Feb 23, 2018

150 Series Flanges

Pipe Diameter	# of Studs	Stud Diameter	Stud Length	Nut Size
1″	4	1/2″	2-1/2″	7/8″
2″	4	5/8″	3-1/4″	1-1/16″
3″	4	5/8″	3-1/2″	1-1/16″
4″	8	5/8″	3-1/2″	1-1/16″
6″	8	3/4″	4″	1-1/4″
8″	8	3/4″	4-1/4″	1-1/4″
10″	12	7/8″	4-1/2″	1-7/16″
12″	12	7/8″	4-3/4″	1-7/16″
14″	12	1″	5-1/4″	1-5/8″
16″	16	1″	5-1/4″	1-5/8″
18″	16	1-1/8″	5-3/4″	1-13/16″
20″	20	1-1/8″	6-1/4″	1-13/16″
24″	20	1-1/4″	6-3/4″	2″
26″	24	1-1/4″	8″	2″
28″	28	1-1/4″	8-1/4″	2″
30″	28	1-1/4″	8-1/2″	2″
32″	28	1-1/2″	9-1/2″	2-3/8″
34″	32	1-1/2″	9-3/4″	2-3/8″
36″	32	1-1/2″	10-1/4″	2-3/8″
38″	32	1-1/2″	10-1/4″	2-3/8″
40″	36	1-1/2″	10-1/4″	2-3/8″
42″	36	1-1/2″	11″	2-3/8″
44″	40	1-1/2″	11-1/4″	2-3/8″
46″	40	1-1/2″	11-1/4″	2-3/8″
48″	44	1-1/2″	11-3/4″	2-3/8″
50″	44	1-3/4″	12-1/2″	2-3/4″
52″	44	1-3/4″	12-3/4″	2-3/4″
54″	44	1-3/4″	13-1/4″	2-3/4″
56″	48	1-3/4″	13-1/2″	2-3/4″

by PipeAdmin

Feb 16, 2018

Pipe Threads – BSPT 55°

Whitworth Pipe Thread for pipes and fittings. Parallel female thread and tapered male thread (taper 1 : 16). An appropriate sealing compound can be used in the thread to ensure a leak-proof joint. The flank angle is 55°.

Male Thread Dia.	Pitch mm	TPI	Tap/Drill mm
R 1/16”	6.561	28	0.907
R 1/8”	8.566	28	0.907
R 1/4”	11.445	19	1.337
R 3/8”	14.95	19	1.337
R 1/2”	18.631	14	1.814
R 3/4”	24.117	14	1.814
R 1”	30.291	11	2.309
R 1 1/4”	38.952	11	2.309
R 1 1/2”	44.845	11	2.309
R 2”	56.656	11	2.309
R 2 1/2”	72.226	11	2.309
R 3”	84.926	11	2.309
R 4”	110.072	11	2.309
R 5”	135.472	11	2.309
R 6”	160.872	11	2.309

Male Thread Dia.	Female Thread Dia.	Maj. Dia. mm	Min. Dia. mm
R 1/16”	Rp 1/16”	3	7.723
R 1/8”	Rp 1/8”	6	9.728
R 1/4”	Rp 1/4”	8	13.157
R 3/8”	Rp 3/8”	10	16.662
R 1/2”	Rp 1/2”	15	20.955
R 3/4”	Rp 3/4”	20	26.441
R 1”	Rp 1”	25	33.249
R 1 1/4”	Rp 1 1/4”	32	41.91
R 1 1/2”	Rp 1 1/2”	40	47.803
R 2”	Rp 2”	50	59.614
R 2 1/2”	Rp 2 1/2”	65	75.184
R 3”	Rp 3”	80	87.884
R 4”	Rp 4”	100	113.03
R 5”	Rp 5”	125	138.43
R 6”	Rp 6”	150	163.83

by PipeAdmin

Feb 16, 2018

Pipe Threads – BSB 55°

BSB British Standard Brass Thread. Used brass tubing. BSB has a 26 TPI pitch through the whole range. The flank angle is 55°.

Nominal Dia.	TPI	Pitch mm	Tap/Drill mm
G 1/16”	6.561	28	0.907
G 1/8”	8.565	28	0.907
G 1/4”	11.445	19	1.337
G 3/8”	14.95	19	1.337
G 1/2”	18.633	14	1.814
G 3/4”	24.12	14	1.814
G 1”	30.292	11	2.309
G 1 1/4”	38.953	11	2.309
G 1 1/2”	44.846	11	2.309
G 2”	56.657	11	2.309
G 2 1/2”	72.227	11	2.309
G 3”	84.927	11	2.309
G 4”	110.073	11	2.309
G 5”	135.473	11	2.309
G 6”	160.873	11	2.309

Nominal Dia.	Diameter inch	Diameter mm	—
G 1/16”	0.063	7.722	—
G 1/8”	0.125	9.728	—
G 1/4”	0.25	13.157	—
G 3/8”	0.375	16.662	—
G 1/2”	0.5	20.955	—
G 3/4”	0.75	26.441	—
G 1”	1	33.249	—
G 1 1/4”	1.25	41.91	—
G 1 1/2”	1.5	47.803	—
G 2”	2	59.614	—
G 2 1/2”	2.5	75.184	—
G 3”	3	87.884	—
G 4”	4	113.03	—
G 5”	5	138.43	—
G 6”	6	163.83	—

by PipeAdmin

Feb 16, 2018

Pipe Threads – BSPP 55°

Whitworth Parallel Pipe Thread DIN ISO 228 (DIN 259) BSPP (British Standard Pipe Parallel)

Male Thread Dia.	Pitch mm	TPI	Tap/Drill mm
G 1/16”	6.561	28	0.907
G 1/8”	8.565	28	0.907
G 1/4”	11.445	19	1.337
G 3/8”	14.95	19	1.337
G 1/2”	18.633	14	1.814
G 3/4”	24.12	14	1.814
G 1”	30.292	11	2.309
G 1 1/4”	38.953	11	2.309
G 1 1/2”	44.846	11	2.309
G 2”	56.657	11	2.309
G 2 1/2”	72.227	11	2.309
G 3”	84.927	11	2.309
G 4”	110.073	11	2.309
G 5”	135.473	11	2.309
G 6”	160.873	11	2.309

Male Thread Dia.	Maj. Dia. inch	Maj. Dia. mm	Min. Dia. mm
G 1/16”	0.063	7.722	6.837
G 1/8”	0.125	9.728	8.841
G 1/4”	0.25	13.157	11.863
G 3/8”	0.375	16.662	15.389
G 1/2”	0.5	20.955	19.2
G 3/4”	0.75	26.441	24.772
G 1”	1	33.249	31.014
G 1 1/4”	1.25	41.91	39.819
G 1 1/2”	1.5	47.803	45.712
G 2”	2	59.614	57.722
G 2 1/2”	2.5	75.184	73.391
G 3”	3	87.884	86.289
G 4”	4	113.03	111.733
G 5”	5	138.43	137.332
G 6”	6	163.83	162.732