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- Kurdistan-Iraq Oil & Gas (KIOG) 2016
Kurdistan-Iraq Oil & Gas (KIOG) 2016Kurdistan-Iraq Oil & Gas Conference & ExhibitionDate: 12/5/2016 – 12/7/2016Venue: Hilton Park Lane, London, United KingdomPlease note ! All dates are subject to changes.For the 6th consecutive year, the premier and largest strategic event in the history of the Kurdistan Region returns to London. Backed by the Kurdistan Regional Government and the Ministry of Natural Resources of Kurdistan – the driving forces for the economic development of the Region, this event truly is the gateway to Kurdistan’s oil and gas industry as well as other exciting up and coming opportunities. Be partner of choice for both the Government and the international super majors and work together for a prosperous future, be part of the event for the Region of incredible discoveries, one of the significant onshore hydrocarbon frontiers on earth and one of the world’s most exciting powerhouses. Event news: Website: http://www.cwckiog.com/Future Dates:Kurdistan-Iraq Oil & Gas (KIOG) 20172017-12London, United KingdomOrganizersCWC Group Ltd.Regent House, Oyster Wharf, 16-18 Lombard Road, London United Kingdom Tel: +44-20-7978 0000 http://www.thecwcgroup.com/Previous Dates:Kurdistan-Iraq Oil & Gas (KIOG) 201511/30/2015 – 12/2/2015London, United KingdomKurdistan-Iraq Oil & Gas (KIOG) 201412/16/2014 – 12/18/2014London, United KingdomKurdistan-Iraq Oil & Gas (KIOG) 201312/2/2013 – 12/4/2013Erbil, IraqKurdistan-Iraq Oil & Gas (KIOG) 201212/3/2012 – 12/5/2012Erbil, Iraq
- What is a eccentric swage nipple
The Eccentric Swage Nipple is designed with precise configurations and is generally known for their close tolerance. This type of swage nipple is perfect for critical applications which involve vibration, high pressure, temperature and impulse. The most common of these swage nipples is to join fittings to pipes or cables. Owing to robust construction, longer service life and easy fittings, these swage nipples loosely fits together and form a permanent joint. Nominal Pipe Size (NPS) Outside Diameter End To End “A” (mm) Nominal Pipe Size (NPS Outside Diameter End To End “A” (mm) Large End (mm)Small End (mm) Large End (mm) Small End (mm) 1/4×1/813.710.3573.1/2×3101.688.92033/8×1/817.110.3644×1/4114.313.72293/8×1/817.113.7644×3/8114.317.12291/2×1/821.310.3704×1/2114.321.32291/2×1/421.313.7704×3/4114.326.72291/2×3/821.317.704×1114.333.42293/4×1/826.710.3764×1.1/4114.342.22293/4×1/426.713.7764×1.1/2114.348.32293/4x3x826.717.1764×2114.360.32293/4×1/226.721.3764×2.1/2114.373.02291×1/833.410.3894×3114.388.92291×1/433.413.7894×3.1/2114.3101.62291×3/833.417.1895×1/4114.313.72791×1/233.421.3895×3/8114.317.12791×3/433.426.7895×1/2114.321.32791.1/4×1/842.210.31025×3/4114.326.72791.1/4×1/442.213.71025×1114.333.42791.1/4×3/842.217.11025×1.1/4114.342.22791.1/4×1/242.221.31025×1.1/2114.348.32791.1/4×3/442.226.71025×2114.360.32791.1/4×142.233.41025×2.1/2114.373.02791.1/2×1/848.310.31145×3114.388.92791.1/4×1/448.313.71145×3.1/2114.3101.62791.1/2×3/848.317.11145×4114.3114.32791.1/2×1/248.321.31146×1/2168.321.33041.1/2×3/448.326.71146×3/4168.326.73041.1/2×148.333.41146×1168.333.43041.1/2×1.1/448.342.21146×1.1/4168.342.23042×1/860.310.31656×1.1/2168.348.33042×1/460.313.71656×2168.360.33042×3/860.317.11656×2.1/2168.373.03042×1/260.321.31656×3168.388.93042×3/460.326.71656×3.1/2168.3101.63042×160.333.41656×4168.3114.33042×1.1/460.342.21656×5168.3141.33042×1.1/260.348.31658×1219.133.43302.1/2×1/873.010.31788×1.1/4219.142.23302×1/473.013.71788×1.1/2219.148.33302.1/2×3/873.017.11788×2219.160.33302.1/2×1/273.021.31788×2.1/2219.173.03302.1/2×3/473.026.71788×3219.188.93302.1/2×173.033.41788×3.1/2219.1101.63302.1/2×1.1/473.042.21788×4219.1114.33302.1/4×1.1/273.048.31788×5219.1141.33302.1/2×273.060.31788×6219.1168.33303×1/888.910.320310×2273.060.33813×1/488.913.720310×2.1/2273.073.03813×3/888.917.120310×3273.088.93813×1/288.921.320310×3.1/2273.0101.63813×3/488.926.720310×4273.0114.33813×188.933.420310×5273.0141.33813×1.1/488.942.220310×6273.0168.33813×1.1/288.948.320310×8273.0219.13813×288.960.320312×2323.860.34063×2.1/288.973.020312×2.1/2323.873.04063.1/2×1/8101.610.320312×3323.888.94063.1/2×1/4101.613.720312×3.1/2323.8101.64063.1/2×3/8101.617.120312×4323.8114.34063.1/2×1/2101.621.320312×5323.8141.34063.1/2×3/4101.626.720312×6323.8168.34063.1/2×1101.633.420312×8323.8219.14063.1/2×1.1/4101.642.220312×10323.8273.04063.1/2×1.1/2101.648.3203 3.1/2×2101.660.3203 3.1/2×2.1/2101.673.0203 Note: “C” dimension is across octagon corners or a diameter as applicable.The 2.1/2″ and 3″ 3000LB and 2″ 6000LB sizes have octagonal male and female ends; the other sizes are round. Applications : Petrochemical Industry Power Industry Nuclear Industry Electronic Industry
- Technology for producing stainless steel flange
Technology for producing stainless steel flange With regard to the core of the stainless steel flange head producing method, we based on gb elbow, such as long radius elbow, will be selected first specification, the pipe material is put forward; The hole enlargement ratio, through theoretical calculation, the general hole enlargement rate between 33% and 35%, push back. And then a series of finishing process, through shot peening processing, remove iron oxide on the surface of the elbow inside and outside, put on both ends of welding groove processing in order to implement. Through the relevant examination, type steel words, after spray paint and packaging, can go to the factory. Stainless steel flange is made of stainless steel. Stainless steel flange is 304, 316 for the material of all kinds of stainless steel flange, including flat welding flange and butt weld flange and so on. It is by the head or a horn core mandrel, mandrel from fine to coarse, push the system process is a process with a curved hole diameter. Back support, under the section through the mandrel, behind a memorial arch frame to fix mandrel. Outside the core rod, induction coil, there is a heat pipe, heat is good, and then push the pipe under the car, good processing a. Described above, is 24 “the following quotation for seamless steel tube as raw materials of elbow production methods, namely later than 24” of more than 600 mm, maximum Angle between 2.032 m to 2.80 m. The production process of the stainless steel flange is basically these situations.
- What is a socket weld reducer insert
Socket Weld Reducer Inserts are manufactured to MSS SP-79. They enable quick and economic combinations of pipeline reductions to be made using standard Socket Weld fittings. The Reducer Insert also support the standard socket welding fittings for making combination of pipe line reductions in a much quicker and economical manner. Our Reducer Inserts are up of superior quality raw material thus they provide the needed strength and durability. Socket weld reducer Inserts availbale in class 3000, 6000 and 9000 Class 3000Class 6000Class 9000Nominal Pipe SizeCDFitting TypeABEFitting TypeABEFitting TypeABE3/8 x 1/40.6750.55517/163/415/1617/167/81 1/2 x 3/80.8500.69017/1613/161 1/1617/1615/161 3/16 1/2 x 1/40.8500.55517/1613/1615/1617/167/81 3/4 x 1/21.0600.85517/167/81 5/1617/161 1/161 3/817/161 3/161 3/43/4 x 3/81.0600.69027/165/8–17/167/81 3/16 3/4 x 1/41.0600.55523/811/16–23/87/8– 1 x 3/41.3251.06519/1615/161 1/219/161 1/81 11/1619/161 1/421 x 1/21.3250.85521/25/8–17/161 1/81 3/817/161 1/81 3/41 x 3/81.3250.69027/1611/16–21/27/8– 1 x 1/41.3250.55523/83/4–23/815/16– 1 1/4 x 11.6701.33019/1611 7/819/161 3/16219/161 3/82 3/81 1/4 x 3/41.6701.06529/1611/16–29/1613/16–19/161 3/1621 1/4 x 1/21.6700.85521/23/4–21/27/8–21/27/8–1 1/4 x 3/81.6700.69027/1613/16–27/1615/16– 1 1/4 x 1/41.6700.55523/87/8–23/81– 1 1/2 x 1 1/41.9101.67519/161 1/82 1/419/161 3/82 3/819/161 5/82 3/41 1/2 x 11.9101.33025/811/16–19/161 3/16219/161 3/82 3/81 1/2 x 3/41.9101.06529/163/4–29/161–29/161–1 1/2 x 1/21.9100.85521/213/16–21/21 1/16–29/161–1 1/2 x 3/81.9100.69027/167/8–27/161 1/8– 2 x 1 1/22.3851.91519/161 1/42 1/219/161 7/82 11/1619/162 1/1632 x 1 1/42.3851.675211/1613/16–27/815/16–19/1622 3/42 x 12.3851.33025/87/8–213/161–213/161–2 x 3/42.3851.06529/1615/16–23/41 1/16–23/41 1/16–2 x 1/22.3850.85521/21–211/161 1/8–211/161 1/8–
- What is a concentric swage nipple
Concentric Swage Nipple is generally used to attach the cables or pipes; the parts are loosely fit together, and hydraulic or mechanical tool compresses and deforms the fittings for building a permanent joint. Nominal Pipe Size (NPS) Outside Diameter End To End “A” (mm) Nominal Pipe Size (NPS Outside Diameter End To End “A” (mm) Large End (mm)Small End (mm) Large End (mm) Small End (mm) 1/4×1/813.710.3573.1/2×3101.688.92033/8×1/817.110.3644×1/4114.313.72293/8×1/817.113.7644×3/8114.317.12291/2×1/821.310.3704×1/2114.321.32291/2×1/421.313.7704×3/4114.326.72291/2×3/821.317.704×1114.333.42293/4×1/826.710.3764×1.1/4114.342.22293/4×1/426.713.7764×1.1/2114.348.32293/4x3x826.717.1764×2114.360.32293/4×1/226.721.3764×2.1/2114.373.02291×1/833.410.3894×3114.388.92291×1/433.413.7894×3.1/2114.3101.62291×3/833.417.1895×1/4114.313.72791×1/233.421.3895×3/8114.317.12791×3/433.426.7895×1/2114.321.32791.1/4×1/842.210.31025×3/4114.326.72791.1/4×1/442.213.71025×1114.333.42791.1/4×3/842.217.11025×1.1/4114.342.22791.1/4×1/242.221.31025×1.1/2114.348.32791.1/4×3/442.226.71025×2114.360.32791.1/4×142.233.41025×2.1/2114.373.02791.1/2×1/848.310.31145×3114.388.92791.1/4×1/448.313.71145×3.1/2114.3101.62791.1/2×3/848.317.11145×4114.3114.32791.1/2×1/248.321.31146×1/2168.321.33041.1/2×3/448.326.71146×3/4168.326.73041.1/2×148.333.41146×1168.333.43041.1/2×1.1/448.342.21146×1.1/4168.342.23042×1/860.310.31656×1.1/2168.348.33042×1/460.313.71656×2168.360.33042×3/860.317.11656×2.1/2168.373.03042×1/260.321.31656×3168.388.93042×3/460.326.71656×3.1/2168.3101.63042×160.333.41656×4168.3114.33042×1.1/460.342.21656×5168.3141.33042×1.1/260.348.31658×1219.133.43302.1/2×1/873.010.31788×1.1/4219.142.23302×1/473.013.71788×1.1/2219.148.33302.1/2×3/873.017.11788×2219.160.33302.1/2×1/273.021.31788×2.1/2219.173.03302.1/2×3/473.026.71788×3219.188.93302.1/2×173.033.41788×3.1/2219.1101.63302.1/2×1.1/473.042.21788×4219.1114.33302.1/4×1.1/273.048.31788×5219.1141.33302.1/2×273.060.31788×6219.1168.33303×1/888.910.320310×2273.060.33813×1/488.913.720310×2.1/2273.073.03813×3/888.917.120310×3273.088.93813×1/288.921.320310×3.1/2273.0101.63813×3/488.926.720310×4273.0114.33813×188.933.420310×5273.0141.33813×1.1/488.942.220310×6273.0168.33813×1.1/288.948.320310×8273.0219.13813×288.960.320312×2323.860.34063×2.1/288.973.020312×2.1/2323.873.04063.1/2×1/8101.610.320312×3323.888.94063.1/2×1/4101.613.720312×3.1/2323.8101.64063.1/2×3/8101.617.120312×4323.8114.34063.1/2×1/2101.621.320312×5323.8141.34063.1/2×3/4101.626.720312×6323.8168.34063.1/2×1101.633.420312×8323.8219.14063.1/2×1.1/4101.642.220312×10323.8273.04063.1/2×1.1/2101.648.3203 3.1/2×2101.660.3203 3.1/2×2.1/2101.673.0203 Note: “C” dimension is across octagon corners or a diameter as applicable.The 2.1/2″ and 3″ 3000LB and 2″ 6000LB sizes have octagonal male and female ends; the other sizes are round. Applications : Nuclear Industry Electronic Industry Construction Industry Engineering industry Power Industry
- What is a socket weld pipe cap
Socket weld pipe caps are the pipe fittings, usually liquid or gas tight, which covers the end of a pipe. A socket weld pipe cap is used like plug, except that the pipe cap screws or attaches on the male thread of a pipe. Nominal Diameter Depth of SocketDimension of Socket Wall Thickness End Wall Thickness Cmin Kmin DN NPS Jmin d13000LB6000LB9000LB3000LB6000LB3000LB Sch80 Sch160 XXS Sch80 Sch160 XXS 6 1/8 1010.7 3.2 3.5 –5.06.5–81/41014.13.34.0–5.06.5–103/81017.53.54.4–5.06.5–151/21021.84.15.28.26.58.011.0203/41327.44.36.18.66.58.012.52511334.25.07.010.09.511.014.0321.1/41342.95.37.010.69.511.014.0401.1/21348.35.67.811.211.012.516.05021361.16.19.512.212.516.019.0652.1/21676.9(73.8)7.712.5–16.019.0– 8031689.88.3 13.8 –19.022.0– 100 4 19115.5 9.4 – –22.028.5–
- What is socket weld union
A socket weld union is a weld used when attaching socket flanges to iron pipe. The socket flange allows two different-diameter pipes to be connected together and retain a high-flow characteristic. Exactly as the name implies, the socket weld union actually welds a pipe into a recessed socket fitting in the socket flange, creating a high-strength socket weld union capable of withstanding high pipeline pressure without connection failure. Once the pipe is pushed into the flange, the socket weld union is used to surround the outside diameter of the pipe, fusing the two components together as a single component. The weld varies from a common butt weld in that it surrounds a small-diameter pipe where it enters a larger-diameter pipe, instead of simply joining two equally-sized surfaces together. When making a socket weld union, it is imperative that the inner pipe not be pushed completely into the larger pipe so that it bottoms out in the socket. Failure to pull the inner pipe slightly off of the bottom surface of the socket can result in stress failure of the socket and the weld. This damage occurs when the heat from the welding procedure causes the two pipes to expand. Without a small gap between the bottom of the inner pipe and the bottom of the socket, the two could make contact and push against each other, thereby compromising the integrity of the socket weld union. Nominal Diameter Outside Diameter Wall Thickness Socket Bore Water way Bore Depth of Socket Length Assem Nominal Dmin Cmin d1 d2 Jmin L DN NPS Socket Threaded Socket Threaded Socket Socket & Threaded Socket Socket & Threaded 6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.4 8 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.0 Stainless Steel Socket Weld Union ASTM / ASME SA A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L Carbon Steel Socket Weld Union ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2 Alloy Steel Socket Weld Union ASTM / ASME A182 F1/ F5/ F9/ F11/ F22/ F91 Nickel Alloy Socket Weld Union ASTM / ASME SB 336 UNS 2200 (NICKEL 200) , UNS 2201 (NICKEL 201 ) , UNS 4400 (MONEL 400 ) , UNS 8020 ( ALLOY 20 / 20 CB 3 ) , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 (INCONEL 601) , UNS 6625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276) Copper Alloy Steel Socket Weld Union ASTM / ASME SB 111 UNS NO. C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 , C 71500 ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30) Duplex Steel Socket Weld Union ASTM A 182 – F 51, F53, F55 S 31803, S 32205, S 32550, S 32750, S 32760
- Factors for the selection of fastener for stainless steel flange
When selecting a stainless steel flange connection with fasteners, pipeline operating pressure, operating temperature ought to be considered at the same time, medium type and gasket type and other factors. Gasket type and operating pressure, operating temperature, directly to the fastener material strength of duplex stainless steel flange requirements are put forward. For example, the spiral wound gasket seal of low toxic medium pipeline flange connection, although the pipeline operation pressure and temperature is not high, but because of the spiral wound gasket needed to form the initial seal than pressure, which requires fastener load is big, Therefore, in this case requires fasteners with high strength alloy steel materials. Alloy steel stud shall adopt high quality steel. The material mark after all should add letters A, such as 35 crmoa, 25 crmova according to different structure, the bolt can be pided into hexagon head bolts and stud (also known as the stud) two kinds, the stud is pided into two kinds of harness and the harness. Hexagon head bolts: often used with stainless steel flat welding flange and non-metallic gaskets with milder conditions for operation. Commonly used material is BL3 or hex head bolt is Q235B; Stud: often used with butt welding flange at the operating condition is harsh working conditions, among them, because there is no cross section shape on the harness type stud, so its bearing capacity is strong. Rather than type harness stud is relatively weak bearing capacity. Nut materials often according to and cooperate with bolt material, these combinations have provisions in the general standard. Under normal circumstances, the nut material should be slightly below the bolt, and ensure the nut hardness is lower than bolt hardness HB30 around.
- What is the PN of the stainless steel flange
What is the PN of the stainless steel flange PN is the nominal pressure is MPa, said the unit in the international system of units, in the engineering unit system is kgf/cm. The nominal pressure of determine not only according to the maximum working pressure, according to the maximum operating temperature and material characteristics, rather than simply meet the nominal pressure greater than the pressure of work. Stainless steel flange and a parameter is DN, and DN is parametric representation of stainless steel flange size. Use special stainless steel flange manufacturers share stainless steel flange structure: Stainless steel flat welding flange: used for medium conditions more relaxed, such as low non clean compressed air, low pressure circulating water and its advantages are relatively cheap price. Stainless steel butt welding flange: a kind of the most commonly used, it and the pipe butt welding connection, welding joint quality is better, and the neck of the stainless steel flange using taper transition can withstand harsh conditions; Stainless steel socket welding flange: stainless steel used in PN is less than 10.0MPa, DN is less than or equal to 40 in the pipeline; stainless steel loose flange: commonly used in medium temperature and pressure are not high and medium corrosive condition. When the corrosive medium is strong, stainless steel flange contact with the medium part (flange short) for high-grade corrosion resistant materials such as stainless steel material, and the external is the use of low grade materials such as stainless steel flange ring clamp it in order to achieve sealing; Overall: stainless steel flange is often stainless steel flanges and equipment, pipes, fittings and valves are made into a whole, this type of equipment and valves used in.
- Functions of various types of stainless steel bars
316L stainless steel bar: 316 stainless steel containing molybdenum and low carbon content, in the marine and chemical industry in the environment of the point of corrosion resistance of the earth is better than 304 stainless steel (316L low carbon, 316N nitrogen high strength, high sulfur content of 316F stainless steel, easy to cut stainless steel. 304L stainless steel bars: as 304 stainless steel with low carbon, in general, resistant to corrosion and 304, but after welding or eliminate stress, the resistance to intergranular corrosion ability outstanding, without heat treatment, also can keep good resistance to corrosion. 304 stainless steel bar: with good corrosion resistance, heat resistance, low temperature strength and mechanical properties, stamping, bending and other thermal processing is good, no heat treatment hardening phenomenon. Uses: tableware, cabinets, boilers, auto parts, medical equipment, building materials, food industry (using temperature -196 degrees C-700 degrees C). 310 stainless steel bars: main features: high temperature, generally used in the boiler, automobile exhaust pipe. Other special steel flange performance. 303 stainless steel bars by a small amount of sulfur and phosphorus added to more than 304 cutting, and other properties similar to 304. 302 stainless steel bars: 302 stainless steel rods are widely used in aerospace, auto parts, hardware tools, chemical. The details are as follows: crafts, bearing, slide flower, medical instruments, appliances etc.. Characteristics: 302 stainless steel balls to austenitic steel, and close to 304, but the hardness of 302 higher, HRC is less than or equal to 28, with good anti rust and corrosion resistance. 301 stainless steel bars: good ductility, used for forming products. Can also be machined to rapid hardening. Good weldability. Abrasion resistance and fatigue strength than 304 stainless steel. 302 stainless steel balls are austenitic steel, and close to 304, but the hardness of 302 higher, HRC is less than or equal to 28, with good anti rust and corrosion resistance.
- CONVERSION FORMULAS
CONVERSION FORMULAS To Convert Multiply by to Obtain Meters X 3.28 = Feet Meters X 39.37 = Inches Centimeters X 0.3937 = Inches Millimeters X 0.0394 = Inches Feet X 0.3048 = Meters Feet X 30.48 = Centimeters Feet X 300.48 = Millimeters To Convert Multiply by to Obtain Inches X 2.54 = Centimeters Inches X 25.4 = Millimeters (mm) Pounds (lbs) X 0.45392 = Kilograms (kg) Pounds (lbs) X 453.592 = Grams (g) Kilograms (kg) X 2.20462 = Pounds (lbs) Kg/cm² X 14.22 = lbs/sq.in. lbs/sq.in. X 0.7031 = Kg/cm² .
- There are several types of flange sealing surface
There are three kinds of flange sealing surface model: planar seal face, is suitable for the occasion of pressure is not high, medium non-toxic; Concave-convex sealing surface, suitable for pressure slightly higher occasion; Mortise sealing surface, suitable for flammable, explosive, toxic medium and high pressure situation. Gasket is a kind of can produce plastic deformation, and has certain strength rings made of materials. Most gaskets from non-metallic plate cutting down, or produced by professional factory in accordance with the provisions, the size, the material of asbestos rubber sheet, asbestos board, PE board, etc.; Also useful sheet metal (tin, stainless steel) will be made of asbestos etc. Nonmetal material wrapped metal gasket. Another with steelskin belt with asbestos tape winding of spiral wound gasket. Ordinary rubber gasket is suitable for the occasion of temperature below 120 ℃; Asbestos rubber gasket suitable for vapor temperature below 450 ℃, the oil temperature is below 350 ℃, pressure is lower than 5 mpa, for general corrosive medium, the most commonly used is acid-proof asbestos board. According to the connection parts of flange and flange can be pided into the container. According to the structure, special steel flange with integral flange, flange and threaded flange. Common integral flange are flat welding flange and butt welding flange. It can be made of casting and become, also can be made up of threaded connection or welding. By a flange (flange, flange connection to be), a gasket and a number of bolt and nut. The gasket in between the two flange sealing surface and tighten nut, washer on the surface of a pressure deformation after reaching a certain value, fill and seal surface uneven, not to join together. Flange connection is a detachable connection.