Lap Joint Flanges

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.

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

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,

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.

Certified by API and ISO
High quality
Various model and dimensions are available
Large number of stock
Durability
Delivery on time
Competitive price


Wooden