ASMEANSI B16.48 LINE BLANKS FLANG| forged flange | forged pipe fitting

Specification:

DIMENSIONS OF CALSS 150						DIMENSIONS OF CALSS 300
RAISED FACE FIGURE 8 BLANKS						RAISED FACE FIGURE 8 BLANKS
NPS	Inside	Outside	Centerline	Thickness	Tie bar	NPS	Inside	Outside	Centerline	Thickness	Tie bar
	Diameter	Diameter	Dimension	t.in.	W.in.		Diameter	Diameter	Dimension	t.in.	W.in.
	B.in.	O.in.	A.in.				B.in.	O.in.	A.in.
1/2	0.62	1.75	2.38	0.12	1.5	1/2	0.62	0	2.62	0.25	1.5
3/4	0.82	2.12	2.75	0.12	1.5	3/4	0.82	2.5	3.25	0.25	1.5
1	1.05	2.5	3.12	0.12	1.5	1	1.05	2.75	3.5	0.25	1.5
1.1/4	1.66	2.88	3.5	0.25	1.5	1.1/4	1.66	3.12	3.88	0.25	1.5
1.1/2	1.9	3.25	3.88	0.25	1.5	1.1/2	1.9	3.62	4.5	0.25	2
2	2.38	4	4.75	0.25	2	2	2.38	4.25	5	0.38	2
2.1/2	2.88	4.75	5.5	0.25	2	2.1/2	2.88	5	5.88	0.38	2.5
3	3.5	5.25	6	0.25	2.5	3	3.5	5.75	6.62	0.38	2.5
3.1/2	4	6.25	7	0.38	2.5	3.1/2	4	6.38	7.25	0.5	2.5
4	4.5	6.75	7.5	0.38	2.5	4	4.5	7	7.88	0.5	2.5
5	5.66	7.62	8.5	0.38	3	5	5.56	8.38	9.25	0.62	3
6	6.62	8.62	9.5	0.5	3	6	6.62	9.75	10.62	0.62	3
8	8.62	10.88	11.75	0.5	3	8	8.62	12	13	0.88	3.5
10	10.75	13.25	14.25	0.62	4	10	10.75	14.12	15.25	1	4
12	12.75	16	17	0.75	4	12	12.75	16.5	17.75	1.12	4
14	14	17.62	18.75	0.75	4.25	14	14	19	20.25	1.25	4.75
16	16	20.12	21.25	0.88	4.25	16	16	21.12	22.5	1.5	4.88
18	18	21.5	22.75	1	4.5	18	18	23.38	24.75	1.62	4.5
20	20	23.75	25	1.12	4.75	20	20	25.62	27	1.75	4.75
24	24	28.12	29.5	1.25	5.5	24	24	30.38	32	2	5.5

DIMENSIONS OF CALSS 600						DIMENSIONS OF CALSS 900
RAISED FACE FIGURE 8 BLANKS						RAISED FACE FIGURE 8 BLANKS
NPS	Inside	Outside	Centerline	Thickness	Tie bar	NPS	Inside	Outside	Centerline	Thickness	Tie bar
	Diameter	Diameter	Dimension	t.in.	W.in.		Diameter	Diameter	Dimension	t.in.	W.in.
	B.in.	O.in.	A.in.				B.in.	O.in.	A.in.
1/2	0.62	2	2.62	0.25	1.5	1/2	0.62	2.38	3.25	0.25	1.5
3/4	0.82	2.5	3.25	0.25	1.5	3/4	0.82	2.62	3.5	0.25	1.62
1	1.05	2.75	3.5	0.25	2.25	1	1.05	3	4	0.25	2.25
1.1/4	1.44	3.12	3.88	0.38	2.25	1.1/4	1.44	3.38	4.38	0.38	2.25
1.1/2	1.68	3.62	4.5	0.38	2.62	1.1/2	1.68	3.75	4.88	0.38	2.62
2	2.16	4.25	5	0.38	2.25	2	2.16	5.5	6.5	0.5	2.25
2.1/2	2.64	5	5.88	0.5	2.62	2.1/2	2.64	6.38	7.5	0.5	2.62
3	3.26	5.75	6.62	0.5	2.62	3	3.26	6.5	7.5	0.62	2.62
3.1/2	3.76	6.25	7.25	0.62	3	4	4.26	8	9.25	0.75	3
4	4.26	7.5	8.5	0.62	3	5	5.3	9.62	11	0.88	3.38
5	5.3	9.38	10.5	0.75	3.38	6	6.36	11.25	12.5	1	3.38
6	6.36	10.38	11.5	0.88	3.38	8	8.33	14	15.5	1.38	3.75
8	8.33	12.5	13.75	1.12	3.75	10	10.42	17	18.5	1.62	4.12
10	10.42	15.62	17	1.38	4.12	12	12.39	19.5	21	1.88	4.12
12	12.39	17.88	19.25	1.62	4.12	14	13.62	20.38	22	2.12	4.5
14	13.62	19.25	20.75	1.75	4.5	16	15.62	22.5	24.25	2.38	4.88
16	15.62	22.12	23.75	2	4.88	18	17.62	25	27	2.62	5.25
18	17.62	24	25.75	2.12	5.25	20	19.56	27.38	29.5	2.88	5.25
20	19.56	26.75	28.5	2.5	5.25	24	23.5	32.88	35.5	3.5	6
24	23.5	31	33	2.88	6

Product Details

It is a combination of the two that can be rotated to function as Single Bind or a Ring Spacer. This kind of flange is generally a piece of metal than is cut to fit between two pipe flanges and usually sandwiched between two gaskets a spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The Sharp is similar to a pair of glasses or spectacles – hence the name spectacle blind flange. One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance. They are generally installed as a permanent device to separate process piping system.

The whole idea of a spectacle blind is so that one can be absolutely sure that an item of equipment is properly and securely blanked off with no possibility of any flow or leakage through a valve during maintenance. The flow can be diverted to other items of equipment but not just by passed around the blank as this would compromise the safety function of the spectacle blind. The flow has to valve off and pressure relieved prior to loosening flange bolts and swinging the blind.

Size: 1/2" ~ 24" (DN15 ~ DN600)

Pressure Ratings: Class 150, Class 300LB, Class 600LB, Class 900LB, Class 1500LB, Class 2500;

Surface treatment: antirust oil, black / yellow / transparent / electric galvanized / hot galvanized

Packing: sea-worthy packing in wooden cases or on wooden pallets or as per customers' special requirement

Min Order Quantity: According to customer's requirement

Delivery: 30 days after receiving the formal order;

Payment: By T/T or L/C

Applications range: Petroleum, chemical industry, water conversancy, electric power, Natural gas, Coal gas, Water power and other pipeline projects.

More information is available upon receipt of your enquiry.

2. Detail Information

Material:

ASTM A105 ASTM A181, ASTM A516, ASTM A36 STANDARD SPECIFICATION FOR FORGINGS, CARBON STEEL FOR PIPING COMPONENTS.

A182 F304/F304L, F316/F316L, 309, 310, 317L, 321, 347, 904L STANDARD SPECIFICATION FOR FORGED OR ROLLED ALLOY‐STEEL PIPE FLANGES, FORGED FITTINGS AND VALVES AND PARTS FOR HIGH TEMPERATURE SERVICE.

ASTM A350 STANDARD SPECIFICATION FOR FORGINGS, CARBON AND LOW‐ALLOY STEEL, REQUIRING NOTCH TOUGH NESS TESTING FOR PIPING COMPONENTS.

ASTM A694 STANDARD SPECIFICATION FOR FORGINGS, CARBON AND ALLOY‐STEEL, FOR PIPE FLANGES, FITTINGS, VALVES, AND PARTS FOR HIGH‐PRESSURE TRASMISSIONS SERVICE.

Standard, Dimensions&Weight:

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Pipe Fittings

ASMEANSI B16.48 LINE BLANKS FLANGE

Specification:

Product Details

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