API Std 650 - Flush-type Shell Connection (mm)

Written by Jerry Ratzlaff on . Posted in American Petroleum Institute

American Petroleum Institute (API)

standards

  • API Std 650 - Standard for Welded Tanks for Oil Storage

 

  • [a] For circular openings, this valve will be 1/2 of the ID based on nozzle neck specified.
Class 150

Nominal

Height of

Flange Size

(NPS)

Height

of

Opening

 

\(h\)

Width

of

Opening

 

\(b\)

Arc Width

of Shell

Reinforcing

Plate

\(W\)

Upper Corner

Radius of

Opening

 

\(r_1\)

Lower Corner

Radius of Shell

Reinforcing

Plate

\(r_2\)

8 200 200 950 OD of 8 NPS [a] 350
12 300 300 1300 OD of 12 NPS [a] 450
16 300 500 1600 150 450
18 300 550 1650 150 450
20 300 625 1725 150 450
24 300 900 2225 150 450