Vacuum Pumps and Vacuum Generators Single-Stage Vacuum Pumps JBH12 (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 A Air Inlet B Vacuum Port C Optional Gauge Port D in. (mm) L1 in. (mm) L2 in. (mm) Air Consumption scfm (l/min.) Vacuum Flow scfm (l/min.) Vacuum Level in Hg (-mmHg) JB12H 12 1/4″ NPT 1/2″ NPT 1/8″ NPT 0.76 (19) 3.22 (81.8) 1.37 (35) 2.10 (59) 1.90 (54) 27 (690)
