API 6A:When Pipe Flange Used In API 5L Pipeline

API 6A:When pipe flange used in API 5L pipeline

API 6A FLANGE.jpg


API 5L Line Pipe Specifications for these pipes regulate usage for Grade A and Grade B pipes.ASME flanges are commonly used in industrial process systems handling water, steam, air and gas. API flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases.API 6A is the API Standard for oil and gas wellhead equipment such as gate valves.

 

We can supply API 6A flange according with ASTM A350 LF2 that your company needs for use in the oil or natural gas industries.The flanges collocated with in API 5L X52, X56, X60, X65 and X70 as follows:

1/2" to 24" in 150lbs, 300lbs and 600lbs

1/2" to 8" in 1500lbs

Other sizes quickly available from mill stock.


ASTM material standards include:

A105

A350 LF 1/LF2 / 1LF3

A694 F42 F52 F56 / F60 / F65 / F70  

A182 F316L /F51 /F55


The flange standards API 6A and ASME/ANSI B16.5 have the same dimensions - but the API 6A flanges are rated for higher pressures as indicated below:

API vs. ASME/ANSI Flanges with the same Dimensions:  


Flange

Pressure Class Rating (psi)

 ASME/ANSI B16.5

API 6A

Weld neck flange

600

2000

900

3000

1500

5000

Blind flange

Threaded flange

600

2000

900

3000

1500

5000