Butt Weld Steel Pipe Cap

A butt weld pipe cap is used to blind or isolate the pipeline, permanently or temporarily (for example during the execution of maintenance and reparation works). BW steel pipe cap, connecting methods is to use butt welding. So BW cap ends in beveled or plain.

1. Butt Weld Pipe Cap Specification

Product:	Butt Weld Cap, Steel Pipe Cap, Seamless Pipe Cap
Size:	1/8″ NB TO 48″ NB
	Wall Thickness: Sch.5S to Sch.XXS
Material:	carbon steel ASTM, A234, WPB / A420, WPL3 / A420, WPL6 / MSS-SP-75, WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70
	Stainless Steel ASTM, A403, WP304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L
	ALLOY STEEL ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
	Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500

2. Butt Weld Pipe Cap Standard

ASTM A403 – ASME SA403	Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9	Factory-Made Wrought Fittings Buttwelding
ASME B16.25	Buttwelding Ends
ASME B16.28	Wrought Steel Short Radius Elbows and Buttwelding Returns
MSS SP-43	Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications

3. Dimensions of Butt Weld Pipe Cap

NPS	OD	E	T	E1
1/2	21.3	25	4.57	25
3/4	26.7	25	3.81	25
1	33.4	38	4.57	38
1-1/4	42.2	38	4.83	38
1-1/2	48.3	38	5.08	38
2	60.3	38	5.59	44
2-1/2	73.0	38	7.11	51
3	88.9	51	7.62	64
3-1/2	101.6	64	8.13	76
4	114.3	64	8.64	76
5	141.3	76	9.65	89
6	168.3	89	10.9	102
8	219.1	102	12.7	127
10	273.0	127	12.7	152
12	323.8	152	12.7	178
NPS	OD	E	T	E1
14	355.6	165	12.7	191
16	406.4	178	12.7	203
18	457.0	203	12.7	229
20	508.0	229	12.7	254
22	559.0	254	12.7	254
24	610.0	267	12.7	305
26	660.0	267	NA	NA
28	711.0	267	NA	NA
30	762.0	267	NA	NA
32	813.0	267	NA	NA
34	864.0	267	NA	NA
36	914.0	267	NA	NA
38	965.0	305	NA	NA
40	1016.0	305	NA	NA
42	1067.0	305	NA	NA
NPS	OD	E	T	E1
44	1118.0	343	NA	NA
46	1168.0	343	NA	NA
48	1219.0	343	NA	NA

Butt Weld Pipe Caps Dimensions as per ASME B16.9. All dimensions are in mm.
The shape of these caps shall be ellipsoidal and shall conform to the shape requirements as given in the ASME Boiler and Pressure Vessel Code.

4. Butt Weld Pipe Cap Weight Chart

Pipe Cap Weight in KG, Schedule – Butt Weld Pipe Cap Weight

Nom Size inches	Sch STD Weight (kg)	SchXS Weight (kg)	Sch160 Weight (kg)	SchXXS Weight (kg)
1/2	.05	.05
3/4	.05	.05
1	.09	.09	0.2	0.45
1 1/4	.14	.18	0.2	0.68
1 1/2	.18	.23	0.3	1.1
2	.27	.36	0.6	1.4
2 1/2	.41	.45	0.8	1.8
3	.64	.91	1.3	2.7
3 1/2	1.0	1.3		3.4
4	1.4	1.6	2.7	4.1
5	2.0	2.6	4.5	5.1

5. Price list of SCHEDULE 40 Butt Weld Pipe Cap

Estan Pipe Fittings is one of the manufacturers and suppliers of Buttweld Fittings from China. Our prices for Pipe Cap Buttweld Fittings are very reasonable.

Please contact us for the latest price list and available stock information along with your requirements. We maintain a stock of all standard items and export them at the best price for Butt Weld Pipe Cap.

6. Pipe Cap Process

The manufacturing process of Pipe caps starts from steel plates that are cut and shaped with a cold forming procedure:

PIPE CAP MANUFACTURING PROCESS-COLD FORMING

7. Packing of Butt Weld Pipe Cap

Estan Pipe Fittings emphasizes the packaging to ensure that there is no damage during transit to the Butt Weld Pipe Caps. Pipe Caps are packed in export standard plywood pallets/ free fumigation wooden case. They are marked with Grade, Lot No, Size, Degree, etc. You can also contact us for customized marking.

Surface: Light Oiling, Black Painting, Galvanizing, PE /3PE Anti-corrosion Coating
Packing: Export Standard Plywood Pallets/ Free Fumigation Wooden Case.

8. Butt Weld Pipe Cap HS Code

73079390 CARBON STEEL PIPE FITTINGS-16 WELDING CAP SA234 GR.WP22 CL.1 SCH.40
73079390 CARBON STEEL FITTINGS, CAP, WELD 30 SCH 40 ASME SA234M WPB SEAMLESS
73079390 CARBON STEEL FITTINGS, CAP, WELD 18 SCH 100 ASME SA234M WPB SEAMLESS
73072900 END CAP AS PER ANSI B-16.9 SIZE 10 SCHEDULE 80S END CONNECTION BUTT WELD MATLS STAINLESS STEEL ASTM A-403 GR WP 904L MTC