Lap Joint Flanges Suppliers and Manufacturers

Lap Joint Flange

Lap joint flanges feature a flat face and are always used in conjunction with a stub end. Lap joint flanges resemble, in shape, slip-on flanges except for the radius at the crossing of the flange face and the bore to accommodate the flanged portion of the stub end. A lap joint flange slips over the pipe and seats on the back of the stub end and the two are kept together by the pressure of the bolts. The use of lap joint flanges in combination with stub ends is a cost-effective solution for stainless steel or nickel alloy pipelines, as the material of the lap joint flange can be of a lower grade (generally carbon steel) than the material of the stub end (which has to match the pipe grade, as in contact with the conveyed fluid). This arrangement, therefore, has these two advantages: reduces the overall cost of the pipelines flanged joints, as the use of higher grade materials is minimized; bolting operations are simplified, as the lap joint flange can be rotated around the pipe to help with bolts alignment.

A lap joint flange is a type of flange that is used in piping systems. It is made up of two parts: a stub end and a lap joint ring flange. The stub end is butt welded to the pipe, and the lap joint ring flange is then slid over the stub end. The flange ring has a flat face that is used to seal against the gasket. Technical Specifications Material: Carbon steel, stainless steel, alloy steel Size: 1/2" to 48" Pressure class: 150 to 2500 Face type: Flat Face Sealing method: Gasket Advantages of Lap Joint Flanges Easy to install and maintain Can be used in a variety of materials and sizes Available in a variety of pressure classes Applications Lap joint flanges are used in a variety of applications, including: Chemical processing Oil and gas Power generation Water treatment

Lap Joint flanges are used on piping fitted with lapped pipe or with lap joint stub ends. 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. These flanges are also used in applications where there is a need to facilitate bolt alignment. These type of flanges are similar to slip-on flanges. The only difference is that it has a curved radius at the bore and face to accommodate a lap joint stub end. They may be used at all pressures and are available in a full size range. These lap joint flanges slip over the pipe, and are not welded. They are otherwise fastened to it. Here the bolting pressure is transferred to the gasket by the pressure of the flange against the back of the pipe lap. DIMENSION SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE SIZE : ½" to 48" (As Per Customer Requirement) CLASS : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6, 10, 16, 25, 40 Etc MATERIAL GRADE: Carbon Steel Lap Joint Flange : ASTM A105, ASTM A 694 F42 Low Temperature Carbon Steel Lap Joint Flange : A350 LF2/A350 LF3 Copper Alloys Lap Joint Flange : ASTM / ASME SB 61 / 62 / 151 / 152 C 70600 (CU -NI- 90/10 C 71500 (CU -NI- 70/30) UNS NO. C 92200, UNS NO. C 83600,UNS NO C 10100 C 10200, C 10300, C 10800, C 12000, C 12200 Nickel Alloys Lap Joint Flange : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276 Duplex Lap Joint Flange : ASTM A 182 UNS F 44, F 45, F51, F 53, F 55, F 60,F 61 Stainless Steel Lap Joint Flange : ASTM 182 F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L Alloy Steel Lap Joint Flange : ASTM SA 182 F1/F5/F9/F11/F22/F91 ADVANTAGE OF LAP JOINT FLANGES: Lap Joint flanges have certain special advantages over other flanges. These are as follows: Lap Joint flanges have the freedom to swivel around the pipe. This facilitates the lining up of opposing flange bolt holes. Lack of contact with the fluid inside the pipe leads to the greater durability of these flanges. In piping systems which corrode or erode quickly, the lap joint flanges may be salvaged for re-use. The pressure-holding capacity of lap joint flanges is little. But it is better than that of slip-on flanges. The Lap Joint works as a backing ring on the stub. The main advantage of lap joint flange is that the bolt holes can be aligned with the matching flange after the welds have been completed. They allow rotational alignment capability. VALUE ADDED SERVICES : Hot Dip Galvanizing Electro Polish Test Certificate As Per EN 10204 - 3.1 & 3.2

Code No. JSI -71

The lap joint flange has two components, one stub end, and loose backing flange. The end piece is welded end to end to the pipe and the support flange moves freely on the pipe. The support flange may be of different material from the stub material and normally of carbon steel to save cost. The cover flange is used when frequent disassembling is required, and space is limited. The flange of the lap joint is almost identical to a slip-on flange, except that it has a radius at the intersection of the bore and flange face. These 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. The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system. Sizes we make range from 1/2" to 64" (and much larger size according to customers' demands).

LAP Joint Flanges are primarily employed with lap joint stubs, 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 chief use of lap joint flanges in carbon or low alloy steel piping systems is in services necessitating frequent dismantling for inspection and cleaning and where the ability to swivel flanges and to align bolt holes materially simplifies the erection of large diameter or unusually stiff piping. Their use at points where severe bending stress occurs should be avoided.

Cold and hot Chamber Die Casting Machine Vacuum, precision and Soluble Die Casting Application areas are mainly oil, chemicals, electricity, water, coal, water, heating, gas, natural gas, marine,large-scale infrastructure, offshore water platform Hardware Flat Face(FF), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ) Best Regards Litas Lee, Telephone: 02287802560 Whats app:8615522509091 Fax:02287808131 S k y p e: litas.lee520 E:sale01@tianjin-all-best. com Tianjin All Best International Ltd Sunny Plaza,Huanghe Road,Nankai District,Tianjin, China Factory: Xiwang New District, Mengcun, Cangzhou, hebei, China Lap joint flanges - ANSI B16.5 Stainless Class: 1500lb Forged ASTM A182, F304, F304L, F316L, F321 NPS: 1/2-24 Pipe outside diameter: 0.840- 24.00 inch Weight: 1.71-1090 kg/in piece Notice: - Weights are based on manufacturer¡¡¡ê¡ès data and are approximate

SIZE DIAMETER: 15mm NB to 1200mm NB as per ANSI B 16.5 Pressure rating form 150 Lbs to 2500 Lbs Size Larger Than 600NB AS PER API 605 or M.S.SP 44 up to 1200mm NB GRADE AVAILABLE. Carbon Steel ASTM A105 A105N A694 F42 46 52 56 60 65 70 A350 LF3 A350 LF2, etc. Alloy Steel ASTM A182 F1 F5 F9 F11 F22 F91/etc. Stainless Steel ASTM A182 F304 304L 304H 316 316L 317 317L

Diameter - 20-30mm, 30-40mm, 40-50mm Thickness- 10-15mm Packaging Typ - Carton Technic - Black Oxide, Hot Dip Galvanized, White Zinc Plated Usage - Automobiles Use Specialities - Accuracy Durable, Auto Reverse, Hardend & Temper Dimension (LxWxH) - 250x130x195mm

Thickness - 30-40mm Finishing - Polished Packaging Type - Shrink Wrapping Inner Diameter - 20-40mm, 40-60mm Usage - Industry Use Specialities - Strong Construction

FLANGEWN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(socket welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange;API flange;Integral/Compact flange;Spectacle blind,Lind spade and spacer,Paddle blind,Paddle spacer;Orifice plate;tube plate, tube sheet, Bleed ring, square flange, girth flange, hub flange, API flange Carbon duplex stainless nickel alloy monel inconel incoloy hastelloy nimonic steel flange flanges Size1/2''~160'', max. OD5000mm FaceRF(raised face);FF(flat face);RTJ(ring type joint);TG(tongue and groove face);MFF(male and female face) Class RatingClass150~6000 StandardANSI B16.5,ANSI B16.47, ASME B16.47 series A, ASME B16.47 series B, MSS SP-44, API 605, API 590, AWWA C207, DIN2527, ASME B16.5, API 6B, API 6BX ,BS4504, BS3293,BS10, JIS B2220, JIS 5K 10K 16K 20K, ANSI B16.36, ASTM A36,DIN EN1092-1, DIN 2527, DIN 2566, DIN 2627~2638, DIN 2641 2642, DIN 2655 2656, ASTM B564, ASME SB564, ASTM B462, ASME SB462 PackingPlywood case, wooden case, wooden tray, etc flange,flanges,carbon flange,stainless flange,duplex flange,duplex stainless flange,monel flange,forged flange,inconel flange,incoloy flange,hastelloy flange,lwn flange,ring flange, A105 flange,a105n flange,a694 flange,a350 flange,a182 flange,a694 f60 flange,a694 f65 flange,a694 f56 flange,a694 f52 flange, ss304 flange, ss304l flange,ss316 flange,ss316l flange,ss316ti flange,ss347 flange,duplex 2205 flange,duplex 2507 flange,s31803 flange,s32750 flange, s32760 flange,s31254 flange,254smo flange,904l flange,uns no8904 flange,f51 flange,f53 flange,f55 flange,f44 flange,monel 400 flange,monel k500 flange, inconel 600 flange,inconel 625 flange,inconel 718 flange,inconel 601 flange,incoloy 800 flange,incoloy 800h flange,incoloy 800ht flange,incoloy 825 flange, incoloy 925 flange,inconel x750 flange,incoloy 6mo flange,hastelloy b flange,hastelloy b2 flange,hastelloy b3 flange,hastelloy c4 flange,hastelloy c22 flange, hastelloy c276 flange,hastelloy c flange,hastelloy c2000 flange,nimonic 80a flange,nimonic 90 flange,nickel 200 flange,nickel 201 flange,316moln flange, a36 flange,s235jr flange,s355jr flange,st37.2 flange,

mary FLANGE WN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(socket welding);LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange;API flange;Integral/Compact flange;Spectacle blind,Lind spade and spacer,Paddle blind,Paddle spacer;Orifice plate;tube plate, tube sheet, Bleed ring, square flange, girth flange, hub flange, API flange Carbon duplex stainless nickel alloy monel inconel incoloy hastelloy nimonic steel flange flanges Size 1/2''~160'', max. OD5000mm Face RF(raised face);FF(flat face);RTJ(ring type joint);TG(tongue and groove face);MFF(male and female face) Class Rating Class150~6000 Standard ANSI B16.5,ANSI B16.47, ASME B16.47 series A, ASME B16.47 series B, MSS SP-44, API 605, API 590, AWWA C207, DIN2527, ASME B16.5, API 6B, API 6BX ,BS4504, BS3293,BS10, JIS B2220, JIS 5K 10K 16K 20K, ANSI B16.36, ASTM A36,DIN EN1092-1, DIN 2527, DIN 2566, DIN 2627~2638, DIN 2641 2642, DIN 2655 2656, ASTM B564, ASME SB564, ASTM B462, ASME SB462 Packing Plywood case, wooden case, wooden tray, etc flange,flanges,carbon flange,stainless flange,duplex flange,duplex stainless flange,monel flange,forged flange,inconel flange,incoloy flange,hastelloy flange,lwn flange,ring flange, A105 flange,a105n flange,a694 flange,a350 flange,a182 flange,a694 f60 flange,a694 f65 flange,a694 f56 flange,a694 f52 flange, ss304 flange, ss304l flange,ss316 flange,ss316l flange,ss316ti flange,ss347 flange,duplex 2205 flange,duplex 2507 flange,s31803 flange,s32750 flange, s32760 flange,s31254 flange,254smo flange,904l flange,uns no8904 flange,f51 flange,f53 flange,f55 flange,f44 flange,monel 400 flange,monel k500 flange, inconel 600 flange,inconel 625 flange,inconel 718 flange,inconel 601 flange,incoloy 800 flange,incoloy 800h flange,incoloy 800ht flange,incoloy 825 flange, incoloy 925 flange,inconel x750 flange,incoloy 6mo flange,hastelloy b flange,hastelloy b2 flange,hastelloy b3 flange,hastelloy c4 flange,hastelloy c22 flange, hastelloy c276 flange,hastelloy c flange,hastelloy c2000 flange,nimonic 80a flange,nimonic 90 flange,nickel 200 flange,nickel 201 flange,316moln flange, a36 flange,s235jr flange,s355jr flange,st37.2 flange,

Lap joint face is used on lap joint flange. It looks similar to flat face flange but has a groove in the bore for mating stub end. Lap joint face has a small contact area for the sealing element providing good gasket compression under low bolt loading. The groove slot acts like an oring groove and provide a good containment means for the gasket. This is ideal under high pressure application.

Lap Joint Flange Manufacturers In India, Lap Joint Flange Suppliers In India, Lap Joint Flange Exporters In India Manufacturer, exporter & suppliers of ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8,ASME/ANSI B16.5 carbon steel Lap Joint Flange, stainless steel Lap Joint Flange, alloy steel Lap Joint Flange, Lap Joint Flange distributors In India, Lap Joint Flange traders In India. ASTM A182 F9 Lap Joint Flange, SWRF Flange Manufacturers in India, ASTM A182 F11 Lap Joint Flange suppliers, Spectacle Blind Flange Manufacturers in India, ASTM A182 F12 Lap Joint Flange manufacturers, ASTM A182 F22 Lap Joint Flange, ASTM A182 F91 Lap Joint Flange, ASTM A350 LF2 Lap Joint Flange, WNRF Flange Manufacturers in India, ASTM A350 LF3 Lap Joint Flange, ASTM A350 LF6 Lap Joint Flange manufacturers in India,A182 Gr F304 Lap Joint Flange, A182 Gr F316L Lap Joint Flange manufacturers, A182 Gr F316Ti Lap Joint Flange, A182 Gr F321 Lap Joint Flange, A182 Gr F321H Lap Joint Flange, A182 Gr F347 Lap Joint Flange, A182 Gr F347H Lap Joint Flange, A182 Gr F317 Lap Joint Flange, A182 Gr F 317L Lap Joint Flange, ASTM A182 F5 Lap Joint Flange suppliers, Lap Joint Flange stockholder in india, Lap Joint Flange wholesaler in india. Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 Lap Joint Flange Manufacturers in India . An ISO 9001:2008 Certified Company, LME Metal International is one of the leading manufacturer & exporters of ASTM A182 Stainless Steel Lap Joint Flange, A182 Gr F304 Lap Joint Flange, A182 Gr F 304L Lap Joint Flange, A182 Gr F316 Lap Joint Flange, A182 Gr F316L Lap Joint Flange, A182 Gr F316Ti Lap Joint Flange, A182 Gr F321 Lap Joint Flange, A182 Gr F321H Lap Joint Flange, A182 Gr F347 Lap Joint Flange, A182 Gr F347H Lap Joint Flange, A182 Gr F317 Lap Joint Flange, A182 Gr F 317L Lap Joint Flange, ASTM A105 Carbon Steel Lap Joint Flange, ASTM A350 Carbon Steel Lap Joint Flange, ASTM A694 Carbon Steel Lap Joint Flange, ASTM A182 F5 Lap Joint Flange, ASTM A182 F9 Lap Joint Flange, ASTM A182 F11 Lap Joint Flange, ASTM A182 F12 Lap Joint Flange, ASTM A182 F22 Lap Joint Flange, ASTM A182 F91 Lap Joint Flange, ASTM A350 LF2 Lap Joint Flange, LF3 Lap Joint Flange, LF6 Lap Joint Flange Other special flanges with large diameter can also be manufactured and supplied on customer requirements

Name high pressure titanium flange Standard ASME/ANSI B16.5,DIN2630~2633,BS etc Material Gr2 GR5 GR7 GR12 Size 1/2''~80''(DN10~600) Thickness SCH20, SCH30, SCH40, STD, SCH80, SCH100, SCH120, SCH160, XXS Pressure rating 0.6~32Mp (DIN) PN6,PN10,PN16,PN25 though PN250 (ASNI) CL150,CL300,CL600,CL900,CL1500 Working temperature -60°C~250°C Application 1.Chemical industry 2. Petrochemical industry 3. Machining field,Automobile field,etc 4. Desalination of sea water 5. Textile printing and dyeing 6. Mobile phone component field

1.Basic Info: Type: SO,BL,WN,SW.LJ                                                                Origin: China Material: Carbon Steel                                                                   Steel Grade: A105,Q235,20#,st37.2 Surface Treatment:Oil,galvanized,Painted                                    Standard:JIS, ASME,DIN,BS, SNBS,EN,GOST Application:Pipe Line, shipbuilding,Oil & Gas                                Certifications:SGS,BV,ISO9001,LR     Stock: Stock                                                                                   HS CODE: 73079100 MOQ:500 Pieces                                                                           Trade Mark: Wangda Sample: Free                                                                                 Flange Face: RF,FF,TF,RTJ Hardness:  121                                                                           Connections:Welding,Threaded Transport Package: Standard Sea Packing                                  Sea Port:Qingdao Port,tianjian Port 2.Deascription: Production process: Forged Outside Diameter:100-2500mm MOQ:500 Pieces Payment:T/T,L/C,Western Union Shipment:By Container Standard:JIS, ASME,DIN,BS, SNBS,EN,GOST Trade Term:CIF,FOB,CFR Thickness:10-100mm Surface Treatment:Oil,galvanized,Painted   3.Why choose Wangda Flange ? )ISO/BV/SGS/approved )Lloyd's Register of Shipping approved )Competitive price from our own factory with best quality and service)Nearest seaport convient transportion)Efficent service team online for 24 hours)More than 15 years export experiences)Feedback within 24 hours )Flexible payment with T/T,L/C,Western Union 4.Process FAQ: 1.What kind of material is the product material ?     Carbon Steel 2.What kinds of type can you supply ?    Welding neck Flange      Slip on    Blind flange      Long welding neck flange    Lap joint flange    Socket welding    Threaded flange   3.What kinds of package can you provide ?    crates or Pallet 4.What's you monthly production capacity ?    2000MTS/ Month 5.Which is the nearest port ?    Qingdao Sea Port 6.Do you accept third party inspection ?    We accept . Please send your message to us if you have any questions or inquiries, we will reply you within 12 hours !

slip on flange,lap joint flange,threaded flange 1) Specification: DN15-DN2000 2) Size: 1/2 - 36" 3) Standard: ASME, ANSI, JIS, BS, and DIN 4) Material: stainless steel such as 304/304L/316/316L/316Ti/321; 1.4301/1.4307/1.4401/1.4404/1.4541/1.4571 super duplex stainless steel such as ASTM A182 F51/F53 5) Can produce according to customers' demands.

Flanges of all types are available in small and large O.D. nominal pipe sizes and pressure ratings of 150lbs - 2500lbs in accordance to latest material and dimensional standards.