Slip on FLANGE/SO flange
Our company produces more than years, export flange more than years. With the world’s advanced flange production line, export flange, such as Slip on flange/SO flange, WN flange, PL flange and other types flange, because its satble quality, concessional prices, strong quality assurance and cheap price , received the welcome from customers.
Slip on flange/SO flange in the actual use of the operation process needs to be in accordance with certain standards and forms, in accordance with the national standard form of control and use, in different fields of industry use, play an important role in linking and performance. With neck flat welding flange features: Production process: Professional overall forging, forging and other manufacturing. Processing methods: high-precision CNC lathe Turning, ordinary lathe precision car, argon arc welding and other processing. Nominal pressure and so on. Manufacturing Standards: ANSI Standard, GOST standard, DIN standard ,JIS standard and so on.
Characteristics of Slip on flange/SO flange
When the welding flange is welded, only one side welding does not need the inner port of the welded pipe and flange connection, and the welding and installation of the welding flanges need flange double-sided welding. So the flat welding flange is generally used for low, medium pressure pipe, butt welding flange for medium and high pressure pipe connection, butt welding flange is generally at least pn2.5mpa, using butt welding is to reduce stress concentration, the general butt welding Farrando for neck flange is also called nipple flange.Therefore, the installation of welding flange costs, labor and ancillary costs to high, because more than a process.
Specification of Slip on flange/SO flange:
Standard: AMSE,GOST,DIN,JIS
Material: Carbon steel/Stainless steel
Size: 1/2’’-36’’
Continue face: RF,FF,MFM
Flange outer diameter: 75mm-2190mm
Center circle diameter of bolt hole: 50mm—-2130mm
The diameter of bolt hole: 11mm-30mm
The number of bolt holes: 4 -48
Thread: M10-M27
Flange thickness: 12mm-58mm
Pipe outer diameter: A (17. 2-2032MM) B (14-2020MM)
Internal flange diameter: A (18-2036MM) B (15-2024MM)
Flange theoretical weight: 0.36kg–234.6kg (DN1800)
Flange pressure: Class 150 – Class 2500
Differences between Slip on flange/SO flange and WN Flange
1.The weld form is different: so flange weld can not be radiographic inspection, and WN flange weld. So flange pipe and flange welding seam form is angular weld, and with neck butt weld flange and pipe welding seam form is ring weld. The weld seam of the WN flange and the nozzle is a type B seam, the weld seam of so flange and nozzle is a type C seam, which is not the same as nondestructive testing after welding.
2.The nominal pressure is different: so flange nominal pressure: 0.6—4.0MPa, and wn flange nominal pressure: 1–25mpa grade, obviously, so flange adapt to the lower pressure level.
3.The connection mode is different: so flange and WN flange in the structure of the biggest difference between the receiver and the flange connection, so flange is generally take over with flange angle, and WN flange is flange and take over the docking. So flange generally can only be connected with the pipe, but not directly with the welded pipe parts, WN flange can generally be connected with all welded pipe parts (including elbow, tee, reducer, etc.) directly, of course, including pipelines. The stiffness of WN flange is greater than that of so flange, and the strength is high and it is not easy to leak.
4. Different application: So flange and WN flange can not be casually replaced, in terms of manufacturing angle so flange, means that the weight of small, low cost, another nominal diameter greater than 250mm WN to detect, so the flange does not need to detect, so the cost is relatively low. So flange is the introduction of more oil installations, similar to the U.S. standard S0,WN flange for highly hazardous media.
