What are the types of pipeline explosion proof flame arresters and what are the differences?

Pipeline explosion-proof flame arresters are divided into deflagration type and detonation arrest type.

Deflagration flame arrester: It is used to stop the flame from passing through the flame at subsonic speed.

Detonation arrester: It is a flame arrester used to stop the flame from passing at the speed of sound or supersound.

Pipeline explosion-proof flame arrester features:

1. The flame arrester is suitable for storing Class A oil products with lightning less than 28 and Class B oil products with flash point less than 60, such as gasoline, kerosene, light diesel oil, benzene, toluene and other oil products and chemical raw material storage tanks;

2. The flame arrester can organize the flame with a speed of no more than 45m s to pass through;

3. The flame arrester can withstand the hydrostatic test;

4. The flame arrester must undergo 13 consecutive explosion-proof performance tests, and each time it can resist fire, and the flame retardant performance is qualified;

5. The flame arrester is burn-resistant for 1h without tempering, and the burn-resistance performance is qualified;

6. Simple structure and easy installation;

7. It can be used with breathing valve or alone.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Overview of Pipeline Flame Arresters:

GZW-1 deflagration pipeline flame arrester is a new type of combustible gas pipeline flame arrester, which is a new generation of new products. The flame arrester has been jointly tested by the University of Science and Technology of China and Tianjin Fire Science Research Institute, and its performance fully complies with the provisions of GB13347-92 "Fire Retardant Performance and Test Methods of Oil Gas Pipeline Flame Arresters". The flame arrester has a reasonable structure, and the flame arrester layer is made of stainless steel material, which is corrosion-resistant and easy to clean.

The shell is made of stainless steel, carbon steel and other materials, which can meet the needs of various process pipelines.

Performance and characteristics of pipeline flame arrester:

The flame arrester has reasonable structure, light weight, corrosion resistance, and qualified explosion resistance, and can resist fire every time it has been tested by subsonic flame for 13 consecutive times.

The flame arrester is easy to access and easy to install. The burn-resistance performance is qualified, and there is no tempering phenomenon in the burn-resistance test for 1 hour.

The flame arrester core is made of stainless steel, which is corrosion-resistant and easy to clean. The shell hydrostatic test is qualified.

Scope of application of pipeline flame arrester:

The flame arrester is suitable for pipelines, class A with a flash point of less than 28, oil, hydroxide liquefaction and kerosene, diesel, methyl benzo** with a flash point of less than 60, etc., on pipelines that transport flammable gases, flare series, oil and gas systems, heating furnace fuel gas pipeline networks, gas purification and ventilation systems, gas analysis systems, and coal mine gas emission systems.

Pipe flame arrester parts material:

Body material. Carbon steel WCB, stainless steel,

Flame retardant core material.

Stainless steel explosion-proof flame-retardant corrugated plate.

Seal material.

Oil-resistant asbestos rubber, PTFE ambient temperature

Nominal pressure (mpa).

Explosion-proof level. bs5501:ⅱa、ⅱb、ⅱc

Pipe flame arrester national standard flange connection dimensions:

GB and JB specifications. Installation size (mm) dk

dlhn-ddn20

dn25dn32

dn40dn50

dn65dn80

dn100dn125

dn150dn200

1. The explosion-proof performance is qualified, and the 13 consecutive explosion-proof performance tests can be fire-resistant each time.

2. The burn-resistance performance is qualified, and there is no tempering phenomenon in the burn-resistance test for 1 hour.

3. The shell hydrostatic test is qualified. This product has reasonable structure, light weight and corrosion resistance. Easy to access and easy to install. The flame arrester core is made of stainless steel, which is corrosion-resistant and easy to clean.

Article 131 of the Regulations for Technical Supervision of Pressure Pipeline Safety - Industrial Pipelines stipulates that pipeline flame arresters shall generally be installed at the designated position of the pipeline system under any of the following circumstances:

1. Convey mixed gas pipelines that may produce deflagration or detonation;

2. Conveying gas pipelines that can decompose by themselves and cause flames to spread;

3. The pipeline of combustible gas after depressurization connected to the open flame equipment (water sealing device can be set up in special circumstances);

4. The exhaust gas pipeline before entering the torch head.

Pipeline flame arresters.

Introduction to pipeline flame arresters.

Pipeline flame arrester, also known as fire arrester, the function of flame arrester is to prevent external flames from escaping into equipment and pipelines containing flammable and explosive gases or to prevent flames from spreading between equipment and pipelines. Flame arresters are designed and manufactured by applying the principle that when the flame passes through the narrow pores of the thermal conductor, it is extinguished due to heat loss. The flame arrester structure of the flame arrester is gravel, wire mesh or corrugated.

It is suitable for combustible gas pipelines, such as gasoline, kerosene, light diesel oil, benzene, toluene, ** and other oil storage and irrigation or flare systems, gas purification and ventilation systems, gas analysis systems, coal mine emission systems, heating furnace fuel gas pipeline networks, and can also be used in acetylene, oxygen, nitrogen pipeline supplies. This valve can be used in conjunction with a breathing valve or as a stand-alone valve. This type of valve should generally be installed horizontally or vertically in the pipeline according to the working conditions.

Main performance of pipeline flame arrester.

1. The explosion-proof performance is qualified, and the 13 consecutive explosion-proof performance tests can be fire-resistant each time.

2. The burn-resistance performance is qualified, and there is no tempering phenomenon in the burn-resistance test for 1 hour.

3. The shell hydrostatic test is qualified. This product has reasonable structure, light weight and corrosion resistance. Easy to access and easy to install. The flame arrester core is made of stainless steel, which is corrosion-resistant and easy to clean.

Summary. It's the device. Chinese name pipe flame arrester alias fire arrester fire barrier layer structure gravel type, wire mesh type or corrugated type suitable for combustible gas pipeline catalog 1 Introduction 2 Flame arrester installation instructions 3 Main performance:

4 Standard Overview5 Working Principle6 Classification7 Repair and Maintenance8 Introduction to the Scope of Application Broadcast Fan flame arrester flame arrester is designed and manufactured by applying the principle that the flame is extinguished due to heat loss when it passes through the narrow pores of the thermal conductor. The flame arrester structure of the flame arrester is gravel, wire mesh or corrugated. It is suitable for combustible gas pipelines, such as gasoline, kerosene, light diesel oil, benzene, toluene, ** and other oil products storage and irrigation or flare systems, gas purification and ventilation systems, gas analysis systems, coal mine gas emission systems, heating furnace fuel gas pipeline networks, and can also be used in acetylene, oxygen, nitrogen, natural gas pipeline supplies.

This valve can be used in conjunction with a breathing valve or as a stand-alone valve. This type of valve should generally be installed horizontally or vertically in the pipeline according to the working conditions.

It's the device. Chinese name pipeline flame arrester alias fire arrester fire barrier layer structure gravel type, wire mesh type or corrugated type suitable for combustible gas pipeline catalog 1 Introduction 2 Flame arrester installation instructions 3 Main performance: 4 Standard overview 5 Working principle 6 Classification 7 Repair and maintenance 8 Introduction to the scope of application Broadcast Fan flame arrester flame arrester is designed and manufactured by applying the principle that the flame is extinguished due to heat loss when the flame passes through the narrow pores of the thermal conductor.

The flame arrester structure of the flame arrester is gravel, wire mesh or corrugated. It is suitable for combustible gas pipelines, such as gasoline, kerosene, light diesel oil, benzene, toluene, ** and other oil products storage and irrigation or flare systems, gas purification and ventilation systems, gas analysis systems, coal mine gas emission systems, heating furnace fuel gas pipeline networks, and can also be used in acetylene, oxygen, nitrogen, natural gas pipeline supplies. This valve can be used in conjunction with a breathing valve or as a stand-alone valve.

This type of valve should generally be installed horizontally or vertically in the pipeline according to the working conditions.

Repair and maintenance broadcast 1, in order to ensure that the performance of the flame arrester achieves the purpose of use, before installing the flame arrester, it is necessary to carefully read the instructions provided by the manufacturer, and carefully check whether the label is consistent with the requirements of the installed pipeline. 2. The flow direction mark on the flame arrester must be consistent with the flow direction of the medium. 3. It should be inspected every six months.

Inspect the fire barrier for defects such as blockage, deformation, or corrosion. 4. The blocked fire-blocking layer should be cleaned to ensure that each eyelet is unblocked, and the deformed or corroded fire-blocking layer should be replaced. 5. When cleaning the core parts of the flame arrester, it should be purged with high-pressure steam, non-corrosive solvent or compressed air, and should not be brushed with sharp hardware.

6. When reinstalling the fire barrier layer, the gasket should be updated and the sealing surface should be confirmed to be clean and without damage, and no air leakage should be allowed.

Fire dampers. It is used for ventilation ducts and other passages with different fire partitions.

as a setting for fire separation. The effect is that when a fire occurs in a fireproof zone, the fire spreads along the pipeline, and when the heat-sensing components of the fire damper in the pipeline sense a certain temperature, the valve disc will be closed. In this way, the fire will not spread to another fire zone and will not spread.

Flame arresters. It is mainly used in the transmission pipeline of flammable liquids and gases. It is to eliminate the flame in the pipe by means of a flame retardant core.

If you prevent the gas flame from spreading throughout the network. Flame arresters can also be used in pipelines with open flame equipment to prevent flashbacks, such as acetylene thermal cutting, or other thermally worked pipes.

Flame arrester is a safety device used to stop the flame spread of flammable gases and liquids and prevent backfire. Flame arresters are typically installed in tanks and pipelines that convey or vent flammable and explosive gases. For example, gasoline, kerosene, light diesel oil, benzene, toluene, ** and other oil storage tanks or flare systems, gas purification and ventilation systems, gas analysis systems, coal mine gas emission systems, heating furnace fuel gas pipeline networks, can also be used in acetylene, oxygen, nitrogen, natural gas pipeline supplies.

This product can be used in conjunction with a breathing valve or as a stand-alone product.

Explosion-proof flame arresters are several more layers of flame retardant cores than explosion-proof flame arresters.