ASTM A182 F316 Threaded Flange

P280GH weld neck flange refers to a flange connection method that uses P280GH material as the base material and forms one or more layers of P280GH material welding layers on the flange surface through the butt welding process to improve the flange’s high temperature resistance, high pressure resistance and corrosion resistance.

Material Grade: ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317,347,904L， 1.4404, 1.4437.

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.

Threaded nipple is a short piece length of pipe or tube. Its size is specified according to the length of this section of pipe and the diameter. It can be with threaded or flat ends. And both ends can be the same or different.
There are two shape : threaded one end (TOE) and threaded both end ( TBE).

ASTM A105 Forged Fittings 300# WN Flange
Size Range: 1/2″ – 48″/ DN15 – DN1200
Rressure rating: Class 150, 300, 600, 900, 1500, 2500lb

ASTM A350 LF2 Blind Flange is a common low-temperature carbon steel material, mainly used in the manufacture of low-temperature and high-pressure forged pipe fittings and flanges.

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.

A105 Lap Joint flanges are made by using flanges, steel rings, etc. to put flanges on the pipe ends, and the flanges can move on the pipe ends. The function of the flange is to press them tightly. Because they are blocked by the flanges, the Lap Joint flanges do not contact the medium.

Stainless steel 316L LAPJ flange has great anti-corrosive function,it always used with lap joint stub end of same material.ASME B 16.5 forged flange have soem pressures:CL150,CL300,CL600,CL900,CL1500,CL2500.You could find the comparison between LAPJ flanges,SO flanges and WN flanges below.

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.

ASTM A182 F304 600LB slip on flanges are very popular type of flanges because of the excellent functions and high pressure.ASME B16.47 Series A & B are American Standard for large dimension flanges.According to ASME B16.47 Series A& B,the smallest size of flanges is 22 in.

18in CL600 WN flange is belong to large dimension flanges.ASME B16.5 is standard for forged flanges.Forged flanges have important functions in high pressure enverionments.

The descipton ,specification ,and advantages of a weld neck flange.

Welding neck flange benefits

WN flanges is the most popular type of flanges.ASTM A182 F304 is a American standard grade of stainless steel.The other popular grade is A182 F316.ASME B16.5 forged flanges inculding WN flange,SO flange,SW flange,THD flange,LAPJ flange,BL flange.All types of flanges have pressures:150#,300#,600#,900#,1500#,2500#.

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.

A182 F304 forged flanges are stainless steeel flanges,ASME B16.5 SW flanges are socket weld flanges following American Standard specifications.

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.

An assembly with limited space may be an instance in which a socket weld is selected, provided the pressure class is comparatively low and the fluid is not corrosive or for extremely high temperature service.

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.

flange type: 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)

Forged Steel Flange 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 equal cross is one kind of the pipe cross,  the equal cross means all the 4 ends of the cross are in same diameter.
The reducing cross also is called unequal pipe cross , it is the pipe cross which the four branch ends are not in the same diameters.

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.

The difference between ASME/ANSI and API