Oxygen Flame Arrestor
Oxygen Flame Arrestor
Oxygen flame arrestor is the oxygen pipeline valve before and after the flame arrestor, using special copper alloy and stainless steel welding. Most of them are made of solid material that can pass through many tiny, uniform or uneven channels or pores of the gas, and these channels or pores are required to be as small as possible, so small that as long as they can pass through the flame. In this way, the flame into the flame arrester will be divided into many small flame stream is quenched. The flame can be extinguished by the mechanism of heat transfer and wall effect.
Technical Specifications
FP/FPV type oxygen flame arrestor is designed and manufactured by applying the principle that the flame is extinguished due to heat loss when it passes through the narrow aperture of the heat conductor. The flame arrestor has gravel type, wire mesh type or corrugated type. Used in metallurgy, chemical industry and other industries of oxygen transmission pipeline, can effectively cut off the high-speed gas flow due to debris and pipe wall friction generated by the rapid fire source, to prevent the occurrence of pipeline combustion and explosion accidents. Users can directly connect this product with the appropriate part of the oxygen pipeline welding to run.
Main Performance:
Blast resistance performance is qualified, each of the 13 consecutive blast resistance performance test can stop the fire.
Burning performance is qualified, burning test 1 hour without tempering phenomenon.
Shell hydrostatic test is qualified.
Structural Characteristics：
This product has reasonable structure, light weight and corrosion resistance. Easy maintenance and installation. The flame arrestor core is made of stainless steel, corrosion-resistant and easy to clean.
It is suitable for combustible gas pipeline, oil storage and irrigation or torch system, gas purification system, gas analysis system, coal mine discharge system, heating furnace fuel gas pipeline network, also available in acetylene, oxygen, nitrogen, natural gas pipeline supplies. This valve can be used together with breathing valve or separately.
Oxygen flame arrestor can prevent the flame from continuing to spread and force the flame to extinguish one of the factors is the role of heat transfer. Flame arrestor is composed of many small channels or pores, when the flame enters these small channels after the formation of many small flame flow. Because the channel or pore heat transfer area is very large, the flame through the channel wall for heat exchange, the temperature drops to a certain extent when the flame is extinguished.
Tests have shown that when the thermal conductivity of the flame arrester material is increased by 460 times, its extinguishing diameter is only changed by 2.6%. This shows that the material problem is secondary. That is, the role of heat transfer is to extinguish the flame of a reason, but not the main reason. But in the selection of materials should be considered in its mechanical strength and corrosion resistance and other properties.
Technical Parameters:
Material Of Flame Retardant Layer:
Silicon Copper
Explosion-proof Level:
BS 5501 | IIA | IIB | IIC
Flange Standard:
GB | HG | SH | HGJ | JB | ANSL | JIS And Other Standards
| Nominal Diameter(DN) | 15 to 500 | ||
| Nominal Pressure(MPa) | 1.6 | 2.5 | |
| Test Pressure(MPa) | Dissociation | 2.4 | 3.75 |
| Seal | 1.76 | 2.75 | |
| Applicable Medium | Oxygen | ||
| Flame Retardant Medium | Copper | ||
| Connector Material | Stainless Steel | ||
| Nominal Diameter(DN) | FP-XT Oxygen Pipeline Flame Arrestor | FPV-XT Oxygen Pipeline Valve Before And After The Flame Arrestor | ||||
| Model Specification | D | L | Model Specification | D | L | |
| 15 | FP-1.5T | 18 | 600 | FP-1.5T | 18 | 1600 |
| 20 | FP-2.0T | 25 | 600 | FP-2.0T | 25 | 1600 |
| 25 | FP-2.5T | 32 | 600 | FP-2.5T | 32 | 1600 |
| 32 | FP-3.2T | 38 | 600 | FP-3.2T | 38 | 1600 |
| 40 | FP-4.0T | 48 | 600 | FP-4.0T | 48 | 1600 |
| 50 | FP-5.0T | 57 | 700 | FP-5.0T | 57 | 1700 |
| 65 | FP-6.5T | 76 | 700 | FP-6.5T | 76 | 1700 |
| 80 | FP-8.0T | 89 | 700 | FP-8.0T | 89 | 1700 |
| 100 | FP-10T | 108 | 700 | FP-10T | 108 | 1700 |
| 125 | FP-12.5T | 133 | 700 | FP-12.5T | 133 | 1700 |
| 150 | FP-15T | 159 | 800 | FP-15T | 159 | 1800 |
| 200 | FP-20T | 219 | 800 | FP-20T | 219 | 1800 |
| 250 | FP-25T | 273 | 800 | FP-25T | 273 | 1800 |
| 300 | FP-30T | 325 | 800 | FP-30T | 325 | 1800 |
| 350 | FP-35T | 377 | 800 | FP-35T | 377 | 2050 |
| 400 | FP-40T | 426 | 800 | FP-40T | 426 | 2300 |
| 450 | FP-45T | 480 | 800 | FP-45T | 480 | 2550 |
| 500 | FP-50T | 530 | 800 | FP-50T | 530 | 2800 |
Technical Parameters:
This valve can be used with breathing valve, can also be used alone.
The flow direction marking on the flame arrestor must be consistent with the medium flow direction.
It should be inspected every half a year. Check whether the flame arrestor is blocked, deformed or corroded and other defects.
Re-installation of the firestop, should be updated gasket and confirm that the sealing surface has been clean and undamaged, no air leakage.
The blocked firestop layer should be cleaned to ensure that each orifice is smooth, for deformation or corrosion of the firestop layer should be replaced.
When cleaning the core parts of the flame arrester, high pressure steam, non-corrosive solvents or compressed air should be used to blow, and sharp hardware should not be used for brushing.
In order to ensure that the performance of the firestop meets the purpose of use, before installing the firestop, it is necessary to carefully read the instructions provided by the manufacturer and carefully check whether the labeling is consistent with the requirements of the installed pipeline.
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