Pipe Fittings/Threaded Male End and Flange End Type

The slip-on flange is a simple and excellent alternative to a weld neck as it does not have a weld bevel, and therefore allows the pipe to be adjusted in length relative to its position of the flange. The bore of the slip on will give ample amount of space for the matching pipe.

The specification of ASTM A182 Forged Pipe Fittings includes forged fittings, stainless steel, rolled alloy, forged alloy, pipe flanges as well as high-temperature service. Later then forgings and hot working, it would be cooled down to a certain temperature before heat treatment.
The Alloy Steel A182 Threaded Elbow material grade contains ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22.

A flange can be defined as a method that helps in connecting pipes, valves, etc., to form a full piping system. There are six flange classes ranging from #150 to #2500. Governed by B 16.5 standards, the ASME B16. 5 Class 300 Flange provides a pressure capacity of 300Lb.

Forged Steel Flanges Specification
Shape: Weld Neck Flange ( WN),Slip-on Flange (SO), Threaded Flange (THD),Socket Weld Flange (SW),Blind Flange (BL),Lap Joint Flange (LAPJ),Plate flange (PL)
Size Range: 1/2″ – 48″/ DN15 – DN1200
Pressure Rating: Class 150, 300, 600, 900, 1500, 2500lb
Standard: ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, API 605, MSS SP-44, DIN 2627, DIN 2527, DIN 2558, DIN 2576, DIN 2641, DIN 2655, DIN 2656, DIN2573
Carbon Steel: ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH

Classification of weld neck flange

Usage of a weld neck flange

Materials of WN Flanges

A swage nipple is something similar to that of a reducer but it is used to join the butt welded pipe with a socket welded or screwed pipe.Like the reducer,swage nipple is also available with two variations:concentric swage nipple and eccentric swage nipple.The swage nipple generally adopts the MSS SP-95 or the BS3799 Standard.

A weld neck flange, also called a tapered hub flange or high-hub flange, is a kind of flange that can relocate stress to the pipes, ensuring a decrease in high-stress concentration at the bottom of the flange.

The difference between ASME/ANSI and API

ASME B16.5 flange is a flange made accoding to American matal standaed.Class 150 WN flange is the lowest pressure of flange.Flanges have many pressures:CL150, CL300, CL600, CL900, CL1500, CL2500.

Slip on flange, also called SO flange. It’s a kind of flange slides over the pipe with internal design is slightly larger than the pipe. Since the inner diameter of the flange is slightly larger than the outer diameter of the pipe, the SO flange can be directly connected to equipment or pipe by fillet weld at the top and bottom of the flange. It is used to insert the pipe into the inner hole of the flange.

These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe. The connection with the pipe is done with 1 fillet weld, at the outside of the flange. But before welding, a space must be created between flange or fitting and pipe.

600LB SW flanges can socket with the flanges and then welded with the pipes.Large diameter flanges can be series A and series B.ASME B 16.47 A & B are standard for large diameter flanges.

150LB slip on flange is the lowest pressure flange in all pressure flanges.ASME B16.5 forged flange is manufacted according to American Standard.Pressures for flanges have 150LB,300LB,600LB,900LB,1500LB,2500LB.

What is a weld neck flange and its specification?

Slip on flange, also called SO flange. It’s a kind of flange slides over the pipe with internal design is slightly larger than the pipe. Since the inner diameter of the flange is slightly larger than the outer diameter of the pipe, the SO flange can be directly connected to equipment or pipe by fillet weld at the top and bottom of the flange. It is used to insert the pipe into the inner hole of the flange.

WN flange is a commonly used type of flanges,ASMT A150 forged flange is carbon steel flange according to American Standard.Flanges have many types:WN,SO,SW,THD,LAPJ,BL.

DN150 SW flange is a 6in flange used to socketed with the pipes and then welding on pipes.CL150 forged flange is the lowest pressure flange.Flanges have many pressures:CL150, CL300, CL600, CL900, CL1500, CL2500.

Many times a nozzle will be blanked off with a blind flange for pressure tests in a plant, or simply because the customer does not need all the nozzles that were supplied on the tank.

Stainless steel socket flanges are installed during pipeline construction and connected to another pipeline through bolts to achieve a tight connection of the pipeline.

Equal tee is one type of pipe fittings, also called straight tee which means the branch diameter is same with the main pipe (Run pipe) diameter.

orged steel flange is a disc-shaped piece of equipment used to connect a pipe to fittings or valve or other component to form a pipework system. Usually flange has been attached to pipe or tube end to, and then a gasket is inserted in the middle to form a seal. Finally they are joined together with bolts and nuts.

Stainless steel flange is popular because stainless steel has great anti-corrosive function.Flanges can be many types:WN,SO,SW,THD,LAPJ,BL.These flanges use different connections to connect with the pipes.Shanghai Zhucheng is a high quality manufactory who can supply all types of flanges.

What is a blind flang,what about its specification and advantage.

Large diameter flat welding flange has less high-pressure suitability compared to its weld neck counterpart. The basic ring style is suitable for the occasion of low pressure. The butt weld category of the flange is known as a weld neck flange. It suits the occasion of high temperature and pressure as defined in the ASME B16.47 code.