Ashcroft 80-81 - Isolation Rings - Manual (Page 5)

5
DIMENSION DRAWINGS (cont.) 4 - DIMENSION
DRAWINGS
Type 81 Bolt-Thru Isolation Ring
Ø BC
Ø ID
H
Ø BD
W
Ø OD
ANSI Nominal Inner Outer Bolt Bolt No. Of
ASME Pipe Diameter Diameter Width Circle Diameter Bolt
Class Size (ID) (OD) (W) (BC) (BD) Holes
2˝ 2.07 6.00 2.00 4.75 0.75 4 – 2.04 1.70 12.0
3˝ 3.07 7.50 2.00 6.00 0.75 4 – 2.04 1.70 18.4
150 4˝ 4.03 9.00 1.50 7.50 0.75 8 – 2.04 1.70 18.6
6˝ 6.07 11.00 1.50 9.50 0.88 8 – 2.04 1.70 23.9
8˝ 7.98 13.50 1.50 11.75 0.88 8 – 2.04 1.70 34.5
10˝ 10.02 16.00 1.50 14.25 1.00 12 – 2.04 1.70 44.5
2˝ 2.07 6.50 2.00 5.00 0.75 8 – 2.04 1.70 13.8
3˝ 3.07 8.25 2.00 6.62 0.88 8 – 2.04 1.70 22.0
300 4˝ 4.03 10.00 1.50 7.88 0.88 8 – 2.04 1.70 24.5
6˝ 6.07 12.50 1.50 10.62 0.88 12 – 2.04 1.70 34.9
8˝ 7.98 15.00 1.50 13.00 1.00 12 – 2.04 1.70 47.1
10˝ 10.02 17.50 1.50 15.25 1.13 16 – 2.04 1.70 58.8
Instrument Removal (H)
None
Safe Quick Needle Weight
Release (SQR) Valve Lbs.
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