Pipe Cap

Size: 1/2"-48"
Wall thickness: SCH5S-SCHXXS
Material: Special Alloy, Super Duplex Stainless Steel, Stainless Steel, Carbon Steel, Titanium
Standards: ASME B16.9, ASME B16.28, MSS SP43, MSS SP75

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PRODUCT DETAIL
Material

Size: 1/2″-48″
Wall thickness: SCH5S-SCHXXS
Material: Special Alloy, Super Duplex Stainless Steel, Stainless Steel, Carbon Steel, Titanium
Standards: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43

Pipe Cap is directly welded to die at the end of the pipeline; at the end of the pipeline can also welding flange, then with a blind flange to death, when necessary can open the blind flange, pipeline check inside.

Pipe Cap Manufacturing Process

Cold forming is the most used manufacturing process for seamless pipe cap.

Cold Forming

20190829133730 76539 - Pipe Cap

Dimensions Butt Weld Caps NPS 1/2 – 48 ASME B16.9

NPS	O.D. D	LENGTH H	LENGTH H1
1/2	21.3	25	25
3/4	26.7	25	25
1	33.4	38	38
1.1/4	42.2	38	38
1.1/2	48.3	38	38
2	60.3	38	44
2.1/2	73	38	51
3	88.9	51	64
3.1/2	101.6	64	76
4	114.3	64	76
5	141.3	76	89
6	168.3	89	102
8	219.1	102	127
10	273	127	152
12	323.8	152	178
14	355.6	165	191
16	406.4	178	203

NPS	O.D. D	LENGTH H	LENGTH H1
18	457	203	229
20	508	229	254
22	559	254	254
24	610	267	305
26	660	267
28	711	267
30	762	267
32	813	267
34	864	237
36	914	267
38	965	305
40	1016	305
42	1067	305
44	1118	343
46	1168	343
48	1219	343
NPS	O.D. D	LENGTH H	LENGTH H1

General notes:

Dimensions are in millimeters unless otherwise indicated.
Wall thickness (T) must be specified by customer.
The shape shall be ellipsoidal and shall conform to the requirements given in the ASME Boiler and Pressure Vessel Code.
Length (H) applies for thickness not exceeding that given in column “Wall Thickness” for Length, H.
Length (H1) applies for thickness greater than that given in column “Wall Thickness” for NPS 24 and smaller. For NPS 26 and larger, length H1 shall be by agreement between the manufacturerand purchaser.

DIMENSIONAL TOLERANCES OF END CAPS ASME B16.9

Nominal Pipe Size	1/2 to 2.1/2	3 to 3.1/2	4	5 to 8
Outside Diameter at Bevel (D)	+ 1.6 – 0.8	1.6	1.6	+ 2.4 – 1.6
Inside Diameter at End	0.8	1.6	1.6	1.6
Overall Length (H)	3	3	3	6
Nominal Pipe Size	10 to 18	20 to 24	26 to 30	32 to 48
Outside Diameter at Bevel (D)	+ 4 – 3.2	+ 6.4 – 4.8	+ 6.4 – 4.8	+ 6.4 – 4.8
Inside Diameter at End	3.2	4.8	+ 6.4 – 4.8	+ 6.4 – 4.8
Overall Length (H)	6	6	10	10
Wall Thickness (t)	Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.

Note:
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.

Weights of Buttweld Caps

SCHEDULE STD XS 160 XXS

NPS	STD	XS	SCH 160	XXS
1	0.09	0.14	0.18	0.23
1.1/4	0.14	0.18	0.23	0.34
1.1/2	0.18	0.23	0.27	0.41
2	0.27	0.34	0.57	0.68
2.1/2	0.41	0.45	0.79	1.13
3	0.68	0.79	1.32	1.81
3.1/2	0.91	1.13	–	2.72
4	1.13	1.36	2.68	3.4
5	2.04	2.49	4.54	5.44
6	2.95	4.08	6.8	8.16
8	5.44	7.26	14.06	13.61
10	9.07	11.34	25.85	–
12	13.61	16.33	43.09	–
14	16.33	20.41	–	–
16	18.14	24.49	–	–
18	24.49	32.66	–	–
20	34.02	39.01	–	–
22	42.64	56.7	–	–
24	43.54	58.97	–	–
26	53.98	72.12	–	–
30	78.02	103.87	–	–
NPS	STD	XS	SCH 160	XXS

Note:

All weights are in pounds and kilograms and approximated or estimated.

How to get high quality pipe cap?

Pipe cap acts as protective device and are designed to protect pipe ends of various shapes. The main purpose of using pipe caps is to waterproof the connections. They are also used to close the the ends of hydraulic or pneumatic pipes and tubes. They are used in the plumbing apparatus of domestic, commercial and industrial water supply lines, machinery and processing equipment etc. They are also fitted on water pump lines with the sole purpose of removing air blocks. Pipe caps are highly demanded as an important category of pipe fittings. If a solvent-weld cap is used to provide for a future connection point, several inches of pipe must be left before the cap; when the cap is cut off for the future connection, enough pipe must remain to allow a new fitting to be glued onto it.