Welding Neck Flange

Features: 1) Stainless steel flange and carbon steel flange 2) Standard: ASME, ANSI, API, JIS, JPI,

WELDING NECK FLANGES are distinguished from other types by their long tapered hub and gentle transition of thickness in the region of the butt weld joining them to the pipe. The long tapered hub provides an important reinforcement of the flange proper from the standpoint of strength and resistance to dishing. The smooth transition from flange thickness to pipe wall thickness effected by the taper is extremely beneficial under conditions of repeated bending, caused by line expansion or other variable forces and produces an endurance strength of welding neck flanged assemblies equivalent to that of a butt welded joint between pipes, which, in practice, is the same as that of unwelded pipe. Thus this type of flange is preferred for every severe service condition, whether this results from high pressure or from sub-zero or elevated temperature, and whether loading conditions are substantially constant or fluctuate between wide limits.

General Description

1,Carbon steel, stainless steel and alloy flanges, are manufactured as per the standards of BS, ANSI, JIS, DIN, and UNI.

2,Flanges are the connectors used in process piping to connect pipe to tees, elbows, valves, pumps and whatever other equipment may be necessary.

3,Types: Flat Face Flanges, Slip On, Welding Neck, Blind, Threaded , etc.

4,Water , Oil, Gas, Industrial Using

Detailed Description

Features:

1) Types:

a) Forged steel flanges

b) Plate cutting flanges

2) Materials:

a) Carbon steel

b) Stainless steel

c) Alloy steel

3) Standards:

a) ANSI, DIN, EN1092-1, NFE, AS, JIS

b) Customers' drawings for special use

4) Sizes we can produce: DN10 to DN3000

5) Types we can supply: WN, SO, BL, plate, thread, socket and other special shapes

6) Kinds of forging:

a) Free forging

b) Die forging

c) Rolling

7) Rustproof treatment:

a) Lightly oiled

b) Galvanized

c) Painting with different colors

d) Just keep the flanges dry and clean as per customers' requirement

8) Inspection:

a) Factory in-house

b) Third party inspection available upon request

9) Different accessories are available

Packing:

Wooden case, wooden pallet or as per customers' requirements

Welding Neck Flange