: Norris Cylinder :

High Pressure Cylinders
Model	Nom. Dimensions						Approximate Capacity at Rate Service Pressure							Approximate Capacity at 10% Overfill
	Min. Cylinder Volume	Nom. Cylinder Weight	OD	L	tmin	DOT Service Pressure	Air	Oxygen	Nitrogen	Argon	Helium	Hydrogen	10% Overfill Pressure	Air	Oxygen	Nitrogen	Argon	Helium
	(in³)	(lb)	(in)	(in)	(in)	(psi)	(ft³)						(psi)	(ft³)
	(liter)	(kg)	(mm)	(mm)	(mm)	(bar)	(m³)						(bar)	(m³)
Standard DOT/TC Specificaton High Pressure Cylinders
6BC20	214	9.6	5.23	14	0.11	2015	17.2	18.2	16.8	18.1	16	15.7	2216	18.8	20	18.4	19.9	17.5
6BC20	3.5	4.4	132.8	356	2.7	139	0.49	0.51	348	0.51	0.45	0.45	153	0.53	0.57	0.52	0.56	0.5
7BC40	475	22	6.73	18.25	0.14	2015	38.1	40.3	37.3	40.2	35.6	35	2216	41.7	44.4	40.8	44.3	38.9
7BC40	7.8	10	170.9	464	3.5	139	1.08	1.14	1.06	1.14	1.01	0.99	153	1.18	1.26	1.15	1.25	1.1
7BC55	632	26.3	6.73	23.5	0.14	2015	50.7	53.7	49.7	53.5	47.3	46.5	2216	55.5	59.1	54.2	58.9	51.7
7BC55	10.4	11.9	170.9	597	3.5	139	1.44	1.52	1.41	1.52	1.34	1.32	153	1.57	1.67	1.54	1.67	1.46
6BC80	960	46	7.09	32.5	0.14	2015	77.1	81.5	75.5	81.3	71.9	70.6	2216	84.3	89.7	82.4	89.5	78.6
6BC80	15.7	20.9	180.1	826	3.5	139	2.18	2.31	2.14	2.3	2.04	2	153	2.39	2.54	2.33	2.53	2.22
6BC90	960	47	7.09	32.5	0.16	2265	86	91.7	84.1	91.4	80.2	78.6	2491	93.6	100.7	91.5	100.4	87.5
6BC90	15.7	21.3	180.1	826	4.1	156	2.44	2.6	2.38	2.59	2.27	2.22	172	2.65	2.85	2.59	2.84	2.48
6BC110	1320	61	7.09	43	0.14	2015	106	112.1	103.8	111.8	98.9	97.1	2216	115.9	123.4	113.3	123	108
6BC110	21.6	27.7	180.1	1092	3.7	139	3	3.17	2.94	3.17	2.8	2.75	153	3.28	3.49	3.21	3.48	3.06
6BC125	1320	62	7.09	43	0.16	2265	118.3	126.1	115.6	125.7	110.2	108	2491	128.7	138.5	125.8	138	120.3
6BC125	21.6	28.1	180.1	1092	4.1	156	3.35	3.57	3.27	3.56	3.12	3.06	172	3.64	3.92	3.56	3.91	3.41
7BC150	1630	65	7.49	46	0.15	2015	130.9	138.4	128.1	138.1	122.1	119.9	2216	143.1	152.4	139.9	151.9	133.4
7BC150	26.7	29.5	190.2	1168	3.8	139	3.71	3.92	3.63	3.91	3.46	3.4	153	4.05	4.31	3.96	4.3	3.78
8BC75A	3058	136	9.28	56.5	0.215	2300	277.8	296.7	271.5	295.7	259	253.7	2530	302.3	325.7	295.4	324.6	282.7
8BC75A	50.1	61.7	235.7	1435	5.5	159	7.87	8.4	7.69	8.37	7.33	7.18	174	8.56	9.22	8.36	9.19	8
8BC200	2395	101	8.75	51	0.17	2015	192.3	203.4	188.3	202.9	179.4	176.2	2216	210.2	223.9	205.5	223.2	196
8BC200	39.2	45.8	222.3	1295	4.4	139	5.45	5.76	5.33	5.75	5.08	4.99	153	5.95	6.34	5.82	6.32	5.55
8BC200S	2040	94	8.75	45.5	0.16	1800	147.1	154.5	144.3	154.3	137.5	135.4	1980	161.1	170.2	157.7	169.8	150.3
8BC200S	33.4	42.6	222.3	1156	3.9	124	4.16	4.38	4.09	4.37	3.89	3.83	137	4.56	4.82	4.47	4.81	4.26
8BC220	2640	114	9.28	51	0.19	2015	212	224.2	207.5	223.7	197.8	194.3	2216	231.7	246.8	226.5	246	216
8BC220	43.3	51.7	235.7	1295	4.7	139	6	6.35	5.88	6.33	5.6	5.5	153	6.56	6.99	6.41	6.97	6.12
8BC220S	2270	104	9.28	45	0.21	2265	203.4	216.9	198.8	216.2	189.6	185.8	2491	221.3	238.2	216.3	237.3	206.9
8BC220S	37.2	47.2	235.7	1143	5.4	156	5.76	6.14	5.63	6.12	5.37	5.26	172	6.27	6.74	6.13	6.72	5.86
8BC250	2640	115	9.28	51	0.21	2265	236.6	252.2	231.2	251.4	220.5	216	2491	257.4	277	251.6	276	240.6
8BC250	43.3	52.2	235.7	1295	5.4	156	6.7	7.14	6.55	7.12	6.24	6.12	172	7.29	7.84	7.12	7.82	6.81
8BC295	2447	135	9.02	50.5	0.27	2900	273.3	297.4	266.4	296.4	256.3	249.3	3190	296.4	325.2	288.7	324	279.5
8BC295	40.1	61.2	229	1283	6.8	200	7.74	8.42	7.54	8.39	7.26	7.06	220	8.39	9.21	8.17	9.17	7.91
8BC300	2995	134	9.28	55.5	0.22	2400	282.6	303.2	276.4	302.1	263.9	2588.2	2640	307.5	332.4	300.2	331.2	287.8
8BC300	49.1	60.8	235.7	1410	5.7	165	8	8.58	7.83	8.55	7.47	7.31	182	8.71	9.41	8.5	9.38	8.15
8BC340	2557	170	9.15	51	0.326	3500	353.8	370	325.9	368.8	317.6	307.2	3850	389	401.5	350.6	400.3	345.6
8BC340	41.9	77.1	232.5	1295	8.28	241	10.01	10.47	9.22	10.44	8.99	8.69	266	11.01	11.37	9.92	11.33	9.78
8BC345	2557	170	9.31	51	0.34	3600	342.1	379.1	333.1	377.8	325.7	314.6	3960	369.3	411.7	358.8	410.5	354.6
8BC345	41.9	77.1	236.5	1295	8.5	248	9.69	10.74	9.43	10.7	9.22	8.91	273	10.46	11.66	10.16	11.63	10.04
8BC370	3058	161	9.02	61	0.266	2900	341.5	371.7	332.9	370.4	320.3	311.6	3190	370.4	406.4	360.8	404.9	349.3
8BC370	50.1	73	229	1549	6.8	200	9.67	10.53	9.43	10.49	9.07	8.82	220	10.49	11.51	10.22	11.47	9.89
8BC435	2285	267	9.37	51	0.568	6000	441.9	507	426.8	502.9	454.1	425.8	660	466.5	538	450.7	531.9	491.4
8BC435	37.4	121.1	238	1295	14.4	414	12.51	14.36	12.08	14.24	12.86	12.06	455	13.21	15.23	12.76	15.06	13.91
10BC100A	4079	188	10.69	58	0.25	2300	370.5	395.7	362.2	394.4	346.5	338.4	2530	403.2	434.5	394	432.9	377
10BC100A	66.8	85.3	271.5	1473	6.4	159	10.49	11.21	10.26	11.17	9.78	9.58	174	11.42	12.3	11.16	12.26	10.68
10BC400	3960	186	10.69	56	0.26	2400	373.6	400.8	365.5	399.4	348.9	341.4	2640	406.5	439.5	396.9	437.9	380.5
10BC400	64.9	84.4	271.5	1422	6.6	165	10.58	11.35	10.35	11.31	9.88	9.67	182	11.51	12.45	11.24	12.4	10.78
11BC439	5000	210	11.13	64.25	0.26	2300	454.2	485.1	444	483.5	423.5	414.8	2530	494.3	532.6	483	530.7	462.2
11BC439	81.9	95.3	282.6	1632	6.5	159	12.86	13.74	12.57	13.69	11.99	11.75	174	14	15.08	13.68	15.03	13.09
11BC615	4893	270	11.25	64	0.34	3000	563.3	614.7	548.8	612.5	528.9	513.8	3300	609.5	670.8	593.7	668.4	576.2
11BC615	80.2	122.5	285.8	1626	8.7	207	15.95	17.41	15.54	17.34	14.98	14.55	228	17.26	18.99	16.81	18.93	16.32
Dot Exemption/ TC Permit
8BC360	2640	115	9.25	51	0.21	3280	327.2	359.9	318.7	358.6	309.2	0	10% Overfill Not allowed for these Cylinders
8BC360	43.3	52.2	235	1295	5.4	226	9.27	10.19	9.03	10.15	8.76	0	10% Overfill Not allowed for these Cylinders
8BC440	3181	144	9.4	57.5	0.22	3330	399.3	439.7	3888.9	438.1	377.7	0	10% Overfill Not allowed for these Cylinders
8BC440	52.1	65.3	238.8	1461	5.6	230	11.31	12.45	11.01	12.41	10.69	0	10% Overfill Not allowed for these Cylinders
8HP500	2750	140	9.44	51	0.26	4500	437.1	491.2	424.3	490.6	426.8	0	10% Overfill Not allowed for these Cylinders
8HP500	45.1	63.5	239.7	1295	6.6	310	12.38	13.91	12.01	13.89	12.09	0	10% Overfill Not allowed for these Cylinders
8HP535	2750	158	9.4	52.25	0.29	5000	472	531.3	456.2	532.2	467.7	0	10% Overfill Not allowed for these Cylinders
8HP535	45.1	71.7	238.8	1327	7.4	345	13.37	15.04	12.92	15.07	13.24	0	10% Overfill Not allowed for these Cylinders
8HP550	3058	155	9.44	57	0.26	4500	486	546.2	471.8	545.6	474.6	0	10% Overfill Not allowed for these Cylinders
8HP550	50.1	70.3	239.7	1448	6.6	310	13.76	15.47	13.36	15.45	13.44	0	10% Overfill Not allowed for these Cylinders
8HP585	2640	185	9.4	52	0.36	6000	510.5	585.8	493.1	581	524.6	0	10% Overfill Not allowed for these Cylinders
8HP585	43.3	83.9	238.8	1321	9.1	414	14.46	16.59	13.96	16.45	14.85	0	10% Overfill Not allowed for these Cylinders

Notes:
1 DOT Regulations permit filling these cylinders with 10% overcharge (from DOT rated pressure) provided certain other requirements are met.
2 Under no circumstances are these cylinders to be filled to a pressure exceeding the marked service pressure at 70 F.
_ All Cylinders furnished with 3/4" NGT internal threads, unless specified otherwise.
_Nominal weight includes neckring but excludes the valve and cap. Add 1 1/2 lb (0.7 kg) for valve and 2 lb (.91 kg) for cap. _Cap adds approximately 5" (127 mm) to cylinder height.
_Cylinder capacities are approximate at 70 F (21 C).