THREADED FLANGE

Model NO.: TF

Quantity:

Product Description

Threaded Flanges

Also known as a screwed flange, this style has a thread inside the flange bore which fits with the matching male thread on the pipe or fitting. The threaded connection means you can avoid welding in many use cases. Simply match the threading to the pipes you wish to connect.

Size Range | 1/2″ – 36″ NPS (Larger sizes available upon request)
Classes | ASME/ANSI 150, 300, 600, 900, 1500, 2500
Stainless Steel Grades | 304, 304L, 316, 316L, 316L, 317L, 321 , 347 *
Special Alloys | 2205, 254SMo, Monel, Inconel *
Chrome Moly | P5, P9, P11, P22, P91 *
Standards | ASTM / ASME / ANSI

THREADED FLANGE DIMENSIONS IN INCHES

THREADED CLASS 150

Threaded flange dimensions class 150 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	3.50″	2.38″	1.38″	.063″	1.19″	.62″	.38″	.56″	.62″	4
3/4″	1.14″	3.88″	2.75″	1.69″	.063″	1.50″	.62″	.44″	.56″	.62″	4
1″	1.41″	4.25″	3.12″	2.00″	.063″	1.94″	.69″	.50″	.63″	.62″	4
1-1/4″	1.75″	4.62″	3.50″	2.50″	.063″	2.31″	.81″	.56″	.75″	.62″	4
1-1/2″	1.99″	5.00″	3.88″	2.88″	.063″	2.56″	.88″	.62″	.82″	.62″	4
2″	2.50″	6.00″	4.75″	3.62″	.063″	3.06″	1.00″	.69″	.94″	.75″	4
2-1/2″	3.00″	7.00″	5.50″	4.12″	.063″	3.56″	1.12″	.82″	1.06″	.75″	4
3″	3.63″	7.50″	6.00″	5.00″	.063″	4.25″	1.19″	.88″	1.13″	.75″	4
3-1/2″	4.13″	8.50″	7.00″	5.50″	.063″	4.81″	1.25″	.88″	1.19″	.75″	8
4″	4.63″	9.00″	7.50″	6.19″	.063″	5.31″	1.31″	.88″	1.25″	.75″	8
5″	5.69″	10.00″	8.50″	7.31″	.063″	6.44″	1.44″	.88″	1.38″	.88″	8
6″	6.75″	11.00″	9.50″	8.50″	.063″	7.56″	1.56″	.94″	1.50″	.88″	8
8″	8.75″	13.50″	11.75″	10.62″	.063″	9.69″	1.75″	1.06″	1.69″	.88″	8
10″	10.88″	16.00″	14.25″	12.75″	.063″	12.00″	1.94″	1.13″	1.88″	1.00″	12
12″	12.94″	19.00″	17.00″	15.00″	.063″	14.38″	2.19″	1.19″	2.13″	1.00″	12
14″	14.19″	21.00″	18.75″	16.25″	.063″	15.75″	2.25″	1.32″	2.19″	1.12″	12
16″	16.19″	23.50″	21.25″	18.50″	.063″	18.00″	2.50″	1.38″	2.44″	1.12″	16
18″	18.19″	25.00″	22.75″	21.00″	.063″	19.88″	2.69″	1.50″	2.63″	1.25″	16
20″	20.19″	27.50″	25.00″	23.00″	.063″	22.00″	2.88″	1.63″	2.83″	1.25″	20
22″	22.19″	29.50″	27.25″	25.25″	.063″	24.25″	3.13″	1.75″	3.07″	1.38″	20
24″	24.19″	32.00″	29.50″	27.25″	.063″	26.12″	3.25″	1.82″	3.19″	1.38″	20

THREADED CLASS 300

Threaded flange dimensions class 300 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	3.75″	2.62″	1.38″	.063″	1.50″	0.88″	0.50″	0.82″	0.62″	4
3/4″	1.14″	4.62″	3.25″	1.69″	.063″	1.88″	1.00″	.056″	0.94″	0.75″	4
1″	1.41″	4.88″	3.50″	2.00″	.063″	2.12″	1.06″	0.63″	1.00″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	2.50″	.063″	2.50″	1.06″	0.69″	1.00″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	2.88″	.063″	2.75″	1.19″	0.75″	1.13″	0.88″	4
2″	2.50″	6.50″	5.00″	3.62″	.063″	3.31″	1.31″	0.82″	1.25″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	4.12″	.063″	3.94″	1.50″	0.94″	1.44″	0.88″	8
3″	3.63″	8.25″	6.62″	5.00″	.063″	4.62″	1.69″	1.06″	1.63″	0.88″	8
3-1/2″	4.13″	9.00″	7.25″	5.50″	.063″	5.25″	1.75″	1.13″	1.69″	0.88″	8
4″	4.63″	10.00″	7.88″	6.19″	.063″	5.75″	1.88″	1.19″	1.82″	0.88″	8
5″	5.69″	11.00″	9.25″	7.31″	.063″	7.00″	2.00″	1.32″	1.94″	0.88″	8
6″	6.75″	12.50″	10.62″	8.50″	.063″	8.12″	2.06″	1.38″	2.00″	0.88″	12
8″	8.75″	15.00″	13.00″	10.62″	.063″	10.25″	2.44″	1.56″	2.38″	1.00″	12
10″	10.88″	17.50″	15.25″	12.75″	.063″	12.62″	2.62″	1.82″	2.56″	1.12″	16
12″	12.94″	20.50″	17.75″	15.00″	.063″	14.75″	2.88″	1.94″	2.82″	1.25″	16
14″	14.19″	23.00″	20.25″	16.25″	.063″	16.75″	3.00″	2.06″	2.94″	1.25″	20
16″	16.19″	25.50″	22.50″	18.50″	.063″	19.00″	3.25″	2.19″	3.19″	1.38″	20
18″	18.19″	28.00″	24.75″	21.00″	.063″	21.00″	3.50″	2.32″	3.44″	1.38″	24
20″	20.19″	30.50″	27.00″	23.00″	.063″	23.12″	3.75″	2.44″	3.69″	1.38″	24
22″	22.19″	33.00″	29.25″	25.25″	.063″	25.25″	4.00″	2.57″	3.94″	1.63″	24
24″	24.19″	36.00″	32.00″	27.25″	.063″	27.62″	4.19″	2.69″	4.13″	1.62″	24

THREADED CLASS 400

Threaded flange dimensions class 400 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	3.75″	2.62″	0.12″	.250″	1.50″	1.13″	0.56″	0.88″	0.62″	4
3/4″	1.14″	4.62″	3.25″	0.12″	.250″	1.88″	1.25″	0.62″	1.00″	0.75″	4
1″	1.41″	4.88″	3.50″	0.12″	.250″	2.12″	1.31″	0.69″	1.06″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	0.19″	.250″	2.50″	1.37″	0.81″	1.12″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	0.25″	.250″	2.75″	1.50″	0.88″	1.25″	0.88″	4
2″	2.50″	6.50″	5.00″	0.31″	.250″	3.31″	1.69″	1.00″	1.44″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	0.31″	.250″	3.94″	1.87″	1.12″	1.62″	0.88″	8
3″	3.63″	8.25″	6.62″	0.38″	.250″	4.62″	2.06″	1.25″	1.81″	0.88″	8
3-1/2″	4.13″	9.00″	7.25″	0.38″	.250″	5.25″	2.19″	1.38″	1.94″	1.00″	8
4″	4.63″	10.00″	7.88″	0.44″	.250″	5.75″	2.25″	1.38″	2.00″	1.00″	8
5″	5.69″	11.00″	9.25″	0.44″	.250″	7.00″	2.37″	1.50″	2.12″	1.00″	8
6″	6.75″	12.50″	10.62″	0.50″	.250″	8.12″	2.50″	1.62″	2.25″	1.00″	12
8″	8.75″	15.00″	13.00″	0.50″	.250″	10.25″	2.94″	1.88″	2.69″	1.12″	12
10″	10.88″	17.50″	15.25″	0.50″	.250″	12.62″	3.13″	2.12″	2.88″	1.25″	16
12″	12.94″	20.50″	17.75″	0.50″	.250″	14.75″	3.37″	2.25″	3.12″	1.38″	16
14″	14.19″	23.00″	20.25″	0.50″	.250″	16.75″	3.56″	2.38″	3.31″	1.38″	20
16″	16.19″	25.50″	22.50″	0.50″	.250″	19.00″	3.94″	2.50″	3.69″	1.50″	20
18″	18.19″	28.00″	24.75″	0.50″	.250″	21.00″	4.13″	2.62″	3.88″	1.50″	24
20″	20.19″	30.50″	27.00″	0.50″	.250″	23.12″	4.25″	2.75″	4.00″	1.62″	24
22″	22.19″	33.00″	29.25″	0.50″	.250″	25.25″	4.50″	2.88″	4.25″	1.75″	24
24″	24.19″	36.00″	32.00″	0.50″	.250″	27.62″	4.75″	3.00″	4.50″	1.88″	24

THREADED CLASS 600

Threaded flange dimensions class 600 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	3.75″	2.62″	1.38″	.250″	1.50″	1.13″	0.56″	0.88″	0.62″	4
3/4″	1.14″	4.62″	3.25″	1.69″	.250″	1.88″	1.25″	0.62″	1.00″	0.75″	4
1″	1.41″	4.88″	3.50″	2.00″	.250″	2.12″	1.31″	0.69″	1.06″	0.75″	4
1-1/4″	1.75″	5.25″	3.88″	2.50″	.250″	2.50″	1.37″	0.81″	1.12″	0.75″	4
1-1/2″	1.99″	6.12″	4.50″	2.88″	.250″	2.75″	1.50″	0.88″	1.25″	0.88″	4
2″	2.50″	6.50″	5.00″	3.62″	.250″	3.31″	1.69″	1.00″	1.44″	0.75″	8
2-1/2″	3.00″	7.50″	5.88″	4.12″	.250″	3.94″	1.87″	1.12″	1.62″	0.88″	8

THREADED CLASS 900

Threaded flange dimensions class 900 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	4.75″	3.25″	1.38″	.250″	1.50″	1.50″	0.88″	1.25″	0.88″	4
3/4″	1.14″	5.13″	3.50″	1.69″	.250″	1.75″	1.63″	1.00″	1.38″	0.88″	4
1″	1.41″	5.88″	4.00″	2.00″	.250″	2.06″	1.88″	1.13″	1.63″	1.00″	4
1-1/4″	1.75″	6.25″	4.38″	2.50″	.250″	2.50″	1.88″	1.13″	1.63″	1.00″	4
1-1/2″	1.99″	7.00″	4.88″	2.88″	.250″	2.75″	2.00″	1.25″	1.75″	1.13″	4
2″	2.50″	8.50″	6.50″	3.63″	.250″	4.13″	2.50″	1.50″	2.25″	1.00″	8
2-1/2″	3.00″	9.63″	7.50″	4.13″	.250″	4.88″	2.75″	1.63″	2.50″	1.13″	8
3″	3.63″	9.50″	7.50″	5.00″	.250″	5.00″	2.38″	1.50″	2.13″	1.00″	8
4″	4.63″	11.50″	9.25″	6.19″	.250″	6.25″	3.00″	1.75″	2.75″	1.25″	8
5″	5.69″	13.75″	11.00″	7.31″	.250″	7.50″	3.38″	3.00″	3.13″	1.38″	8
6″	6.75″	15.00″	12.50″	8.50″	.250″	9.25″	3.63″	2.19″	3.38″	1.25″	12
8″	8.75″	18.50″	15.50″	10.63″	.250″	11.75″	4.25″	2.50″	4.00″	1.50″	12
10″	10.88″	21.50″	18.50″	12.75″	.250″	14.50″	4.50″	2.75″	4.25″	1.50″	16
12″	12.94″	24.00″	21.00″	15.00″	.250″	16.50″	4.88″	3.13″	4.63″	1.50″	20
14″	14.19″	25.25″	22.00″	16.25″	.250″	17.75″	5.38″	3.38″	5.13″	1.63″	20
16″	16.19″	27.75″	24.25″	18.50″	.250″	20.00″	5.50″	3.50″	5.25″	1.75″	20
18″	18.19″	31.00″	27.00″	21.00″	.250″	22.25″	6.25″	4.00″	6.00″	2.00″	20
20″	20.19″	33.75″	29.50″	23.00″	.250″	24.50″	6.50″	4.25″	6.25″	2.13″	20
24″	24.19″	41.00″	35.50″	27.25″	.250″	29.50″	8.25″	5.50″	8.00″	2.63″	20

THREADED CLASS 1500

Threaded flange dimensions class 1500 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	4.75″	3.25″	1.38″	.250″	1.50″	1.50″	0.88″	1.25″	0.88″	4
3/4″	1.14″	5.13″	3.50″	1.69″	.250″	1.75″	1.63″	1.00″	1.38″	0.88″	4
1″	1.41″	5.88″	4.00″	2.00″	.250″	2.06″	1.88″	1.13″	1.63″	1.00″	4
1-1/4″	1.75″	6.25″	4.38″	2.50″	.250″	2.50″	1.88″	1.13″	1.63″	1.00″	4
1-1/2″	1.99″	7.00″	4.88″	2.88″	.250″	2.75″	2.00″	1.25″	1.75″	1.13″	4
2″	2.50″	8.50″	6.50″	3.63″	.250″	4.13″	2.50″	1.50″	2.25″	1.00″	8
2-1/2″	3.00″	9.63″	7.50″	4.13″	.250″	4.88″	2.75″	1.63″	2.50″	1.13″	8

THREADED CLASS 2500

Threaded flange dimensions class 2500 in inches (ASME B16.5)

FLANGE NPS	Inside Diameter	Outside Diameter	Bolt Circle (BC)	Raised Face (R)	Raised Face (RF)	H	Raised Face Thickness (T)	T1	Flat Face Thickness (T2)	Bolt Hole (B)	No. of Bolt Holes
1/2″	0.93″	5.25″	3.50″	1.38″	.250″	1.69″	1.81″	1.19″	1.56″	0.88″	4
3/4″	1.14″	5.50″	3.75″	1.69″	.250″	2.00″	1.94″	1.25″	1.69″	0.88″	4
1″	1.41″	6.25″	4.25″	2.00″	.250″	2.25″	2.13″	1.38″	1.88″	1.00″	4
1-1/4″	1.75″	7.25″	5.13″	2.50″	.250″	2.88″	2.31″	1.50″	2.06″	1.13″	4
1-1/2″	1.99″	8.00″	5.75″	2.88″	.250″	3.13″	2.63″	1.75″	2.38″	1.25″	4
2″	2.50″	9.25″	6.75″	3.63″	.250″	3.75″	3.00″	2.00″	2.75″	1.13″	8
2-1/2″	3.00″	10.50″	7.75″	4.13″	.250″	4.50″	3.38″	2.25″	3.13″	1.25″	8

THREADED FLANGE DIMENSIONS IN MILLIMETERS

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