Across the pond, you will find the Deutsches Institute fur Normung (DIN) flange specification, consisting of a variety of European styles which have been unified into one code for the purpose of commonality. Designation as a Din Flange by the German Institute of Standardization assures the user of design quality the way an ASME flange would here in America. Although much less common than ANSI/ASME Steel Flanges in the United States, many of our international customers request flanges to these specifications for a variety of applications such as imported steel vessels, cargo ships, and other infrastructure which may consist of metric pipes/valves and European designed equipment.
The subset flanges under the DIN standard consist of the same style of flanges in the United States, including the most commonly used slip on flanges, weld neck, flanges, and Blind Flanges. Adapter flanges can be custom made to end user requirements for the mating of American flanges to international ones, however we find it is a much more common and easy solution to provide DIN flanges to mate to existing equipment.
The most common metric type flanges fall under the following categories:
DIN 2501 through 2503 for flat ring flanges
DIN 2512 through 2519 for alternate face flanges
DIN 2627 through 2633 for weld neck flanges
DIN 2641 through 2642 for lap joint flanges
DIN 2565 through 2569 for threaded/companion flanges
DIN 2527 for blind flanges
Threaded Flange,Pn25 Thr Flange,Din Thr Flanges,Din Threaded Flange Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.comProduct Application
    Use for purification of the smoke and dust during the welding, polishing, cutting, grinding process and the recycling of rare metals and precious material, can purify large amounts of suspended small metallic particles in the air.
 Operating Principle:
It is equipped with three layer filter system
1, under the help of the fan device, the welding fume is sucked into inlet through sucking hood. There is the flame arrester in the inlet, so the spark can be blocked here, the left fume and dust is sucked into gravity separator, and then the bigger particles firstly descend into dust bag.Â
2, the smaller particles are arrested in the surface of core filter. The cleaner gas then flow into clean room after being purified by core filters.
3, in clean room, the clean gas is then further purified by active carbon. At last, the gas meets the required standards and enters into air or other required room.
The basic Stage Filtration Process about the welding fume extractor
Stage 1: Air passes trhough  the pre-filter fire-proof net.Â
Stage 2: Air passes through a second pre-separator to further reduce medium to heavy particulate matter.Â
Stage 3: Air passes through the LongLife-H filter where welding fume particles are captured and deposited.Â
Stage 4: Activated carbon filter will help prevent or neutralize the release of odors back into the environment.Â
Facility Characteristics
1)       It is equipped overload prevention circle to avoid motor damage. It is of steady performance.Â
2)Â Â Â The operation panel is clear and simple, very easy to operate.Â
3)Â Â Â Â Â Â Pulsing back-flushing automatic dust-removal system: The filter core is the automatic rotating and back-flushing type, which keeps the filter core surface clean when working, to insure the stable blowing rate; the air compressor parts are connected with high pressure rubber pipe with high pressure air-inflow in the bottom, which insure the facility always in good working condition.
4) The filter core is imported from America with long useful life. It can arrest the 0.3μm particles. The filtering effect is good for all kinds of particles including the wet particles.
 5) It is equipped with the all-directions sucking arm of 360 degree rotating. It can suck the fume exactly from the source which make best of the fume collection efficiency, and insure the workers' health in the largest extent.Â
6) It is equipped with three layer filter system to avoid the damage effect of flame and large slag particles, which extend the useful life, safer and more reliable.Â
7) Clean air uniform guidance and dispersed from the grille outlet, to keep the noise minimum.
8) It is attached with all-direction caster wheels, which makes the facility movable freely and easy to position.
9) Photoelectric controlled on/off, energy saving and high efficiency. The hood has the lighting device which is upon customer's choice.Â
10) The parts working condition are all stable and have long useful life, meantime easy to be replaced.Â
Certifications
Detailed
Name:Filter cartridge
Brand:Â HUAXIN
Original:Â China
High filter cartridge imported from USA as the filtering element,PTFE membrane filter,for the adhesion of dust,PTFE caated filter element can filter dust particles reach 0.3um(optional higher level of filtration),the filtration efficiency reached 99.99%.Even if the ambient temperature is lower than the dew point temperature.The filter element also maintains a stable filtration capacity.PTFE membrane filter has the advantages of membrane filtration and rigid body filtration,and small volume,large filtration area of rigid filter allows high working pressure,and has a very long service life.
Name:Â Air collecting coverÂ
Brand:Â HUAXIN
Original:Â China
The unique design of the cover and Fireproof vacuum pipeline can be used to collect smoke and dust in large area. Laser cutting the material, the surface leveling size is accurate. The surface is sprayed on galvanized steel sheet with excellent rust preventive effect.
Name:Â High-quality part
Brand:Â HUAXIN
Original:Â China
Each part is strictly tested, every detail is well done, and the overall quality of the product is improved
Name: Brand fan and silencer cottonÂ
Brand:Â YINNIU
Original:Â ChinaÂ
Brand fan + silencer cotton can minimize noise, reduce occupational injuries and protect your health.
 factory profile
    Jinan Huaxin Automation Engineering Co., Ltd. is a national high-tech enterprise dedicated to providing centralized gas supply system, two or more gas mixing systems and industrial waste gas centralized treatment and purification solutions for modern factories.
    The company has registered capital of 30 million RMB, and has a strong R & D team., has obtained 13 national invention patents, utility model patents more than 40. In 2012, Huaxin Corporation officially established Jinan Huaxin Technology Research and Development Center; in 2013, was awarded Jinan "contract-abiding and credit-worthy enterprises", the same year was awarded "Jinan academician expert Grass-roots Service workstation"; in July 2014 was awarded a certificate of innovation fund for science and technology-based SMEs; in 2016, was awarded a demonstration of intellectual property rights in Shandong Province. Enterprises, in 2017, won the "national intellectual property advantage enterprises".
    As a leading manufacturer of Welding Fume Extractor and Gas Mixture Proportion Cabinet, We are pleased to inform you that we have cooperation with many big companies in the world. 
Packing & Delivery
Packaging
Size
80 (L) *135 (W) * 137 (D)
Weight
200KG
Packaging DetailsFumigated wooden box.
contact us
Product Application
    Use for purification of the smoke and dust during the welding, polishing, cutting, grinding process and the recycling of rare metals and precious material, can purify large amounts of suspended small metallic particles in the air.
 Operating Principle:
It is equipped with three layer filter system
1, under the help of the fan device, the welding fume is sucked into inlet through sucking hood. There is the flame arrester in the inlet, so the spark can be blocked here, the left fume and dust is sucked into gravity separator, and then the bigger particles firstly descend into dust bag.Â
2, the smaller particles are arrested in the surface of core filter. The cleaner gas then flow into clean room after being purified by core filters.
3, in clean room, the clean gas is then further purified by active carbon. At last, the gas meets the required standards and enters into air or other required room.
The basic Stage Filtration Process about the welding fume extractor
Stage 1: Air passes trhough  the pre-filter fire-proof net.Â
Stage 2: Air passes through a second pre-separator to further reduce medium to heavy particulate matter.Â
Stage 3: Air passes through the LongLife-H filter where welding fume particles are captured and deposited.Â
Stage 4: Activated carbon filter will help prevent or neutralize the release of odors back into the environment.Â
Facility Characteristics
1)       It is equipped overload prevention circle to avoid motor damage. It is of steady performance.Â
2)Â Â Â The operation panel is clear and simple, very easy to operate.Â
3)Â Â Â Â Â Â Pulsing back-flushing automatic dust-removal system: The filter core is the automatic rotating and back-flushing type, which keeps the filter core surface clean when working, to insure the stable blowing rate; the air compressor parts are connected with high pressure rubber pipe with high pressure air-inflow in the bottom, which insure the facility always in good working condition.
4) The filter core is imported from America with long useful life. It can arrest the 0.3μm particles. The filtering effect is good for all kinds of particles including the wet particles.
 5) It is equipped with the all-directions sucking arm of 360 degree rotating. It can suck the fume exactly from the source which make best of the fume collection efficiency, and insure the workers' health in the largest extent.Â
6) It is equipped with three layer filter system to avoid the damage effect of flame and large slag particles, which extend the useful life, safer and more reliable.Â
7) Clean air uniform guidance and dispersed from the grille outlet, to keep the noise minimum.
8) It is attached with all-direction caster wheels, which makes the facility movable freely and easy to position.
9) Photoelectric controlled on/off, energy saving and high efficiency. The hood has the lighting device which is upon customer's choice.Â
10) The parts working condition are all stable and have long useful life, meantime easy to be replaced.Â
Certifications
Detailed
Name:Filter cartridge
Brand:Â HUAXIN
Original:Â China
High filter cartridge imported from USA as the filtering element,PTFE membrane filter,for the adhesion of dust,PTFE caated filter element can filter dust particles reach 0.3um(optional higher level of filtration),the filtration efficiency reached 99.99%.Even if the ambient temperature is lower than the dew point temperature.The filter element also maintains a stable filtration capacity.PTFE membrane filter has the advantages of membrane filtration and rigid body filtration,and small volume,large filtration area of rigid filter allows high working pressure,and has a very long service life.
Name:Â Air collecting coverÂ
Brand:Â HUAXIN
Original:Â China
The unique design of the cover and Fireproof vacuum pipeline can be used to collect smoke and dust in large area. Laser cutting the material, the surface leveling size is accurate. The surface is sprayed on galvanized steel sheet with excellent rust preventive effect.
Name:Â High-quality part
Brand:Â HUAXIN
Original:Â China
Each part is strictly tested, every detail is well done, and the overall quality of the product is improved
Name: Brand fan and silencer cottonÂ
Brand:Â YINNIU
Original:Â ChinaÂ
Brand fan + silencer cotton can minimize noise, reduce occupational injuries and protect your health.
 factory profile
    Jinan Huaxin Automation Engineering Co., Ltd. is a national high-tech enterprise dedicated to providing centralized gas supply system, two or more gas mixing systems and industrial waste gas centralized treatment and purification solutions for modern factories.
    The company has registered capital of 30 million RMB, and has a strong R & D team., has obtained 13 national invention patents, utility model patents more than 40. In 2012, Huaxin Corporation officially established Jinan Huaxin Technology Research and Development Center; in 2013, was awarded Jinan "contract-abiding and credit-worthy enterprises", the same year was awarded "Jinan academician expert Grass-roots Service workstation"; in July 2014 was awarded a certificate of innovation fund for science and technology-based SMEs; in 2016, was awarded a demonstration of intellectual property rights in Shandong Province. Enterprises, in 2017, won the "national intellectual property advantage enterprises".
    As a leading manufacturer of Welding Fume Extractor and Gas Mixture Proportion Cabinet, We are pleased to inform you that we have cooperation with many big companies in the world.Â
Packing & Delivery
Packaging
Size
80 (L) *135 (W) * 137 (D)
Weight
200KG
Packaging DetailsFumigated wooden box.
contact us
High Efficiency Purification Equipment Weilding Fume Collector Industrial Dust Collector Vacuum Cleaner
Model NO.: HXYD-ZD30
Filtration Accuracy: 99.9%
Mini Particle Size: 0.3um
Trademark: HX or OEM
Transport Package: Standard Export Packing or Customized
Specification: 650*670*1260
Origin: China
HS Code: 8421392990
Model NO.: HXYD-ZD30
Filtration Accuracy: 99.9%
Mini Particle Size: 0.3um
Trademark: HX or OEM
Transport Package: Standard Export Packing or Customized
Specification: 650*670*1260
Origin: China
HS Code: 8421392990
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2018 Newly High Quality PPR Pipe Fitting Mould