STEAM FLOW RATE IN PIPELINES

The below table will be helpful while sizing steam lines for process plants and other steam utility areas

Pr.	Velocity	15	20	25	32	40	50	65
Bar	M/s	mm	mm	mm	mm	mm	mm	mm
1	15	8	17	29	43	65	112	182
	25	12	26	48	72	100	193	300
	40	19	39	71	112	172	311	465
2	15	12	25	45	70	100	182	280
	25	19	43	70	112	162	295	428
	40	30	64	115	178	275	475	745
3	15	16	37	60	93	127	245	385
	25	26	56	100	152	225	425	632
	40	41	87	157	250	357	595	1,025
4	15	19	42	70	108	156	281	432
	25	30	63	115	180	270	450	742
	40	49	116	197	295	456	796	1,247
5	15	22	49	87	128	187	352	526
	25	36	81	135	211	308	548	885
	40	59	131	225	338	495	855	1,350
6	15	26	59	105	153	225	425	632
	25	43	97	162	253	370	658	1,065
	40	71	157	270	405	595	1,025	1,620
7	15	29	63	110	165	260	445	705
	25	49	114	119	288	450	785	1,205
	40	76	177	303	455	690	1,210	1,865
8	15	32	70	126	190	285	475	800
	25	54	122	205	320	465	810	1,260
	40	84	192	327	510	730	1,370	2,065
10	15	41	95	155	250	372	626	1,012
	25	66	145	257	405	562	990	1,530
	40	104	216	408	615	910	1,635	2,545
14	15	50	121	205	310	465	810	1,270
	25	85	195	331	520	740	1,375	2,080
	40	126	305	555	825	2,120	2,195	3,425

Pr.	Velocity	80	100	125	150	200	250	300
Bar	M/s	mm	mm	mm	mm	mm	mm	mm
1	15	260	470	694	1,020	1,864	2,814	4,045
	25	445	730	1,160	1,660	3,099	4,869	6,751
	40	640	1,150	1,800	2,500	4,815	7,333	10,370
2	15	410	715	1,125	1,580	2,814	4,545	6,277
	25	656	1,215	1,755	2,520	4,815	7,424	10,575
	40	1,010	1,895	2,925	4,175	7,678	11,997	16,796
3	15	535	925	1,505	2,040	3,983	6,217	8,743
	25	910	1,580	2,480	3,440	6,779	10,269	14,316
	40	1,460	2,540	4,050	5,940	10,476	16,470	22,950
4	15	635	1,166	1,685	2,460	4,618	7,121	10,358
	25	1,080	1,980	2,925	4,225	7,866	12,225	17,304
	40	1,825	3,120	4,940	7,050	12,661	19,663	27,816
5	15	770	1,295	2,105	3,825	5,548	8,586	11,947
	25	1,265	2,110	3,540	5,150	8,865	14,268	20,051
	40	1,890	3,510	5,400	7,870	13,761	23,205	32,244
6	15	925	1,555	2,525	3,400	6,654	10,297	14,328
	25	1,520	2,530	4,250	6,175	10,629	17,108	24,042
	40	2,270	4,210	6,475	9,445	16,515	27,849	38,697
7	15	952	1,815	2,765	3,990	7,390	12,015	16,096
	25	1,750	3,025	4,815	6,900	12,288	19,377	27,080
	40	2,520	4,585	7,560	10,880	19,141	30,978	43,470
8	15	1,125	1,990	3,025	4,540	8,042	12,625	17,728
	25	1,870	3,240	5,220	7,120	13,140	21,600	33,210
	40	3,120	5,135	8,395	12,470	21,247	33,669	46,858
10	15	1,465	2,495	3,995	5,860	9,994	16,172	22,713
	25	2,205	2,835	6,295	8,995	15,966	25,860	35,890
	40	3,600	6,230	9,880	14,390	21,247	41,011	57,560
14	15	1,870	3,220	5,215	7,390	12,921	20,538	29,016
	25	3,120	5,200	8,500	12,560	21,720	34,139	47,128
	40	4,735	8,510	13,050	18,630	35,548	54,883	76,534