Industrial Pipe Flange

Class 150 Flange

ANSI B16.5 Carbon And Stainless Steel Class 150# forged flanges Dimensions in MM And Pressure Rating


Class 150 components are useful in applications where there is a low pressure requirement. Using a Class 150 Pipe Flanges Pressure Ratinge for high pressure applications could be disastrous because the force of the flow of media would be very high, thus causing the flanges to crack and the entire application to fail. Like most fittings under standard ASME B16.5, the attention is given to details including the material, testing method, markings, Class 150# Flange Dimension, weight size etc. Since these flanges play an important role in the modification and inspection of piping systems, careful consideration of these Stainless Steel Flanges - ASME / ANSI Class 150 is mandatory.

Class 150 Blind Flanges is used for the purpose of cleaning, modifying or inspection, as it aids the worker to terminate the flow of media in a piping system. Fundamentally a blind flanges is a type of component, unlike other flanges, that neither has a hub nor a bore or a hole in its centre. The ASME B16.5 is a standard that also includes both requirements and recommendations for bolting, gaskets, as well as Flanges 150 LB As Per ANSI B 16.5 joints. To improve properties of the material, processes like heat treatment or even forging is performed on the ASME B16.5 Class 150 Flange. The end result yields a flanges that is stronger while also having a smoother surface and better mechanical properties.

ASME B16.5 Class 150 Flange

ASME B16.5 Class 150 Flange

Class 150 Flange

Class 150 Flange

Flanges 150 LB

Flanges 150 LB


class 150 pipe flanges
Table of Contents


Class 150# Flange Dimensions with Tolerances

Class 150# Flange Dimensions with Tolerances

Nprmal Size Of Pipe Flanges OD Thick. of Flanges 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

Pressure Rating Of ANSI B16.5 Class 150 Forged Flanges, View Stainless Steel Class 150 Flanges Weight Chart, Specification Of Flanges 150 LB As Per ANSI B 16.5.


Class 150 Forged Flanges Pressure Rating Class

Temperature (in F°) 150LB 300LB 400LB 600LB 900LB 1500LB 2500LB
< 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


ANSI B16.5 Flanges 150 LB Specification List

Specification : ASME B16.5 Class 150 Flange
Production technique
  • Heat treated, Forged and machined
Size Chart 1/2" to 48"
Standards MSS S44, ISO70051, EN-1092, DIN, ANSI, ASME/ANSI B16.5/16.36/16.47A/16.47B, BS1560-3.1, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, API7S-15, EN1092, API7S-43, API605, BS4504
EN Standards 40Bar 25Bar 10Bar 16Bar 6Bar
Manufacturing Shapes Ring Type Joint, Flat Face, Raised Face, Lap-Joint Face, Small Tongue, Large Tongue & Groove, Large Male-Female, Groove, Small Male-Female
Pressure Rating ANSI 600 LBS, 2500 LBS 900 LBS, 1500 LBS, Class 150 LBS, 300 LBS
Most common types Threaded / Forged / Plate /Screwed
Japanese Standards 16 K 20 K, 5K, 10 K, 40 K, 30 K, 63 K
UNI Standards 25Bar 6Bar 40Bar 10Bar 16Bar

Thickness Of Carbon Steel Class 150 Flanges, View Class 150 Pipe Flanges Size Chart, Class 150# Flanges Suppliers In ASME B 16.5.Class 150 Blind Flanges Stockists In India.


ASA B16.5 Class 150 Pipe Flanges Thickness

Normal Size Of Pipe "A"
(O.D.)		 "B"
(Thick.)		 "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

Alloy Steel Class 150 Flanges Schedule Chart

Class Nominal Size Of Pipe SORF NPT SW Lap Joint BLRF 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

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Stainless Steel Class 150 Flanges Size Chart

Normal Size Of Pipe
NPS
(inch)		 Class 150
Dia. of
Flange
(inch)		 No.
of
Bolts		 Dia. of
Bolts
(inch)		 Dia. 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

Carbon Steel Class 150 Flanges Bolt Length

ASME B16.5 Class 150 Flanges
Nominal Size Of Pipe # 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

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Available Awwa Class 150 Flanges Material Types

3 inch, Grooved 316L, Stainless Steel 150# Flange

3 inch, Grooved 316L, Stainless Steel 150# Flanges

1/2 inch, 304L, Raised Face 150# Flange

1/2 inch, 304L, Raised Face 150# Flanges

2-1/2 inch, F316L, Carbon Steel SORF Class 150 Flange

2-1/2 inch, F316L, Carbon Steel SORF Class 150 Flanges

2 inch, 316L, Flat Face 150LB Flang

2 inch, 316L, Flat Face 150LB Flang

1-1/4 inch, ASTM A182 321, RF, Slip-On 150# Flange

1-1/4 inch, ASTM A182 321, RF, Slip-On 150# Flanges

3 inch. Weldneck 304L, Raised Face 150# Flange

3 inch. Weldneck 304L, Raised Face 150# Flanges

8 inch, 316L, 150# Schedule 10 BLRF Flange

8 inch, 316L, 150# Schedule 10 BLRF Flange

1/2 inch, Lap Joint 310s Sch 40 Class 150 Flange

1/2 inch, Lap Joint 310s Sch 40 Class 150 Flanges

1 inch, F321, Schedule 80, Raised Face SW 150LB Flange

1 inch, F321, Schedule 80, Raised Face SW 150LB Flanges

1-1/2 inch, Weldneck 316L, Raised Face 150# Flange

1-1/2 inch, Weldneck 316L, Raised Face 150# Flanges

1/2 inch, F317L, Sch 120, Socket Weld 150# Flange

1/2 inch, F317L, Sch 120, Socket Weld 150# Flanges

1-1/4 inch, F316L, Stainless Steel Threaded 150# Flange

1-1/4 inch, F316L, Stainless Steel Threaded 150# Flanges



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