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Rongtai

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Flanges

Forged flanges are used as a connection component for pipes, valves, pumps and other equipment to form a pipework system. They provide easy access for cleaning, inspection, modification or repairs. Flanges are usually welded onto pipes or screwed onto a threaded pipe end and then joined with bolts to make the connection. The types of flanges are described and shown below.

 

  • Weld Neck Flange (WNRF)

Forged Weld Neck Flangeweld neck flange drawing

Weld neck flanges are circumferentially welded at the neck where the integrity of the butt welded area can be easily examined by radiography. The bores of both pipe and flange match, which reduces turbulence and erosion inside the pipeline. The weld neck is therefore durable in critical applications.

  • Slip-On Flange (SORF)

Forged Slip-On Flangeslip on flange

Slip-on flanges are fitted over the pipe and then fillet welded. Slip-on flanges are easy to use in fabricated applications.

  • Blind Flange (BLRF)

Forged Blind Ring Flangeblind flange drawing

Blind flanges are used to blank off pipelines, valves and pumps. They can also be used as an inspection cover. It is sometimes referred to as a blanking flange.

  • Socket Weld Flange (SWRF)

Forged Socket Weld Flangesocket weld flange drawing

Socket weld ring flanges are counter-bored to accept the pipe before being fillet welded. The bore of the pipe and flange are both the same to provide good flow characteristics.

  • Threaded Flange

Forged Threaded Flangethreaded flange drawing

Threaded flange are referred to as either threaded or screwed. They are used to connect other threaded components in low pressure, non-critical applications. No welding is required.

  • Lap Joint Flange (LJRF)

Forged Lap Joint Flangelap joint flange drawing

Lap joint flanges are always used with either a stub end or taft which is butt welded to the pipe with the flange loose behind it. This means the stub end or taft always makes the face. A lap joint is used in low pressure applications because it is easily assembled and aligned. To reduce costs, these flanges are supplied without a hub.

 
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Flanges

Forged flanges are used as a connection component for pipes, valves, pumps and other equipment to form a pipework system. They provide easy access for cleaning, inspection, modification or repairs. Flanges are usually welded onto pipes or screwed onto a threaded pipe end and then joined with bolts to make the connection. The types of flanges are described and shown below.

 

  • Weld Neck Flange (WNRF)

Forged Weld Neck Flangeweld neck flange drawing

Weld neck flanges are circumferentially welded at the neck where the integrity of the butt welded area can be easily examined by radiography. The bores of both pipe and flange match, which reduces turbulence and erosion inside the pipeline. The weld neck is therefore durable in critical applications.

  • Slip-On Flange (SORF)

Forged Slip-On Flangeslip on flange

Slip-on flanges are fitted over the pipe and then fillet welded. Slip-on flanges are easy to use in fabricated applications.

  • Blind Flange (BLRF)

Forged Blind Ring Flangeblind flange drawing

Blind flanges are used to blank off pipelines, valves and pumps. They can also be used as an inspection cover. It is sometimes referred to as a blanking flange.

  • Socket Weld Flange (SWRF)

Forged Socket Weld Flangesocket weld flange drawing

Socket weld ring flanges are counter-bored to accept the pipe before being fillet welded. The bore of the pipe and flange are both the same to provide good flow characteristics.

  • Threaded Flange

Forged Threaded Flangethreaded flange drawing

Threaded flange are referred to as either threaded or screwed. They are used to connect other threaded components in low pressure, non-critical applications. No welding is required.

  • Lap Joint Flange (LJRF)

Forged Lap Joint Flangelap joint flange drawing

Lap joint flanges are always used with either a stub end or taft which is butt welded to the pipe with the flange loose behind it. This means the stub end or taft always makes the face. A lap joint is used in low pressure applications because it is easily assembled and aligned. To reduce costs, these flanges are supplied without a hub.

Flanges