Class 1500 Flange Dimensions, ANSI B16.5 Class 1500 LB Flanges

Class 1500 Flange Dimensions

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Specification Of Class 1500 Flanges :

Size: 1/2" (DN15) ~ 60" (DN1500)

Pressure: Class 1500

Type: Weld Neck, Threaded, Slip-On, Socket Weld, Lap Joint, Blind, Orifice Flange, Orifice Plate and Restriction Orifice Plate, Spectacle Blind, Spacer, Blanks

Face Type: Flat Face (FF), Raise Face (RF), Ring Joint (RJT)

Coating: Anti-Rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Dimension:  ANSI/ASME B16.5, ANSI/ASME B16.47 Series A (MSS SP-44), ANSI/ASME B16.47 Series B (API 605),
ANSI/ASME B16.36, ANSI/ASME B16.48 (API 590)


Class 1500 LB Flange Dimensions In mm


Bolt And Stud Dimensions Chart - ASME B16.5 Flanges

1500 LB. Flanges
# Bolts or Studs Dia of Bolts or Studs Length of Stud
RTJ 1/4 RF
4-1/4 4 0.75 4-1/4
4-1/2 4 0.75 4-1/2
5 4 0.88 5
5 4 0.88 5
5-1/2 4 1.00 5-1/2
5-3/4 8 0.88 5-3/4
6-1/4 8 1.00 6-1/4
5-3/4 8 1.13 7
6-3/4 8 1.25 7-3/4
7-1/2 8 1.50 9-3/4
7-3/4 12 1.38 10-1/4
8-3/4 12 1.63 11-1/2
9-1/4 12 1.88 13-1/4
10 16 2.00 14-3/4
11 16 2.25 16
11-1/2 16 2.50 17-1/2
13-1/4 16 2.75 19-1/2
14-1/4 16 3.00 21-1/4
18 16 3.50 24-1/4

Class 1500 Flange Pressure Rating

Rating Of Carbon Steel Flanges

Rating In “PSI”

The Table Shows The Maximum Pressure In PSI ASTM A105 / ASTM A350 LF2 / ASTM A350 LF3 / ASTM A350 LF6

Temperature (in F°) 1500#
< 100 3705
200 3395
300 3270
400 3170
500 3015
600 2840
650 2745
700 2655
750 2535
800 2055
850 1595
900 1150
950 685
1000 430
Hydrostatic Test Pressure (psig) 5575

RATING IN BARS

TEMP C° 1500#
   -29 / 38 255.3
50 250.6
100 233
150 225.4
200 219
250 209.7
300 199.1
325 193.6
350 187.8
375 181.8
400 173.6
425 143.8
450 115
475 87.2
500 58.8
538 29.5

RATING OF STAINLESS STEEL FLANGES

Flanges Pressure Rating in Bars ANSI Flanges (ASTM A182 F304L / ASTM A182 F316L)

TEMP C° 1500#
-29 TO 38 206.8
50 200.1
100 173.9
150 157
200 145.8
250 137.3
300 130.3
325 127.4
350 125.4
375 123.8
400 121.5
425 119.3
450 117.1

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