Seamless concentric reducer

Seamless concentric reducer introduction

Seamless concentric reduceris normally made from seamless pipe. It is usually processed with reducing or expanding hole diameter, or stamping for some specifications.

Seamless concentric reducer specification

Size: DN 20 X 15 - 1200 X 1000
Wall thickness: Sch. 5s - 160
Standard: GB GB/T12459-2005, American Standard (ANIS), Japanese Standard (JIS), British Standard (BS), German standard (DIN), Italian standard (UNI), etc.
Material: Carbon steel: 10 #, 20 #, A3, Q235A, 20G, 16Mn, ASTM A234, ASTM A105, etc.
Stainless steel: ASTMA403, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 304, 304L, 316,316 L, etc.
Alloy: 16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22,
Connection: clamp (fast) type, welding type, screw type (live).

nominal diameter		approximate weight kg						approximate volume m3
DN	NPS	SCH10S	SCH20	STD	SCH40	XS	SCH80	approximate volume m3
20	3/4	0.05	-	0.08	0.08	0.10	0.10	0.027*10-3
25	1	0.10	-	0.17	0.17	0.20	0.20	0.057*10-3
32	1-1/4	0.13	-	0.21	0.21	0.25	0.25	0.091*10-3
40	1-1/2	0.20	-	0.29	0.29	0.35	0.35	0.149*10-3
50	2	0.28	-	0.42	0.42	0.58	0.58	0.276*10-3
65	2-1/2	0.45	-	0.80	0.80	1.03	1.03	0.474*10-3
80	3	0.55	-	1.05	1.05	1.42	1.42	0.703*10-3
90	3-1/2	0.74	-	1.36	1.36	1.89	1.89	1.053*10-3
100	4	0.84	-	1.63	1.63	2.27	2.27	1.333*10-3
125	5	1.38	-	2.77	2.77	3.93	3.93	2.536*10-3
150	6	1.85	-	3.96	3.96	5.95	5.95	3.965*10-3
200	8	2.80	-	6.31	6.31	9.26	9.26	7.297*10-3
250	10	4.60	7.85	10.7	10.7	14.5	17.5	0.013
300	12	7.00	11.2	15.8	16.3	20.9	25.1	0.021
350	14	14.0	25.6	28.8	32.1	37.1	56.5	0.042
400	16	17.5	30.5	38.5	48.8	48.8	79.0	0.060
450	18	21.5	35.2	44.5	64.3	58.5	102	0.080
500	20	36.0	62.7	62.7	98.5	80.4	165	0.131
550	22	38.0	72.6	72.6	-	93.8	181	0.159
600	24	47.5	97.1	79.1	142	101	226	0.189
650	26	-	130	99.9	-	130	-	0.266
700	28	-	142	110	-	142	-	0.308
750	30	85.0	152	119	-	152	-	0.354
800	32	-	151	125	208	151	-	0.402
850	34	-	171	132	231	171	-	0.456
900	36	-	180	140	262	180	-	0.510
950	38	-	-	148	-	194	-	0.568
1000	40	-	-	156	-	203	-	0.630
1050	42	-	-	178	-	235	-	0.695
1100	44	-	-	189	-	244	-	0.763
1150	46	-	-	199	-	257	-	0.970
1200	48	-	-	210	-	269	-	1.056
1300	52	-	-	223	-	-	-	1.241
1400	56	-	-	241	-	-	-	1.433
1500	60	-	-	258	-	-	-	1.651
Note: nominal diameter refers to larger end of the reducer