Cap

Butt Welding Pipe Fittings

Size: 1/2"-80"/DN15-DN2000

Material: Carbon Steel or Stainless Steel

Standard: ASME/ANSI B16.9

Type: Seam Or Seamless

End: beveled end

Surface: Black Paint/Rust-proof Oil/Hot Dipped Galvanized

Wall Thickness: SCH10/10S, SCH20/20S, STD, SCH40/40S, XS, SCH80,SCH100, SCH120, SCH140, SCH160, XXS etc.

Connection: Welding

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Introduction

Butt weld cap is a kind of butt weld fittings.

Butt weld end caps are used for sealing the pipe in the end of pipe, we also call it butt welding end cap.

The key specifications for buttweld fittings are the ASME B16.9 (carbon and alloy fittings) and the MSS SP 43 (that integrates ASME B16.9 for stainless steel, duplex, and nickel alloy BW fittings).

Butt welding fittings can be used at high pressure piping connections.They are strong and have a long service life.Besides they are rather cheap to buy and deploy.

ASME B16.9 End Caps

butt-welding-cap

Dimensions of End Caps(ASME B16.9)

NPS	Outside	Length, E	Limiting W.T for	Length, E1
NPS	Diameter	Length, E	Length E	Length, 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	10.92	102
8"	219.1	102	12.70	127
10"	273.0	127	12.70	152
12"	323.8	152	12.70	178
14"	355.6	165	12.70	191
16"	406.4	178	12.70	203
18"	457	203	12.70	229
20"	508	229	12.70	254
22"	559	254	12.70	254
24"	610	267	12.70	305
26"	660	267	-	-
28"	711	267	-	-
30"	762	267	-	-
32"	813	267	-	-
34"	864	267	-	-
36"	914	267	-	-
38"	965	305	-	-
40"	1016	305	-	-
42"	1067	305	-	-
44"	1118	343	-	-
46"	1168	343	-	-
48"	1219	343	-	-