Quality Cryogenics Rigid Vacuum Jacketed Pipe Heat Leak Rates:
Quality Cryogenics manufactures standard VJP up to 4” inner diameter. For applications that require larger pipe sizes, please contact our factory, in Jasper, Georgia.

Inner Pipe Size/material	Jacket Pipe Size/material	Total Weight	Cool down lb of LN2/ft (Kg of LN2/m)	Heat Leak BTU/Hr/Ft (Watt/m)	Bayonet Heat BTU/Hr (Watt)	Field Joint BTU/Hr (Watt)
CRYO-FAST VJ PIPE
½"ODT X .035W 12.7 mm OD 304SS	2"ODT X .065W 50.8 mm OD 304SS	1.6 lb/ft 2.4 kg/m	0.10 (0.15)	0.28 (0.27)	7.2 (2.1)	N/A
QUALITY CRYOGENICS VJ PIPE
1/2" SCH 5 21.3 mm OD 304SS	2" SCH 5 60.3 mm OD 304SS	2.4 lb/ft 3.6 kg/m	0.27 (0.40)	0.32 (0.31)	6.6 (1.9)	5.9 (1.7)
1" SCH 5 33.4 mm OD 304SS	3" SCH 5 88.9 mm OD 304SS	4.2 lb/ft 6.2 kg/m	0.43 (.064)	0.45 (0.43)	9.1 (2.7)	5.9 (1.7)
1 1/2" SCH 5 48.3 mm OD 304SS	3 1/2" SCH 5 101.6 mm OD 304SS	5.0 lb/ft 7.4 kg/m	0.64 (0.95)	0.56 (0.54)	13.3 (3.9)	8.5 (2.5)
2" SCH 5 60.3 mm OD 304SS	4" SCH 5 114 mm OD 304SS	5.8 lb/ft 8.6 kg/m	0.80 (1.19)	0.75 (0.72)	24.0 (7.0)	11.5 (3.4)
3" SCH 5 88.9 mm OD 304SS	5" SCH 5 141 mm OD 304SS	9.8 lb/ft 14.6 kg/m	1.51 (2.25)	0.98 (0.94)	N/A	29.4 (8.6)
4" SCH 5 114 mm OD 304SS	6" SCH 5 168 mm OD 304SS	12.0 lb/ft 17.9 kg/m	1.96 (2.92)	1.28 (1.23)	N/A	35.3 (10.3)