Spectacle Blind - ANSI Class 300 (in)

on 21 December 2015. Posted in Accessory Datasheets

Spectacle Blind - ANSI Class 300 (in) 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".
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	2.00	0.62	2.62	0.25	4.00	1.00	1.50	N/A
3/4	2.50	0.82	3.25	0.25	4.00	1.00	1.50	N/A
1	2.75	1.05	3.50	0.25	4.00	1.00	1.50	N/A
1 1/4	3.12	1.66	3.88	0.25	4.00	1.00	1.50	N/A
1 1/2	3.62	1.90	4.50	0.25	4.00	1.00	2.00	N/A
2	4.25	2.38	5.00	0.38	4.00	1.00	2.00	0.75
2 1/2	5.00	2.88	5.88	0.38	4.00	1.00	2.50	0.875
3	5.75	3.50	6.62	0.38	4.00	1.00	2.50	0.875
3 1/3	6.38	4.00	7.25	0.50	4.00	1.00	2.50	0.875
4	7.00	4.50	7.88	0.50	4.00	1.00	2.50	0.875
5	8.38	5.56	9.25	0.62	4.00	1.00	3.00	0.875
6	9.75	6.62	10.62	0.62	4.00	1.00	3.00	0.875
8	12.00	8.62	13.00	0.88	4.00	1.00	3.50	1.00
10	14.12	10.75	15.25	1.00	5.00	1.00	4.00	1.125
12	16.50	12.75	17.75	1.12	5.00	1.50	4.00	1.25
14	19.00	14.00	20.25	1.25	5.00	1.50	4.75	1.25
16	21.12	16.00	22.50	1.50	5.00	1.50	4.88	1.375
18	23.38	18.00	24.75	1.62	5.00	1.50	4.50	1.375
20	25.62	20.00	27.00	1.75	6.00	1.50	4.75	1.375
22	-	-	-	-	-	-	-	-
24	30.38	24.00	32.00	2.00	6.00	1.50	5.50	1.625

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