18 300# 1/8 GRAFLEX 2661/1661 WITH 316 FOIL INSERT FULL FACE GASKET

$105.88891/EA

Quantity	Price
Quantity	Price
1	$105.88891/ EA
30	$98.82612/ EA
120	$72.36448/ EA
360	$52.24559/ EA

5-7 Working Days

Product Specification
Governing Standards
Service Limits
Physical Properties
Dimensional Specifications

Product Specification

Pipe Diameter	18
Flange Rating	300#
Full Face or Ring	Full Face
Inside Diameter	18.0000
Outside Diameter	28.0000
Thickness	1/8
Core Material	316 Stainless Steel
Sheet Material	Teadit 2661/1661
Bolt Hole Circle	24.75
# of Bolt Holes	24
Bolt Hole Diameter	1.375
Material	Flexible Graphite
Origin	Unrestricted Origin
Weight	1.63079202,

Dimensional Specifications

Dimensional SpecificationsGraflex 2661/1661 Full Face Gasket

Per ASME B16.21-2016
		Pipe Diameter
		1/2	3/4	1	1 1/4	1 1/2	2	2 1/2	3	3 1/2	4	5	6	8	10	12	14	16	18	20	24
Inside Diameter		0.84	1.06	1.31	1.66	1.91	2.38	2.88	3.50	4.00	4.50	5.56	6.62	8.62	10.75	12.75	14.00	16.00	18.00	20.00	24.00
Outside Diameter per Class	150#	3.50	3.88	4.25	4.63	5.00	6.00	7.00	7.50	8.50	9.00	10.00	11.00	13.50	16.00	19.00	21.00	23.50	25.00	27.50	32.00
	300#	3.75	4.62	4.88	5.25	6.12	6.50	7.50	8.25	9.00	10.00	11.00	12.50	15.00	17.50	20.50	23.00	25.50	28.00	30.50	36.00
	600#	3.75	4.62	4.88	5.25	6.12	6.50	7.50	8.25	9.00	10.75	13.00	14.00	16.50	20.00	22.00	23.75	27.00	29.25	32.00	37.00
Bolt Circle Diameter per Class	150#	2.38	2.75	3.13	3.50	3.88	4.75	5.50	6.00	7.00	7.50	8.50	9.50	11.75	14.25	17.00	18.75	21.25	22.75	25.00	29.50
	300#	2.62	3.25	3.50	3.88	4.50	5.00	5.88	6.62	7.25	7.88	9.25	10.62	13.00	15.25	17.75	20.25	22.50	24.75	27.00	32.00
	600#	2.62	3.25	3.50	3.88	4.50	5.00	5.88	6.62	7.25	8.50	10.50	11.50	13.75	17.00	19.25	20.75	23.75	25.75	28.50	33.00
Number of Bolt Holes per Class	150#	4	4	4	4	4	4	4	4	8	8	8	8	8	12	12	12	16	16	20	20
	300#	4	4	4	4	4	8	8	8	8	8	8	12	12	16	16	20	20	24	24	24
	600#	4	4	4	4	4	8	8	8	8	8	8	12	12	16	20	20	20	20	24	24
Bolt Hole Diameter per Class	150#	0.63	0.63	0.63	0.63	0.63	0.75	0.75	0.75	0.75	0.75	0.88	0.88	0.88	1.00	1.00	1.13	1.13	1.25	1.25	1.38
	300#	0.63	0.75	0.75	0.75	0.88	0.75	0.88	0.88	0.88	0.88	0.88	0.88	1.00	1.12	1.25	1.25	1.38	1.38	1.38	1.62
	600#	0.63	0.75	0.75	0.75	0.88	0.75	0.88	0.88	1.00	1.00	1.12	1.12	1.25	1.38	1.38	1.50	1.62	1.75	1.75	2.00

Per ASME B16.47-2017
Series A		Pipe Diameter
Series A		26	28	30	32	34	36	38	40	42	44	46	48	50	52	54	56	58	60
Inside Diameter		26.00	28.00	30.00	32.00	34.00	36.00	38.00	40.00	42.00	44.00	46.00	48.00	50.00	52.00	54.00	56.00	58.00	60.00
Outside Diameter per Class	150#	34.25	36.50	38.75	41.75	43.75	46.00	48.75	50.75	53.00	55.25	57.25	59.50	61.75	64.00	66.25	68.75	71.00	73.00
	300#	38.25	40.75	43.00	45.25	47.50	50.00	46.00	48.75	50.75	53.25	55.75	57.75	60.25	62.25	65.25	67.25	69.25	71.25
	600#	40.00	42.25	44.50	47.00	49.00	51.75	50.00	52.00	55.25	57.25	59.50	62.75	65.75	67.75	70.00	73.00	75.00	78.50
Bolt Circle Diameter per Class	150#	31.75	34.00	36.00	38.50	40.50	42.75	45.25	47.25	49.50	51.75	53.75	56.00	58.25	60.50	62.75	65.00	67.25	69.25
	300#	34.50	37.00	39.25	41.50	43.50	46.00	43.00	45.50	47.50	49.75	52.00	54.00	56.25	58.25	61.00	63.00	65.00	67.00
	600#	36.00	38.00	40.25	42.50	44.50	47.00	45.75	47.75	50.50	52.50	54.75	57.50	60.00	62.00	64.25	66.75	68.75	71.75
Number of Bolt Holes per Class	150#	24	28	28	28	32	32	32	36	36	40	40	44	44	44	44	48	48	52
	300#	28	28	28	28	28	32	32	32	32	32	28	32	32	32	28	28	32	32
	600#	28	28	28	28	28	28	28	32	28	32	32	32	28	32	32	32	32	28
Bolt Hole Diameter per Class	150#	1.38	1.38	1.38	1.63	1.63	1.63	1.63	1.63	1.63	1.63	1.63	1.63	1.88	1.88	1.88	1.88	1.88	1.88
	300#	1.75	1.75	1.88	2.00	2.00	2.12	1.62	1.75	1.75	1.88	2.00	2.00	2.12	2.12	2.38	2.38	2.38	2.38
	600#	2.00	2.12	2.12	2.38	2.38	2.62	2.38	2.38	2.62	2.62	2.62	2.88	3.12	3.12	3.12	3.38	3.38	3.62
Per ASME B16.47-2017
Series B		Pipe Diameter
Series B		26	28	30	32	34	36	38	40	42	44	46	48	50	52	54	56	58	60
Inside Diameter		26.00	28.00	30.00	32.00	34.00	36.00	38.00	40.00	42.00	44.00	46.00	48.00	50.00	52.00	54.00	56.00	58.00	60.00
Outside Diameter per Class	150#	30.94	32.94	34.94	37.06	39.56	41.62	44.25	46.25	48.25	50.25	52.81	54.81	56.81	58.81	61.00	63.00	65.94	67.94
	300#	34.12	36.25	39.00	41.50	43.62	46.12	48.12	50.12	52.50	54.50	57.50	59.50	61.50	63.50	65.88	69.50	71.94	73.94
	600#	35.00	37.50	40.25	42.75	45.75	47.75
Bolt Circle Diameter per Class	150#	29.31	31.31	33.31	35.44	37.69	39.75	42.12	44.12	46.12	48.12	50.56	52.56	54.56	56.56	58.75	60.75	63.44	65.44
	300#	31.62	33.75	36.25	38.50	40.62	42.88	44.88	46.88	49.00	51.00	53.75	55.75	57.75	59.75	62.12	65.00	67.44	69.44
	600#	31.75	34.00	36.50	38.75	41.50	43.50
Number of Bolt Holes per Class	150#	36	40	44	48	40	44	40	44	48	52	40	44	48	52	56	60	48	52
	300#	32	36	36	32	36	32	36	40	36	40	36	40	44	48	48	36	40	40
	600#	28	28	28	28	24	28
Bolt Hole Diameter per Class	150#	0.88	0.88	0.88	0.88	1.00	1.00	1.12	1.12	1.12	1.12	1.25	1.25	1.25	1.25	1.25	1.25	1.38	1.38
	300#	1.38	1.38	1.50	1.62	1.62	1.75	1.75	1.75	1.88	1.88	2.00	2.00	2.00	2.00	2.00	2.38	2.38	2.38
	600#	1.75	1.88	2.00	2.12	2.38	2.38

All dimensions are in inches.

Temperature	Continuous Service: -328F (-200C)
	Maximum Service:
	In air: 842F (450C)
	In steam: 1202F (650C)
	In reducing or inert media: 5432F (3000C)

Typical Physical Properties:
Density		62.4 lbs/ft^3
Compressibility - Tested under 5000 psi		35%
Recovery - Tested under 5000 psi		18%
Tensile Strength Across Grain		5000 psi
Creep Relaxation		12%
Compressive Strength		24,000psi
Carbon Content		98% minimum
Total Sulfur		≤750 ppm maximum
Leachable Chlorides		<30 ppm maximum

18 300# 1/8 GRAFLEX 2661/1661 WITH 316 FOIL INSERT FULL FACE GASKET

Technical Data

Product Specification

Governing Standards

Governing StandardsGraflex 2661/1661 Full Face Gasket

Service Limits

Service LimitsGraflex 2661/1661 Full Face Gasket

Physical Properties

Physical PropertiesGraflex 2661/1661 Full Face Gasket

Dimensional Specifications

Dimensional SpecificationsGraflex 2661/1661 Full Face Gasket

ASME B16.21	Covers types, sizes, materials, dimensions, tolerances, and markings for nonmetallic flat gaskets.
ASME B16.47	Covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60. Included are flanges with rating class designations 75, 150, 300, 400, 600, and 900 with requirements given in both SI (Metric) and U. S. Customary units, with diameter of bolts and flange bolt hole expressed in inch units.