The ASME B16.5 is a standard that provides recommendations for the production and purchase of several kinds of flanges including a blind flange. An ASME B16.5 Class 150 Flange is used to either clean, modify or inspect a piping system. A blind flange is used for any of the above mentioned purposes by terminating the flow of media across the end of a piping system. The blind flange is basically a type of flange that does not have a hub or a bored i.e. a hole in its centre. Class 150 Blind Flanges have the face thickness of a flange, a matching face type, in addition to a similar bolting pattern. Typically blind flanges are recommended to be used to seal a nozzle opening on a pressure vessel.
The ASME B16.5 is a standard that not only covers Flanges but also their Fittings and the pressure-temperature ratings. Apart from Class 150 Pipe Flanges Pressure Ratinge the standard includes the following pressure rating class designations i.e. 300, 400, 600, 900, 1500, and 2500. Other recommendations covered by the specified ASME B16.5 standard include the materials to be used, tolerances, marking, Class 150# Flange Dimension, testing, and methods of designating openings for pipe flanges and flanged fittings.
Buy 1/2 Inch, WN, SCH-10 * SCH-120, FF, Forged, RF, Carbon And Stainless Steel Flanges - ASME / ASME Class 150.
The Flanges 150 LB As Per ANSI B 16.5 are available between a size range of NPS 1/2 through NPS 24, with their requirements being provided in both metric and U.S units. Limited to flanges and relevant fittings, the Stainless Steel Flanges - ASME / ANSI Class 150 made from forged, cast, or plate materials. Included in the ASME B16.5 standard are requirements and recommendations regarding bolting, gaskets, in addition to flange joints.
NPS | OD of Flange | Thick. of Flange | Diam. of Raised Face | Diam. of Hub at Base | Lengtd Tdru Hub | Diam. or Bore | Diam. of Hub at Bevel | Radius of Fillet | Deptd of Socket | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
WN | SORF Tdreaded Socket | Lap Joint | Slip-on Socket | Lap Joint | ||||||||
O | Q | R | X | Y | Y | Y | W | B | H | r | Z | |
1/2 | 3-1/2 | 7/16 | 1-3/8 | 1-3/16 | 1-7/8 | 5/8 | 5/8 | .88 | .90 | .84 | 1/8 | 3/8 |
3/4 | 3-7/8 | 1/2 | 1-11/16 | 1-1/2 | 2-1/16 | 5/8 | 5/8 | 1.09 | 1.11 | 1.05 | 1/8 | 7/16 |
1 | 4-1/4 | 9/16 | 2 | 1-15/16 | 2-3/16 | 11/16 | 11/16 | 1.36 | 1.38 | 1.32 | 1/8 | 1/2 |
1-1/4 | 4-5/8 | 5/8 | 2-1/2 | 2-5/16 | 2-1/4 | 13/16 | 13/16 | 1.70 | 1.72 | 1.66 | 3/16 | 9/16 |
1-1/2 | 5 | 11/16 | 2-7/8 | 2-9/16 | 2-7/16 | 7/8 | 7/8 | 1.95 | 1.97 | 1.90 | 1/4 | 5/8 |
2 | 6 | 3/4 | 3-5/8 | 3-1/16 | 2-1/2 | 1 | 1 | 2.44 | 2.46 | 2.38 | 5/16 | 11/16 |
2-1/2 | 7 | 7/8 | 4-1/8 | 3-9/16 | 2-3/4 | 1-1/8 | 1-1/8 | 2.94 | 2.97 | 2.88 | 5/16 | 3/4 |
3 | 7-1/2 | 15/16 | 5 | 4-1/4 | 2-3/4 | 1-3/16 | 1-3/16 | 3.57 | 3.60 | 3.50 | 3/8 | 13/16 |
3-1/2 | 8-1/2 | 15/16 | 5-1/2 | 4-13/16 | 2-13/16 | 1-1/4 | 1-1/4 | 4.07 | 4.10 | 4.00 | 3/8 | 7/8 |
4 | 9 | 15/16 | 6-3/16 | 5-5/16 | 3 | 1-5/16 | 1-5/16 | 4.57 | 4.60 | 4.50 | 7/16 | 15/16 |
5 | 10 | 15/16 | 7.5/16 | 6-7/16 | 3-1/2 | 1-7/16 | 1-7/16 | 5.66 | 5.69 | 5.56 | 7/16 | 15/16 |
6 | 11 | 1 | 8-1/2 | 7-9/16 | 3-1/2 | 1-9/16 | 1-9/16 | 6.72 | 6.75 | 6.63 | 1/2 | 1-1/16 |
8 | 13-1/2 | 1-1/8 | 10-5/8 | 9-11/16 | 4 | 1-3/4 | 1-3/4 | 8.72 | 8.75 | 8.63 | 1/2 | 1-1/4 |
10 | 16 | 1-3/16 | 12-3/4 | 12 | 4 | 1-15/16 | 1-15/16 | 10.88 | 10.92 | 10.75 | 1/2 | 1-5/16 |
12 | 19 | 1-1/4 | 15 | 14-3/8 | 4-1/2 | 2-3/16 | 2-3/16 | 12.88 | 12.92 | 12.75 | 1/2 | 1-9/16 |
14 | 21 | 1-3/8 | 16-1/4 | 15-3/4 | 5 | 2-1/4 | 3-1/8 | 14.14 | 14.18 | 14.00 | 1/2 | 1-5/8 |
16 | 23-1/2 | 1-7/16 | 18-1/2 | 18 | 5 | 2-1/2 | 3-7/16 | 16.16 | 16.19 | 16.00 | 1/2 | 1-3/4 |
18 | 25 | 1-9/16 | 21 | 19-7/8 | 5-1/2 | 2-11/16 | 3-13/16 | 18.18 | 18.20 | 18.00 | 1/2 | 1-15/16 |
20 | 27-1/2 | 1-11/16 | 23 | 22 | 5-11/16 | 2-7/8 | 4-1/16 | 20.20 | 20.25 | 20.00 | 1/2 | 2-1/8 |
24 | 32 | 1-7/8 | 27-1/4 | 26-1/8 | 6 | 3-1/4 | 4-3/8 | 24.25 | 24.25 | 24.00 | 1/2 | 2-1/2 |
Temperature (in F°) | Classes 150 | Classes 300 | Classes 400 | Classes 600 | Classes 900 | Classes 1500 | Classes 2500 |
< 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
Hydrostatic Test (psig) | 450 | 1125 | 1500 | 2225 | 3350 | 5575 | 9275 |
Specification : | ASME B16.5 Class 150 Flanges |
Supporting Flanges Material: | Ring Joint, Gasket, Flanges Bolts |
Common Types of 150# Flanges : | Flanges 150 LB WNRF Classes 150 RTJ 150# BLRF Classes 150 SORF |
Size Chart : | 1/2″ (15 NB) To 48″ (1200NB) |
Application: | Chemical Industry Water Pipeline Industry Natural Gas Industry Oil And Gas Industry Nuclear Power Plant Fabrication Industry |
Standards : | JIS, MSS SP44, EN-1092, ASME B16.38, UNI, ASME B16.47 (Series A, Series B), PN, ISO, BS10, ASME B16.5, AWWA, DIN, GOST |
Design For Size: | ANSI, ASME, ASA, PN, JIS, EN, DIN, BS |
Machining Equipment: | Press machine, Pushing Machine, Electric bevelling machine, Bending machine, Sand-blasting machine etc |
Coating Flange Faces : | Oil Black Paint, Yellow Transparent, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized |
Production Process: | Forged, Heat Treated and Machined |
Connect Type Type: | LJF, LMF, RTJ, SMF, RF, FF |
Pressure Rating Table: | Classes 150 LBS, Classes 300 LBS, Classes 600 LBS, Classes 900 LBS, Classes 1500 LBS, Classes 2500 LBS |
class 150 Expander Flanges
ANSI B16.5 Classes 150 Socket-weld Flanges
150# High hub Blind Flanges
Welding Neck Flange ANSI B16.5 150 Lbs
150# Rf Threaded Flanges
ANSI B16.5 Class 150 Lap Joint Flanges
Class 150 Long Weld Neck Flanges
ANSI/ASME B16.5 Class 150 Forged Flanges
Class 150 Plate Flanges
ANSI 150 Square Flanges
Class 150 Puddle Flanges
ANSI 150 Flange Adapter
CLASSES | Nominal Pipe Size | Slip On | Threaded | Socket Weld | Lap Joint | Blind | Weld Neck |
150 lb | ½ | 1 | 1 | 2 | 1 | 2 | 2 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 | |
1 | 2 | 2 | 2 | 2 | 2 | 3 | |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 | |
1½ | 3 | 3 | 3 | 3 | 4 | 4 | |
2 | 5 | 5 | 5 | 5 | 5 | 6 | |
2½ | 8 | 8 | 8 | 8 | 7 | 10 | |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 | |
3½ | 11 | 12 | 11 | 11 | 13 | 12 | |
4 | 13 | 13 | 13 | 13 | 17 | 16.5 | |
5 | 15 | 15 | 15 | 15 | 20 | 21 | |
6 | 19 | 19 | 19 | 19 | 27 | 26 | |
8 | 30 | 30 | 30 | 30 | 47 | 42 | |
10 | 43 | 43 | 43 | 43 | 70 | 54 | |
12 | 64 | 64 | 64 | 64 | 123 | 88 | |
14 | 90 | 90 | 90 | 105 | 140 | 114 | |
16 | 106 | 98 | 98 | 140 | 180 | 140 | |
18 | 130 | 130 | 130 | 160 | 220 | 165 | |
20 | 165 | 165 | 165 | 195 | 285 | 197 | |
22 | 185 | 185 | 185 | 245 | 355 | 225 | |
24 | 220 | 220 | 220 | 275 | 430 | 268 |
150 LB. Flanges |
||||
---|---|---|---|---|
Nominal Pipe Size |
# Bolts or Studs |
Dia of Bolts or Studs |
Length of Stud |
|
1/16 RF |
RTJ |
|||
1/2 |
4 |
0.50 |
2-1/4 |
- |
3/4 |
4 |
0.50 |
2-1/2 |
- |
1 |
4 |
0.50 |
2-1/2 |
3 |
1-1/4 |
4 |
0.50 |
2-3/4 |
3-1/4 |
1-1/2 |
4 |
0.50 |
2-3/4 |
3-1/4 |
2 |
4 |
0.63 |
3-1/4 |
3-3/4 |
2-1/2 |
4 |
0.63 |
3-1/2 |
4 |
3 |
4 |
0.63 |
3-1/2 |
4 |
3-1/2 |
8 |
0.63 |
3-1/2 |
4 |
4 |
8 |
0.63 |
3-1/2 |
4 |
5 |
8 |
0.75 |
3-3/4 |
4-1/4 |
6 |
8 |
0.75 |
4 |
4-1/2 |
8 |
8 |
0.75 |
4-1/4 |
4-3/4 |
10 |
12 |
0.88 |
4-1/2 |
5 |
12 |
12 |
0.88 |
4-3/4 |
5-1/4 |
14 |
12 |
1.00 |
5-1/4 |
5-3/4 |
16 |
16 |
1.00 |
5-1/4 |
5-3/4 |
18 |
16 |
1.13 |
5-3/4 |
6-1/4 |
20 |
20 |
1.13 |
6-1/4 |
6-3/4 |
24 |
20 |
1.25 |
6-3/4 |
7-1/4 |
NPS NPS (inch) |
Class 150 | ||||
---|---|---|---|---|---|
Diammeter of Flange (inch) |
No. of Bolts |
Diammeter of Bolts (inch) |
Diammeter of Bolt Holes (inch) |
Bolt Circle (inch) |
|
1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
12 | 19 | 12 | 7/8 | 1 | 17 |
14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
NPS | "A" (Outer Diameter) |
"B" (Thickness) |
"C" (RF Diameter) |
"D" (B.C.D.) |
# Bolt Holes |
Diameter of Bolt Holes |
Appr. Weight |
1/2" | 3-1/2 | 7/16 | 1-3/8 | 2-3/8 | 4 | 5/8 | 2 |
3/4" | 3-7/8 | 1/2 | 1-11/16 | 2-3/4 | 4 | 5/8 | 2 |
1" | 4-1/4 | 9/16 | 2 | 3-1/8 | 4 | 5/8 | 2 |
1-1/4" | 4-5/8 | 5/8 | 2-1/2 | 3-1/2 | 4 | 5/8 | 3 |
1-1/2" | 5 | 11/16 | 2-7/8 | 3-7/8 | 4 | 5/8 | 3 |
2" | 6 | 3/4 | 3-5/8 | 4-3/4 | 4 | 3/4 | 4 |
2-1/2" | 7 | 7/8 | 4-1/8 | 5-1/2 | 4 | 3/4 | 7 |
3" | 7-1/2 | 15/16 | 5 | 6 | 4 | 3/4 | 9 |
3-1/2" | 8-1/2 | 15/16 | 5-1/2 | 7 | 8 | 3/4 | 13 |
4" | 9 | 15/16 | 6-3/16 | 7-1/2 | 8 | 3/4 | 17 |
5" | 10 | 15/16 | 7-5/16 | 8-1/2 | 8 | 7/8 | 20 |
6" | 11 | 1 | 8-1/2 | 9-1/2 | 8 | 7/8 | 27 |
8" | 13-1/2 | 1-1/8 | 10-5/8 | 11-3/4 | 8 | 7/8 | 47 |
10" | 16 | 1-3/16 | 12-3/4 | 14-1/4 | 12 | 1 | 67 |
12" | 19 | 1-1/4 | 15 | 17 | 12 | 1 | 123 |
14" | 21 | 1-3/8 | 16-1/4 | 18-3/4 | 12 | 1-1/8 | 139 |
16" | 23-1/2 | 1-7/16 | 18-1/2 | 21-1/4 | 16 | 1-1/8 | 187 |
18" | 25 | 1-9/16 | 21 | 22-3/4 | 16 | 1-1/4 | 217 |
20" | 27-1/2 | 1-11/16 | 23 | 25 | 20 | 1-1/4 | 283 |
24" | 32 | 1-7/8 | 27-1/4 | 29-1/2 | 20 | 1-3/8 | 415 |