Spectacle Blind - ANSI Class 2500 (in)

Written by Matt Milbury on . Posted in Accessory Datasheets

A ring spacer is bored to match the pipe I.D. and thickness of the spacer it replaces.

A single spacer is has no bore and is designed to complete shut-off of a pipeline or valve.

A spectical blind is a combination of both a ring and single spacer. To make switching from one to the other, especially in the larger sizes, a bolt hole or slot in the spacer bar is provided for rotation.

Surface finish to be specified.

These blind/spacers are designed for ASME B31.3 and ASME B16.5.

Pressure temperature rating in accordance with ANSI/ASME B16.48 for sizes 1/2" to 24".

Dimensional Data

Pipe

Size(NPS)

Outside

Diameter

A

Diameter

of Bore

B

Blind

Distance

C

Plate

Thickness

D

Handle

Length

E

Handle

Width

F

Handle

Width

G

Lift Hole

Diameter

H

1/2 2.62 0.62 3.50 0.38 5.00 1.00 1.50 N/A
3/4 2.88 0.82 3.75 0.38 5.00 1.00 1.62 0.875
1 3.25 1.05 4.25 0.38 5.00 1.00 2.50 1.00
1 1/4 4.00 1.38 5.12 0.50 5.00 1.00 2.50 1.125
1 1/2 4.50 1.61 5.75 0.62 5.00 1.00 2.75 1.25
2 5.62 2.07 6.75 0.62 5.00 1.00 2.75 1.125
2 1/2 6.50 2.47 7.75 0.75 6.00 1.00 3.00 1.25
3 7.62 3.07 9.00 0.88 6.00 1.00 3.00 1.375
4 9.12 4.03 10.75 1.12 7.00 1.00 3.50 1.625
5 10.88 5.05 12.75 1.38 7.00 1.00 3.50 1.875
6 12.38 6.06 14.50 1.62 8.00 1.50 3.50 2.125
8 15.12 7.81 17.25 2.12 8.00 1.50 4.00 2.125
10 18.62 9.75 21.25 2.62 9.00 1.50 4.50 2.625
12 21.50 11.37 24.38 3.12 9.00 1.50 4.50 2.875