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If fast loading y type tee up and down hole measured data has certain deviation, should make the mark in the appropriate position, so that the assembly of the flange, flange into or out in the corresponding position adjustment, in order to ensure fast loading y-shaped three-way mouth keep parallel up and down after the flange assembly. Circle fast loading y-shaped three-way head and branch Angle, regardless of combined seam which way connection, will be have some error after the production. Error of a variety of with a template or steel protractor to checking and measuring. If the error is not big, branch pipe fluently flange according to conventional methods, assembly adjustment measures in matching on the 90 ° long radius elbow; If the error is larger, it is the branch pipe flowing and 90 ° at both ends of the long radius elbow, using the adjustment quantity of stainless steel flange flanging HG20621-97 to ensure that its Angle accurately. Y type tee and flange with round fast assembly, general will head up and down after a chip flanged ball valves set into the mouth, first find is riveting head next mouth, then find is riveted its flowing. If some mouth parallelism error from top to bottom, to be reserved for mark according to the measurement and adjustment of the flange in or out, conform to the requirements after riveting. Riveting 90 ° long radius elbow, if with the combination of fast loading y-shaped three-way Angle error is not big, can be 90 °riveting first one end of the long radius elbow’s flange, with 3 ~ 4 bolts with the only fast loading Y type tee branch pipe connection, make the two flange clearance, with a large square or drop hammer suspension wire with lines measuring the 90 °long radius elbow at the other end verticality of flange to the platform, with adjustment into or out of the flange, make it vertical as shown in figure (b). To confirm after 90 ° long radius elbow’s flange end verticality, but after coloring pen mark in the circumferential direction, remove bolts according to the drilling line after riveting. And the stainless steel flange percussion with a draw. Finalize the design circle fast loading Y type tee with flange is faster than the general assembly of Y type tee is more easy and convenient. Round head and sealing plate type fast loading Y type tee branch pipe are round straight pipe, flange is easy to put on. A chip flanged ball valves inside edge and duct wall joint is better; And plug type circle fast loading y-shaped three-way managers for circle variable diameter tube, and the branch pipe is straight, branch pipe and joint adopts riveting head, its Angle won’t appear too big change. As shown in figure 9-5 (b). More than fast loading of flange assembly with Y type tee, can be a chip flanged ball valves are directly drilling after riveting, if there is a little deviation Angle, for in matching the 90 ° long radius elbow to do some adjustments when riveting.

Round elbow is round bend, is used to change the direction of the ventilation pipe fittings. 90 ° long radius elbow Circular 90 ° long radius elbow central Angle according to need, with double bevel pipe joint and a number of the two socket set with a single bevel. The diameter of the bend to D, R bend radius of curvature, called the union with double oblique mouth “in section”, the ends respectively located in bend a socket with a single bevel, called “nodes”. As cylinder cross section is a circular, the inclined section is an oval, the circumference is different, can’t bite, so the circular 90 ° long radius elbow must at both ends Each set two nodes, so that is connected to a duct. Bend caused by the size of the local resistance, mainly depends on the turning Angle of smoothness. 90 ° long radius elbow smoothness and depends on the size of the bending radius and the number of bend section, bending radius is big, the middle section number, resistance is small, but to take up space, but also more work; Small bending radius, the middle section number less, work less, but big resistance. For the three section, and the sockets of the two nodes. Circular 90 ° long radius elbow. Current rules, general ventilation and air conditioning systems of circular 90 ° long radius elbow bend radius and minimum number of section are shown in table Circular 90 ° long radius elbow method is, according to the known bend diameter, Angle, and determine the bend radius and the number of section, to draw the visual figure, such as the diameter of 320 mm, the Angle is 90 °, the 3 section, two nodes, the circular 90 ° long radius R of 1.5 D bend. First row A 90 ° Angle, mouth, centered on right-angle intersection with known radius is bending radius R, draw the bend axis, axis and right-angle side intersection of E for midpoint, known to bend diameter interception of A and B two points, with 0 as the center of the circle, the point A and point B lead to bend in the outer arc and arc. Because the 90 ° long radius elbow is composed of three section and two nodes, a day for two nodes, in order to obtain nodes in order to expand, 90 ° arc and so on can be pided into 8 equal parts, first at the ends of the two nodes, as in the middle of the three section in six section. Outside of each section and then draw the tangent tangent AD for nodes “back”, the BC for nodes in the “high”, composed of ABCD trapezoid, nodes. Is in commonly 90 ° long radius elbow an actual operation, according to the number of bend section, determine the equal of 90 °, according to the equal Angle and bending radius and bend diameter, can draw the nodes directly. Nodes can be used in front of the introduced method of parallel lines. A good nodes, should let out bite allowance, and then use cutting good nodes or section in the template, ‘according to the need, the number of draw the shear line on the board, with the hand cut shear shear or oscillating curve, take good longitudinal seam, processing into a short tube with oblique mouth. And then bite on the pressure in the elbow out cross bite, bite, pressure should be paid attention to each section into stand-up at one end, on the other side for the mouth. And should pay attention to the sections of the longitudinal bite stagger. Pressure good bite, it can be bend group to the assembly. When assembling, should put the AD on the nipple line and the BC on the line with another sub lines to the AD and BC is, to avoid the 90 ° long radius elbow crooked. Bend the elbow joint machine available or steel hammer to joint on the workbench.

What are orifice flanges? Orifice flanges are for metering the volumetric flow rate of liquids and gasses through a pipe. Two orifice flanges are called an orifice flange union. Each flange comes with two pipe taps for measuring the pressure drop of the flow through an orifice plate. Orifice plates do not come with the flanges and are sized based on the requirements of the process. Two jack screws are used to spread the flanges apart in order to change the orifice plate. This flange is normally available in weld neck, slip-on, and threaded flanges. These flanges have a raised face. Orifice flanges are installed in a straight run of pipe in order to avoid turbulence at the plate. As a rule of thumb, an orifice flange has ten diameters of straight pipe upstream and five diameters of pipe downstream. There are guidelines set out in (American Gas Association) AGA Report #3 which is the Orifice Metering of Natural gas. When installing the orifice plate flange the pressure taps need to be at the same elevation to each other. The assumption when making the calculation for the orifice plate is that static head of the tubes is the same on both sides of the orifice plate. Pressure taps should not be installed facing down as the taps could become plugged with debris in the line. Weld neck orifice flanges are butt-welded into the pipeline. The inside diameter (bore diameter) of the pipe should be specified when ordering. Weldneck orifice flanges are available in ANSI classes 300, 600, 900, 1500 and 2500. They are not available in ANSI 150 sizes because the thickness of ANSI 150 flanges are not enough to allow for drilling pressure taps. MaterialGrade Stainless Steel  ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L  Duplex Steel   ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61  Alloy Steel ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91  Carbon Steel ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70In FormSORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etcSpecializeAs per drawing Value Added Services» CNC Machining  » Customized FlangesStandardANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48Type of Flanges :» Weld Neck Flanges – WNRF » Socket Weld Flanges – SWRF » Slip On Raise Face – SORF » Blind Raise Face – BLRF » Lap Joint Flanges » Screwed (Threaded) Flanges » Long Weld Neck Flanges » Reducing » Spectacle Blind » Ring Joint » Large Dia Flanges » Orifice Flanges » Girth Flange

90 degrees long radius elbow external arc elbow, elbow and elbow in the curved line, the shape of the elbow. Rectangular 904L 90 degrees long radius elbow is composed of two blocks of side wall, elbow back and elbow in four parts. Engineering often used inside and outside the arc shape bend, such limitations of site conditions, the arc shape bend or oblique line of elbow. When the inner arc and the internal oblique line elbow outside long a is more than or equal to 500 mm, so that the air flow distribution, 904L 90 DEG long radius elbow internal flow deflector. The guide plate with rivets assembled in the elbow wall connecting plate, the connecting plate rivet hole spacing is about 200mm. Guide plate material and the thickness of the material and the air pipe, the deflector angle and bending angle, guide vanes in elbow configuration should meet the design requirements, when the design requirements. Deflector on the windward side of the edge should be smooth, and both ends of the wind pipe fixed buy firmly and with an elbow guide taped out of arc length should be consistent. 90 degree long radius elbow can be used to connect the angle of the corner and the joint. In order to prevent the flange in 904L 90 degrees long radius elbow of the arc, can emit flange allowance, the allowance for angle steel flange width and 1omm flanging ‘inner arc almost rectangular elbow wrote in a slash shaped rectangular elbow, except that the different size of the inner side plate, the rest were the same.

What is threaded lateral tee? Threaded lateral tee is a type of pipe fitting,is defined as a part uesd in a piping system,welding a fitting to the pipemeans it is permanently leakproof. General notes: Dimensions are in millimeters unless otherwise indicated. Socket Bore (B) – Maximum and minimum dimensions. Bore Diameter (D) – Maximum and minimum dimensions. Socket wall thickness – (C) – Average of Socket wall thickness. Dimensional tolerances center to bottom of socket – (A) NPS 1/2 and NPS 3/4 = +/- 1.5 mm NPS 1 to NPS 2 = +/- 2 mm NPS 2½ to NPS 4 = +/- 2.5 mm Types of Socket Weld Fittings By Class, Size And Wall ThicknessDescriptionClass Designation300060009000Elbows 45 and 90 degrees, Lateral Lateral Tees, Crosses, Couplings, Half-Couplings, End or Pipe Caps½ – 4½ – 2½ – 2½ – 4½ – 2½ – 2½ – 4½ – 2½ – 2Pipe Size by Wall ThicknessSCH 80 & XSSCH 160XXS

Outdoor water supply stainless steel pipe fittings, when the rain period construction should dig drainage groove, collecting well, ready to pump (submersible pump), pumping equipment such as rubber hose, so that the water pumping, should keep rain water bubble idler, avoid the accident of drift tube, after the completion of the construction should be timely backfill soil. Stainless steel pipe fittings Winter construction, we should pay attention to: (1) for asbestos cement interface, should use hot water mixing material, but not more than 500 c water temperature, such as expansive cement interface, the water temperature should not exceed 350 c; (2) the temperature falls below – 50 c, unfavorable to the above two kinds of material interface, (3) after the interface, can use brine mixing sticky mud off mouth maintenance, and cover a good grass curtain. Also can use warm (not frozen) landfill soil interface heat preservation; (4) testing, the exposed tubes or interface should be cover tightly with careless, no outlet pipe shaft should be backfill, pressure test finished as soon as possible will put clean water, do the preparatory work before the pressure test and pressure testing of water, drainage, etc.

What are lap joint flanges? Lap Joint Flanges (LJ Flanges) or Loose flanges (LF flanges) called are used on piping fitted with lapped pipe or with lap joint stub ends the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges. Their pressure-holding ability is little, if any, better than that of slip-on flanges and the fatigue life of the assembly is only one-tenth that of welding neck flanges. The lap joint flange with the stub end assembly are normally used in systems requiring frequent dismantling for inspection and cleaning and where the ability to swivel flanges and to align bolt holes materially eases the erection of large diameter or unusually stiff piping. Lap Joint flanges have certain special advantages:Freedom to swivel around the pipe facilitates the lining up of opposing flange bolt holes.Lack of contact with the fluid in the pipe often permits the use of inexpensive carbon steel flanges with corrosion resistant pipe. In systems which erode or corrode quickly, the flanges may be salvaged for re-use. Lap Joint Flanges have all the same common dimensions as any other flange named on this page however it does not have a raised face, they used in conjunction with a “Lap Joint Stub End”. Lap Joint Flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End. Their pressure-holding ability is little, if any, better than that of Slip On flanges and the fatigue life for the assembly is only one tenth that of Welding Neck flanges. They may be used at all pressures and are available in a full size range. These flanges slip over the pipe, and are not welded or otherwise fastened to it. Bolting pressure is transmitted to the gasket by the pressure of the flange against the back of the pipe lap (Stub End). Lap Joint flanges have certain special advantages: Freedom to swivel around the pipe facilitates the lining up of opposing flange bolt holes. Lack of contact with the fluid in the pipe often permits the use of inexpensive carbon steel flanges with corrosion resistant pipe. In systems which erode or corrode quickly, the flanges may be salvaged for re-use. Details of Lap Joint Flange 1. Lap Joint flange 2. Stub End 3. Butt weld 4. Pipe or Fitting Lap Joint Flanges are always used with either a stub end or taft which is butt welded to the pipe with the flange loose behind it. This means the stub end or taft always makes the face. The lap joint is favoured in low pressure applications because it is easily assembled and aligned. Size Lap Joint Flanges (Loose Flanges): 3/8″-80″ DN10-DN2000 Pressure America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500. Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400. Flange Facing Types America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ) Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove) Material Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8. Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6 High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70 Standards ASME ANSI B16.5,ASME ANSI B16.47. API 605,API 6L. MSS SP 44 CSA Z245.12 EN1092-1,EN1759-1. DIN2642,DIN2655,DIN2656. BS1560,BS 4504,BS 10. AFNOR NF E29-200-1 ISO7005-1 AS2129 JIS B2220 UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090 Industrial Processes Die forging,Machining. Application for Lap Joint flange(LJ flange) /Loose flanges Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc.

Stainless steel pipe fittings if the outer surface of the dirt, to use clean water rinse, and natural drying. Then use dry cloth soaked in solvent wipe erase oil, put in the open-air drying. Stainless steel tube surface such as a rust and dirt, etc., can be the first to use circular steel wire brush and cloth binding in thick wire or thin steel rope, penetrated into the pipe back and forth pull brushes (large caliber pipe fittings also available hoist and drag brush), and then use steam or water through washing into the, then the compressed air or exhaust fan will blow in pipe can be skimmed. Dry in the tube filled with go to the Pengo (15-20% is filled in the tube degreasing. The end of the first plug is blocked to the volume of solvent debinding band bending pipe should be appropriate to increase the degreasing solvent), and the other end is blocked, flat on the clean or placed in a tie with the work table soak 1 to 1.5 hours, and every 15 minutes to rotate a stainless steel pipe fittings, successive should soak parts (also the tube immersed in the solvent debinding closed long shoot skim), and then the tube in solvent poured out, exhaust fan, or not oily compressed air, nitrogen blow dry, also can be naturally ventilated for 24 hours, in a word must be fully dry. Degreasing treatment after checking each tube degreasing is qualified, examination method, can be skimmed the clean gauze made plug group, tied on the wire, needle penetration nella rub, to see whether there are oil, if necessary should To carry out laboratory tests. After the skim treatment of a few of the old cloth or plastic film must be used to the ends of the package, in order to prevent re contamination of the inner surface. When the pipe has been installed, it should be disassembled into the pipe section without dead end, and then it will be skimmed. After installation, the stainless steel pipe fittings can not be removed must be skimmed before installation, but it must be ensured that the installation process and installation will not be contaminated. stainless steel pipe fittings Concentrated nitric acid plant pipe and equipment, can be installed in all, directly to 98% of the concentration of nitric acid with a pump cycle, pickling (less than or non concentrated nitric acid corrosion of the pipe must be separate skim. Stainless steel ball valves, gaskets and other stainless steel pipe fittings should also be separate from the month before the R. Pickling before the preparation of acid pickling solution, pickling, should be according to the process flow system, first washed, and then acid cycle 2 ~ 4 hours. After the analysis is qualified, then the acid will lead to another system. When the acid containing oil and other organic matter more than 0.03% or acid concentration of less than 90%, should replace the new acid, and waste acid to the underground tank. After passing the pickling, should be timely feed production, in order to avoid dilution of concentrated nitric acid on aluminum equipment and piping caused by corrosion.

Currently we are using lap-joint flanges and welding them directly to the piping.  Is this an appropriate way to use lapped flanges, or should I change to using slip-on flanges. I understand that lapped flanges are generally used with but ends, so as to make it possible to rotate the flange when needed, but do not understand wether or not a lapped flange should be welded or not. Please advise as to the correct use of flanges. lap joint flanges are very similar to a slip-on flange, with the main difference being that it has a curved radius at the bore and face to house a lap joint stub-end. Lap joint flanges and stub-end assemblies are typically used in situations where frequent dismantling is required for for inspection. Slip-on Flanges: Slip-On (SO) Flanges are preferred by some contractors, over the Weld-neck, because of the lower initial cost. However, this may be offset by the added cost of the two fillet welds required for proper installation. The strength of the slip-on flange is ample for it’s rating, but its life under fatigue conditions is considered to be only one-third that of the weld-neck flange. The slip-on flange may be attached to the end of a piece of pipe or to one or more ends of a pipe fitting. The slip-on flange is positioned so the inserted end of the pipe or fitting is set back or short of the flange face by the thickness of the pipe wall plus 1/8 of an inch. This allows for a fillet weld inside the SO flange equal to the thickness of the pipe wall without doing any damage to the flange face. The back or outside of the flange is also welded with a fillet weld. A variation of the Slip-On flange also exists. This is the Slip-On Reducing Flange. This is simply a larger (say a 14″) Slip-On flange blank that, instead of the Center (pipe) hole being cut out (or drilled out) for 14″ pipe it is cut out for a 6″ (or some other size) pipe. The SO Reducing flange is basically used for reducing the line size where space limitations will not allow the length of a weld neck flange and reducer combination. The use of the Slip-On Reducing Flange should only be used where the flow direction is from the smaller size into the larger size. Lap Joint Flanges: A Lap Joint Flange is a two piece device that is much like a weld-neck flange but also like a loose slip-on flange. One piece is a sleeve called a ‘Stub-end” and is shaped like a short piece of pipe with a weld bevel on one end and a narrow shoulder on the other end called the hub. The hub is the same outside diameter as the raised face (gasket contact surface) of a weld neck flange. The thickness of the hub is normally about ¼” to 3/8″. The back face of the hub has a rounded transition (or inside fillet) that joins the hub to the sleeve. The other piece of a Lap Joint Flange is the backing flange. This flange has all the same common dimensions (O.D., bolt circle, bolt hole size, etc.) as any other flange however it does not have a raised face. One side, the backside, has a slight shoulder that is square cut at the center or pipe hole. The front side has flat face and at the center hole an outside fillet to match the fillet of the “Stub-end” piece. The flange part of the Lap-joint flange assembly is slipped on to the stub-end prior to the sleeve being welded to the adjoining pipe or fitting. The flange itself is not welded or fixed in any way. It is free to spin for proper alignment with what ever it is joining to. The “Stub-end” can normally be purchased in two lengths. There is a short version, about 3″ long and a long version of about 6″ long. It is prudent for the piping designer to know which version is in the piping specification. Because of it’s two piece configuration, the Lap Joint Flange offers a way to cut cost or simplify work. The cost saving comes when the piping system requires a high cost alloy for all “wetted” parts to reduce corrosion. The sleeve or Stub-end can be the required higher cost alloy but the flange can be the lower cost forged carbon steel. The work simplification comes into the picture where there are cases that require frequent and rapid disassemble and assembly during the operation of a plant. The ability to spin that backing flange compensates for misalignment of the bolt holes during reassembly.

Pipe tee is a duct system bifurcate or collection role of pipe fittings. Three links, sort is more, in the form of a diagonal tee, straight tee, pants fork tee, elbow combined tee, etc. Now only introduce commonly used circular tee and rectangular tee. (1) the circular tee As shown in figure 5 to 17 circular tee, the continuation of duct part 1 is called tee “director”, branch part 2 referred to as the “branch” tee. D: said big diameter, D: small hole diameter, D3 said branch pipe diameter, the height of the H t, mouth said executives and branch pipe axis Angle. Executives and branch pipe axis Angle a, should according to the tee to determine the diameter size, generally is 15 ° ~ 60 °, a Angle is small, the height of the tee is bigger, a larger Angle, the height of the tee is smaller. When machining large diameter tee, in order to avoid the 3-way height is too large, large Angle should be adopted. General ventilation system of tee Angle is 15 ° ~ 60 ° 15 ° to 30 ° dust removal system can be used. Executives and branch pipe edge deflection distance between S and should be able to ensure easy mounting flange, and flange bolt fastening. To tee off, should be according to the size of three links of the known underline main view, as shown in figure.

What is threaded flange? A threaded flange is a connecting device that can be secured to a length of pipe without welding. Using a tapered thread, the threaded flange is tightened onto the pipe without leaking, however, a seal weld is commonly used, when appropriate. The nature of the threaded connection makes the threaded flange a viable option when welding is not feasible, such as highly flammable or explosive areas. This flange is commonly used only on smaller diameter pipes. In many refineries, manufacturing facilities and shipyards, the highly explosive nature of the materials being moved via pipeline prohibit welding. In this type of environment, the threaded flange is often a good choice when assembling pipelines. Using a tapered thread inside of the flange, the pipe is tapered on its exterior and is threaded into the threaded flange. As the two tapers become enmeshed, the flange joint becomes tight and leak-proof. If conditions exist that deem welding safe, a seal weld is occasionally placed around the junction of the pipe and flange. Sometimes a seal weld is also used in conjunction with the threaded connection.  This special type of flange is generally used for high pressure piping system, yet smaller diameter applications.  Obviously, the larger the flange is, the harder the ability to machine a thread would be. Threaded Flange Definition: Threaded flange means the inner bore of a flange is thread, the shape of the threaded flange is like a slip on flange ,so the threaded flange could be plate shape or with a hub for longer thread. Threaded Flange Joint: The threaded pipe flange is connected to a pipe with a external thread on the pipe end , so the flange thread should have same thread specification with the pipe thread, the advantage of a threaded flange is that the piping system would be easily to assembly because there is no welding in this piping joint. Sealing of a Threaded Flange: The Threaded flanges are usually supplied with a raised face (RF) or flat face (FF) sealing face. When a raised face is necessary for threaded pipe flanges, the standard height should be 1/16″ for the face under class400, If the threaded pipe flanges is same or more than class 400 , the standard threaded pipe flange raised face height should be 1/4″. The threaded pipe flange commonly used in a small sizes and not very high pressure situation. The threaded flange is no welding in the joint ,it means the flange could be used for some situations which is not able to arrange a welding work. Size Threaded flange:1/4″-6″ DN8-DN150 Pressure America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500. Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400. Flange Facing Types America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ) Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove) Material Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8. Alloy steel: ASTM/ASME A182 F1-F12-F11-F22- F5-F9- F91 Stainless steel: ASTM/ASME A182 F304-304L-304H-304LN-304N ASTM/ASME A182 F316-316L-316H-316LN-316N-316Ti ASTM/ASME A182 F321-321H, F347-347H Low temperature steel: ASTM/ASME A350 LF2. High performance steel: ASTM/ASME A694 F42 , F52, F56, F60, F65, F70 Standards ASME ANSI B16.5,ASME ANSI B16.47. API 605,API 6L. MSS SP 44 CSA Z245.12 EN1092-1,EN1759-1. DIN2565, DIN2566, DIN2567, DIN2568, DIN2569 BS1560,BS 4504,BS 10. AFNOR NF E29-200-1 ISO7005-1 AS2129 JIS B2220 UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090 Industrial Processes Die forging,Machining. Uses of threaded flanges : Threaded flanges can be fitted to pipes of various sizes without welding and this is one chief benefit for which these flanges are highly demanded. They can be used in extremely high pressure applications, particularly at or near atmospheric temperature, where the necessary post weld heat treatment is not possible. They are ideal for small diameter piping applications. They are economical and time saving devices. These threaded flanges are normally designed for non-cyclic applications. The flanges are suitable to be used in applications where welding is hazardous. They can be used in highly explosive areas. FLANGE – THREADED, ANSI CLASS 150, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET This datasheet is for flanges that have athreaded flanges that have a raised face end connection. Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″. When using carbon steel, forgings to be in accordance with ASTM A105. Flanges are tapped with American National Standard taper pipe threads. Bolt circle diameters are 1/8 inch larger than bolt diameter. (NPS)Outside Diameter of Flange ADiameter of Raised Face BThickness of Flange CDiameter of Hub at Base JLength of Hub LMinimum Thread Length NNumber of Bolt Holes Diameter of Bolt Holes Bolt Circle Diameter PApprox. Weight (Lbs.)1/23 1/21 3/87/161 3/165/85/845/82 3/823/43 7/81 11/161/21 1/25/85/845/82 3/4214 1/429/161 15/1611/1611/1645/83 1/821 1/44 5/82 1/25/82 5/1613/1613/1645/83 1/231 1/252 7/811/162 9/167/87/845/83 7/83263 5/83/43 7/161143/44 3/452 1/274 1/87/83 9/161 1/81 1/843/45 1/2737 1/2515/164 1/41 3/161 3/1643/4683 1/28 1/25 1/215/164 13/161 1/41 1/483/4711496 3/1615/165 5/161 5/161 5/1683/47 1/2135107 5/1615/166 7/161 7/161 7/1687/88 1/2156118 1/217 9/161 9/161 9/1687/89 1/219813 1/210 5/81 1/89 11/161 3/41 3/487/811 3/430101612 3/41 3/16121 15/161 15/1612114 1/4431219151 1/414 3/82 3/162 3/161211764142116 1/41 3/815 3/42 1/42 1/4121 1/818 3/4851623 1/218 1/21 7/16182 1/22 1/2161 1/821 1/4931825211 9/1619 7/82 11/162 11/16161 1/422 3/41202027 1/2231 11/16222 7/82 7/8201 1/4251552229 1/225 1/41 13/16243 1/83 1/8201 3/827 1/4159243227 1/41 7/826 1/83 1/43 1/4201 3/829 1/2210

Stainless steel pipe fittings design: Stainless steel pipe fittings design personnel should decide the matter is very much, and every problem needs to be rich Knowledge and experience, in the full study to make decisions one by one. Items should be determined to have: stainless steel pipe material; Diameter of stainless steel pipe; Wall thickness of stainless steel pipe; The stainless steel pipe installation in what position, drawn from what place, The stainless steel piping layout and arrangement; The branch of the stainless steel pipe and confluence practices; The form and position of stainless steel pipe joint, The position and form of support bracket, We use specifications and types of valves, the installation position, The lubrication and hydraulic control system, the practice of stainless steel pipe fittings; stainless steel pipe thermal expansion compensation, Cold insulation and heat insulation practices; Drainage and gas practice, The liner. To determine the above matters, and then according to the stainless steel pipe flow chart, the actual design of the stainless steel pipe fittings. Conditions to meet the requirements of the decision Meet the conditions of use; Meet the requirements of the current standards, codes and procedures; Meet the performance of the device; The operation is convenient, no obstacle, It does not affect the safety; The maintenance and use of barrier free; The spare parts maintenance and repair without obstacles If there is no mandatory force parts; I have no easy to cause the leak; The increase will not cause vibration, and resonance phenomenon; Fault does not occur during start and stop and parking; Do not use to buy materials; Without the use of hard materials; Meet economy, equipment and so on. The above conditions must be fully satisfied.