7/25/2019 Blind Flanges Catalogue

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ALSTOM MUARA TAWAR: ABOVEGROUND GRP PIPINGS

BLIND FLANGES

Blind flange thickness dimension are suitable for design pressure = 4 BARG.

D (in) Pipe

Dia OD (in) B.C.D (in) T (mm)

No. of

holes

Bolt

Hole (in)

1 4 1/4 3 1/8 12.7 4 5/8

2 6 4 3/4 12.7 4 3/4

3 7 1/2 6 13.4 4 3/4

4 9 7 1/2 17.3 8 3/4

5 10 8 1/2 19.1 8 7/8

6 11 9 1/2 20.3 8 7/8

8 13 1/2 11 3/4 23.3 8 7/8

10 16 14 1/4 28.9 12 1

12 19 17 33.3 12 1

14 21 18 3/4 35.0 12 1 1/8

16 23 1/2 21 1/4 40.2 16 1 1/8

20 27 1/2 25 44.9 20 1 1/4

D, OD, B.C.D and Bolt Hole are in inches.

Thickness are in mm.

Bolt diamter is hole size minus 1/8 inch.

Blind Flanges are drilled to ANSI B16.5 CLASS 150.

O.D.

B.C.D.

T