Lap Joint Flange
- PRODUCT DETAIL
Lap Joint Flange(Loose Flange) 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 Flange(Loose Flange)
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 Flange(Loose Flange)
Lap Joint flanges have certain special advantages:
1.Freedom to swivel around the pipe facilitates the lining up of opposing flange bolt holes.
2.Lack of contact with the fluid in the pipe often permits the use of inexpensive carbon steel flanges with corrosion resistant pipe.
3.In systems which erode or corrode quickly, the flanges may be salvaged for re-use.
Haihao Lap Joint Flanges(Loose Flanges) are available in various sizes and material for you to choose from.
| Size | 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. |
| Type | 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. DIN2566. 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 | Natural gas,chemical,petroleum,ship building,marine,paper making,metallurgy,electric, power,boiler etc. |
Hebei Haihao group as a first class manufacturer of Lap Joint Flange(Loose Flange) in China,supplys a variety of steel flanges to satisfy our customers’ specifica requirements,which include different size,different schedule,different pressure and different finish faces. Our products are produced strictly according to the required standard. Our raw material for weld neck flanges all are purchased from big steel companies which can make sure the material in a high quality.
We sincerely welcome customers domestic and abroad to visit us for cooperation and development.