Welded Neck Flange

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50 Tons m.t.

Supply Capability:: 5000 Tons per Year m.t./month

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Detailed Product Description

material for carbon steel, stainless steel and alloy steel, such as ASTM A105, A182, A350, A694, ST35.8, ST45.8, ST37.2, C22.8,

The production base total area is about 82,300 square meters.The annual production capacity is more than 9000 tons, with fine processing technology and advanced detection means.

The company has passed Rhine, Germany(TüV) ISO9001 quality management system certification , European pressure equipment and materials PED97/23/EC certification and German pressure equipment and materials AD2000-WO certification. It has also passed the pressure pipe components manufacturing safety registered certification of the State Quality Inspection Administration and classification societies certified .So a more effective guarantee is provided for the quality of the products.It has become the one of the enterprises firstly through the certification in the industry.It plays an important leading role in the industry.

The high-quality products are widely used in petroleum, chemical, metallurgy, electric power, ship, natural gas , pipeline industries and so on.It has won the users good evaluation.At the same time,the products are exported to Europe and the United States, the Middle East, Africa and South-East Asia regions and other countries.

Q: What is the flange palace?: It should be the flange pipe, right?

Q: What is the distance between bolts and holes for fire exhaust duct?: Ventilation and air conditioning engineering construction quality acceptance specification (GB50243-2002) 4.2.6 stipulates that the medium and low voltage system shall not exceed 150mm, and the high voltage shall not exceed 100mm. Exhaust should be considered under high pressure

Q: Install flange wheel tread is what the advantages and disadvantages of widening: Flange (Taiwan) tire block, after the tire increases, leaving enough space for front wheel steering.At the same time, to strengthen the stability of the whole vehicle.In brief, basically, the front steering of the car front wheel and left and right movement are limited, which is in accordance with the tire width stipulated by the manufacturer.If you use widened tires, the original design of the fender position is not enough, there may be steering when the tires touch the mudguard and frictionTraffic safety will be affected, at this time, the pad method (in fact, such as flange gasket (Taiwan called) tire pad), the front wheel shift (i.e. space) without contact fenders, at the same time, because of the left and right track widened, to improve the stability of the car.

Q: Who knows the connection flange - 2.5 inches RFSO DIN PN 40? What does that mean? What's the country's standard, RFSO?: RFSO is SO/RF, said hubbed, 2.5 inches is equivalent to DN65, i.e. the flange diameter is 76mm, PN40 is the nominal pressure of 400 kg. Elbow DN65 (73) - 73 OD x 2.6 WT is a non-standard elbow with an elbow diameter of 73mm,

Q: The function of steam turbine cylinder flange and bolt heating device: The cylinder of the high temperature steam turbine should bear high pressure and temperature, and the tightness of the joint surface of the cylinder must be ensured. Therefore, the flange of the cylinder must be made wide and thick.In this way, the starting of the turbine will bring about a certain difficulty, that is, a larger temperature difference along the width of the flange. If the temperature difference is too large, the thermal stress will cause the cylinder to deform or produce cracks. Generally speaking, the cylinder is easier to heat than the flange, and the heat of the bolt is transmitted to it through the flange, so the bolt is heated more slowly.For the double cylinder unit, outer cylinder heating cylinder is much slower than the outer cylinder, the flange is more slowly, because the flange temperature rises slowly, hampered the cylinder thermal expansion between the rotor and the cylinder caused by excessive expansion, so that the turbine flow gap, friction.

Q: What is flange connection pile?: Flange connection pile, as the name suggests, is to use flange to meet the pile. The main reason of the pile connection is that the long pile is needed in the construction, but the length of the pile is limited in actual production, so it must be long enough to meet the requirement, so the method that can be used in the construction is the flange connection pile.Flange pile - - in the upper and lower two piles on the flange plate, flange is processing pile foundation is installed in advance, when the connection is directly good to tighten it

Q: The flanges are only round Is it all right?: Yes, we have。 All sorts of look, all. But it's usually round.

Q: What is lined with PTFE stainless steel flanges?: PTFE lined pipe after years of actual use, directly affect the service life and stable performance is temperature, pressure, medium, high quality materials and advanced manufacturing technology is the product quality assurance of PTFE lining. Flange is a large pipe, pipe fittings of a connection, that is, in the connection where there is a wide out of the edge, surrounded by empty, two pieces of flange pairs together, fixed with screws. Stainless steel flanges are made of stainless steel.Lining PTFE pipe anti-corrosion biggest advantage:1., high temperature, {maximum use temperature of 260 degrees.2., strong acid resistance, strong alkali, {pH value between 1~14.3. excellent adhesion, {negative pressure can reach 0.09MPa, vacuum effect.4. long service life {general conditions can be used for 8 to 10 years, the general commitment for 1 years warranty.5., strong penetration resistance, {hydrofluoric acid. Chlorine, bromine, acid and other gases are very good permeability.Requirements for selection of steel pipes and flanges for lined PTFE pipes and fittings1, the national standard pipe seamless steel pipes, due process requirements, the nominal pipe lining inside effective diameter smaller than the pipe diameter, effective flow standard necessary for the designers and users of steel pipe diameter.2, the flange can be based on user needs according to the national standard of HG, GB, JB, ANSI, JIS, BS, DIN etc., can be forged, can also be determined by the contract, because the sealing process suggested the use of welding plate flange, hubbed flange. Is the plane sealing surface of the seal type, in order to facilitate the installation of pipelines, can provide users with flange ring activities.

Q: In the heat treatment, "flange" and "oxidation" there is a difference? Or is it just a different name?: Flange? You should refer to the blue, blue is the surface oxidation of iron and steel materials to achieve a process known as corrosion, because this process surface is blue, also called black, that is black surface. The truth is the formation of the magnetite layer is dense (just because this layer of Baidu is not the same, showing different colors), in order to achieve the corrosion resistance, the corrosion resistance of general corrosion, and the best surface antirust oil.And this oxidation, if it is heat treatment, it generally refers to the metal surface oxidation, corrosion resistance and surface modification role. Yes, oxidation is a more specialized statement, not only for iron and steel parts, but also for aluminum alloys.So in general, blue is a surface treatment process of steel and iron determination, and oxidation is quite broad, if it is oxidation of steel bluing.Of course, the above is only in general circumstances, if there are special circumstances, such as soft nitriding, oxidation before and after oxidation of soft nitriding, that is the process specific, not the general situation.

Q: What is the center distance between flanges?: The flange of the center distance is from one end of the flange of the center section of the center of the reach, for example, a flange sealing surface from the center, and the connecting bolt hole center distance is from the middle of two holes corresponding to the middle, a hole, the most commonly used is the connecting bolt hole center distance the center of the flange, is we often say that the distance, I suggest you look at the hardware manual, I hope to help you.

Our company has strong professional technical force, rich experience, integrated data and advanced equipment, as well as high-quality forging, machine-processing, assembling and packing production lines. Our product quality is in full compliance with both national and international standards, and we have obtained the ISO9001-2000 quality certification. Warmly welcome all to come to visit, investigate and negotiate business.

1. Manufacturer Overview

Location	Shandong,China
Year Established	2008
Annual Output Value
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe Central America Northern Europe Southern Europe
Company Certifications	ISO9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	qingda
Export Percentage	81% - 90%
No.of Employees in Trade Department
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	10,000-30,000 square meters
No. of Production Lines	10
Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range	Low and/or Average