What is the difference between weld neck flange and slip on flange?
What is a neck flat welding flange?
The difference between neck flat welding flange and butt welding flange
Flange is a part that connects shafts to each other, and is used for the connection between pipe ends; it is also used as a flange on the inlet and outlet of equipment, for the connection between two equipment, such as the flange of a waste machine.
Flange connection or flange joint refers to a detachable connection of a combined sealing structure that is interconnected by flanges, gaskets and bolts.
Pipe flange refers to the flange used for piping in pipeline installations, and when used on equipment, it refers to the inlet and outlet flanges of the equipment.
There are holes in the flange, and the bolts tightly connect the two flanges. The flanges are sealed with each other.
Flange material
WCB (carbon steel), LCB (low temperature carbon steel), LC3 (3.5% nickel steel), WC5 (1.25% chromium 0.5% molybdenum steel)
WC9 (2.25% chromium), C5 (5% chromium 0.5% molybdenum), C12 (9% chromium 1% molybdenum)
CA6NM (4 (12% chromium steel), CA15(4) (12% chromium), CF8M (316 stainless steel), CF8C (347 stainless steel)
CF8 (304 stainless steel), CF3 (304L Stainless steel), CF3M (316L stainless steel), CN7M (alloy steel)
M35-1 (Monel), N7M (Hastel B), CW6M (Hastel C), CY40 (Inconel) wait.
What is butt welding flange
Butt welding flange is a type of pipe fitting, which refers to a flange with a neck and a round pipe transition and is butt welded to the pipe.
It is suitable for pipelines with large fluctuations in pressure or temperature or pipelines with high temperature, high pressure and low temperature.
It is generally used for the connection of pipelines and valves with PN greater than 2.5MPa; it is also used for pipelines transporting expensive, flammable and explosive media.
What is a neck flat welding flange?
Neck flat welding flange, the full name of neck flat welding steel pipe flange, is a flange in which steel pipes, pipe fittings, etc. are extended into the flange and connected to equipment or pipelines through fillet welds.
The neck flat welding flange, like the plate flat welding flange, is a flange in which steel pipes, pipe fittings, etc. are extended into the flange and connected to equipment or pipelines through fillet welds.
The difference between neck flat welding flange and butt welding flange
| Characteristic | Neck Flat Welding Flange | Butt Welding Flange |
|---|---|---|
| Connection Type | Welded | Welded |
| Design | Flat face with a long neck (hub) | Flat face without a neck |
| Strength | Generally stronger due to the extended neck providing additional support | Strong, but may be considered less robust compared to neck flanges |
| Usage | Commonly used in high-pressure and high-temperature applications | Widely used in various applications, especially where space constraints are a concern |
| Alignment | Requires precise alignment due to the extended neck | Easier to align during welding |
| Cost | Typically more expensive due to the design complexity | Generally more cost-effective |
| Applications | Petrochemical, oil and gas, chemical processing industries | Versatile and used in a wide range of industries |
| Installation Difficulty | May be more challenging due to precise alignment requirements | Easier to install, especially in tight spaces |
| Sealing Surface | Flat face for gasket sealing | Flat face for gasket sealing |
