Reccomended Steam Pipe Capacities @ Common Sense Velocities

SteamValve.Com

PSI	Temp	1/4	3/8	1/2	3/4	1	1-1/4	1-1/2	2	2-1/2	3	4	5	6	8	10	12
		7,062	7,094	7,125	7,187	7,250	7,312	7,375	7,500	7,625	7,750	8,000	8,250	8,500	9,000	9,500	10,000
600	489	408	752	1,203	2,127	3,479	6,071	8,339	13,970	20,270	31,820	56,560	91,660	136,400	250,000	416,000	621,600
550	480	374	689	1,102	1,949	3,186	5,561	7,638	12,800	18,570	29,150	51,800	83,960	124,900	229,000	381,000	569,400
500	470	340	627	1,002	1,773	2,899	5,059	6,949	11,640	16,890	26,510	47,130	76,380	113,600	208,400	346,700	518,000
450	460	306	565	904	1,599	2,614	4,562	6,266	10,500	15,230	23,910	42,500	68,870	102,500	187,900	312,600	467,100
400	448	273	504	806	1,426	2,332	4,069	5,589	9,366	13,590	21,330	37,910	61,440	91,410	167,600	278,800	416,600
350	436	241	444	709	1,255	2,052	3,581	4,919	8,242	11,960	18,770	33,360	54,060	80,440	147,500	245,400	366,600
300	422	208	384	613	1,085	1,774	3,096	4,253	7,127	10,340	16,230	28,840	46,750	69,550	127,500	212,000	317,000
250	406	176	324	518	916	1,498	2,615	3,591	6,018	8,731	13,700	24,360	39,470	58,730	107,700	179,200	267,700
200	388	143	264	423	748	1,223	2,135	2,932	4,913	7,128	11,190	19,880	32,230	47,950	87,910	146,300	218,500
175	378	127	235	375	664	1,086	1,895	2,603	4,361	6,328	9,931	17,650	28,610	42,560	78,040	129,800	194,000
150	366	111	205	328	580	948	1,655	2,273	3,810	5,528	8,675	15,420	24,990	37,180	68,170	113,400	169,500
125	353	95	175	280	496	811	1,415	1,943	3,256	4,724	7,414	13,180	21,360	31,780	58,260	96,940	144,800
100	338	79	145	232	411	672	1,173	1,612	2,701	3,919	6,150	10,930	17,720	26,360	48,330	80,410	120,100
90	331	72	133	213	377	617	1,076	1,478	2,477	3,594	5,641	10,030	16,250	24,180	44,330	73,760	110,200
80	324	66	121	194	343	561	979	1,345	2,254	3,270	5,132	9,122	14,780	22,000	40,330	100,300	100,300
70	316	59	109	175	309	505	881	1,211	2,029	2,943	4,619	8,211	13,310	19,800	36,300	60,400	90,240
60	308	53	97	155	274	449	783	1,076	1,803	2,616	4,105	7,296	11,820	17,590	32,260	53,670	80,190
50	298	46	85	136	240	392	684	940	1,575	2,286	3,587	6,376	10,330	15,380	28,190	46,900	70,080
40	287	39	72	116	205	335	585	803	1,346	1,953	3,066	5,449	8,831	13,140	24,090	40,080	59,890
30	274	33	60	96	170	278	485	666	1,115	1,618	2,539	4,514	7,315	10,880	19,960	33,200	49,610
25	267	29	54	86	152	249	434	596	999	1,449	2,274	4,042	6,551	9,747	17,870	29,730	44,430
20	259	26	47	76	134	219	383	526	881	1,279	2,006	3,566	5,780	8,600	15,770	26,230	39,200
15	250	22	41	66	116	190	331	455	763	1,107	1,737	3,087	5,003	7,444	13,650	22,710	33,930
10	240	19	35	55	98	160	279	384	643	933	1,464	2,603	4,218	6,276	11,510	19,150	28,610
5	228	15	28	45	79	130	227	311	522	757	1,188	2,112	3,423	5,093	9,339	15,540	23,220
0	212	11	21	34	60	97	170	233	391	568	891	1,583	2,566	3,818	7,000	11,650	17,400
-5	192	8	14	23	40	66	115	158	265	385	604	1,073	1,739	2,587	4,743	7,892	11,790
-10	160	4	7	12	20	33	58	80	134	195	306	543	881	1,310	2,402	3,997	5,972

Blue Numbers Indicate Pounds of Steam Per Hour

Black Numbers on Green Backround Indicate Velocity in Feet Per Minute