Vacuum Pumps and Vacuum Generators Single-Stage Vacuum Pumps JB15H (NPT Version) Specifications: Compressed Air: 50 Micron, Filtered, Non-lubricated Operating Temperature: -10 to 80°C (14 to 176°F) Optimum Operating Pressure: 5 bar (72.5 psi) Valve Material: Anodized Aluminum, Brass Nozzle Part No. Nozzle Size D in. (mm) L1 in. (mm) L2 in. (mm) Air Consumption scfm (l/min.) Vacuum Flow scfm (l/min.) Vacuum Level in Hg (-mmHg) JB15H 15 0.76 (19) 3.63 (92.2) 1.37 (35) 3.20 (91) 2.65 (75) 27 (690)