Flanges

Slip-On Flange

 
 
This flange is counter bored to accept the pipe before being fillet welded. The bore of the pipe and flange are both the same therefore giving good flow characteristics.
     

Blind Flange

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

Lap Joint Flange

     
 
These 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. The lap joint is favoured in low pressure applications because it is easily assembled and aligned. To reduce cost these flanges can be supplied without a hub and/or in treated, coated carbon steel.
     

Threaded (Screwed), Flange

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

Socket Welding Flange

     
 
This flange is counter bored to accept the pipe before being fillet welded. The bore of the pipe and flange are both the same therefore giving good flow characteristics.
     

Welding Neck Flange

     
 
This flange is circumferentially welded into the system at its neck which means that 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 favoured in critical applications.
     

Orifice Flange

     
 
Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquid or gas in the respective pipeline. Pairs of pressure Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary.
     

Long Welding Neck Flange

     
 
Long welding neck flange Manufacturer antong supplies LWN flange , long welded neck forged Flange, Long welding neck Flanges in forged steel, Stainless Steel, Carbon steel etc.