water pressure test is qualified.
DN
Inch
Width(L/mm)
Height（H/mm）
40
1-1/2”
210
190
50
2”
220
200
65
2-1/2”
230
210
80
3”
250
220
100
4”
270
240
125
5”
330
270
150
6”
340
280
200
8”
400
310
Model
ZHQ-2I
Size
DN25-DN350 PN0.6-PN2.5
Body Material
CS 304 316 316L
Guide Rod
304 316 316L
Bolt /Nut
CS 304 316 316L
Gasket Seal
Graphite gasket
Medal gasket PTFE
Explosion Group
BS 5501:IIA IIB IIC
Ambient Temper
CS：-30℃~+350℃
SS：-80℃~+350℃
Joint Type
Flange Threaded
Flange Standard
JB GB HG ANSI SH JIS
Manufacture Standard
GB5908-86 GB/T13347-1992
Coating
CS: paint SS: NO Paint
In order to ensure the performance of the drawer type flame arresting to achieve the purpose of use, before installing the flame arresting, you must carefully read the instructions provided by the manufacturer, and carefully check whether the label and the installed pipeline requirements are consistent. The flow direction mark on the drawer type flame arresting must be consistent with the flow direction of the medium; check the barrier layer for defects such as blockage, deformation or corrosion every half year; the blocked fire barrier layer should be cleaned to ensure that each hole is unblocked. The deformed or corroded fire barrier layer should be replaced; the drawer flame arresting core should be cleaned with high pressure steam, non-corrosive solvent or compressed air, and should not be brushed with sharp hardware. When re-installing the fire barrier, the gasket should be renewed and the seal surface clean and free of damage and airtight.
The fire resistance of the drawer type flame arresting is tested regularly through 13 consecutive subsonic flame tests, which meets the requirements of national standards. The pipe flame arresting protects the flange sealing surface from wear before leaving the factory, and the plastic protective cover for the import and export. Be sure to remove the blue flange cover before installation.
When ordering, please confirm the following parameters to provide you with the products required by the platform,
1. Nominal diameter 2, working pressure 3. Material 4, flange standard 5. Medium,
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