» Flange & Fitting » ASME B16.5 Class 150 Blind Flange

ASME B16.5 Class 150 Blind Flange

August 19, 2019

Technical Drawing

150LB blind flange drawing

A typical drawing for Class 150 blind flange, ASME B16.5.

Bolts for 150LB blind flange

Both machine bolt with nuts and stud bolt with nuts can be applied to 150# blind flange.

Dimensions of 150# Blind Flanges

NPSDGKT
1/29034.960.39.6
3/410042.969.911.2
111050.879.412.7
1-1/411563.588.914.3
1-1/212573.098.415.9
215092.1120.717.5
2-1/2180104.8139.720.7
3190127.0152.422.3
3-1/2215139.7177.822.3
4230157.2190.522.3
5255185.7215.922.3
6280215.9241.323.9
8345269.9298.527.0
10405323.8362.028.6
12485381.0431.830.2
14535412.8476.333.4
16595469.9539.835.0
18635533.4577.938.1
20700584.2635.041.3
22750641.4692.244.5
24815692.2749.346.1
*D: outside diameter of blind flange; K: diameter of bolt circle; G: outside diameter of raised face; T: minimum thickness of 150LB blind flange; All units are mm.

NPSndlLMass
1/245/81/2550.42
3/445/81/2650.61
145/81/2650.86
1-1/445/81/2701.17
1-1/245/81/2701.53
243/45/8852.42
2-1/243/45/8903.94
343/45/8904.93
3-1/283/45/8906.17
483/45/8907.00
587/83/4958.63
687/83/410011.3
887/83/411019.6
101217/811528.8
121217/812043.2
14121-1/8113558.1
16161-1/8113576.0
18161-1/41-1/814593.7
20201-1/41-1/8160122
22201-3/81-1/4170
24201-3/81-1/4170185
*n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of machine bolt or stud bolt; Mass: approximate weights/masses of the flange; For all blind flanges of class 150, t (height of raused face)=2mm. All units are mm except that d and l are provided in inch and mass in kg.

ASME B16.5 Blind Flanges, Classes
150#300#400#600#
900#1500#2500#-
*Click to view the dimensions and weights of blind flanges of each pressure rating.

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