B16.5 Nozzle Neck Stainless Steel 304 Vessel Connections Long Weld Neck Flange

Stainless Steel 304 Forged Vessel Connections , Long Welding Neck Flange

The nozzle neck is welded to the flange with a butt weld joint. Slip On. This kind of flanges could be accepted only in low critical services (low pressure and temperature, and no special services). In this type, flange and nozzle neck are not welded with a butt-weld joint, but both fillet welds.

Nozzle piece is essential in the interconnection between pressure vessel, heat exchanger or reactor with the rest of process.

The Heavy Barrel Flanges,also called Heavy barrel nozzles which has additional reinforcement beyond the same size lighter wall standard LWN (Long weld neck flange). Common standard lengths are available from stock and can be increased to any longer length to provide the offset needed. These connections are always supplied with a “Nut Stop” unless “Nut Relief” is requested. The inside diameter of these connections for 12” and below are provided with a S80 pipe size bores, 14” and large HB Connections are offered with a bore equal to the nominal pipe size. Special bores, contoured bottoms and other custom variations of all kinds are available upon request.

Forged Vessel Connections type

1>.Long Welding Necks

2>.Heavy Barrel Type HB Necks

3>.Variable Body V1 Necks 

4>.Variable Body V2 Necks 

5>.Variable Body V3 Necks 

6>.Full Body Type F Necks 

7>.Studding Outlets

8>.Rough Forgings 

9>.Insert Type Q Nozzles

Forged Vessel Connections Work Pressure Grade

1>.Class 150

2>.Class 300

3>.Class 400

4>.Class 600

5>.Class 900

6>.Class 1500

7>.Class 2500

Standards and Materials

The most common forged nozzle used in Oil&Gas and Petrochemical sector are reinforced Long Welding Neck, standard Long Welding Flange or special flanges that will be weld to the shell.