Pneumatic Pressure/Vacuum Hand Pumps

Generate either a vacuum or a pressure for calibrating low pressure or vacuum instrumentation using an external pressure calibrator

• Generate either 100 psi (7 bar) pressure or -25” Hg (-635 mm Hg) vacuum with the same pump
• Unique design allows the user to convert from pressure to vacuum by simply twisting a knob, even with gloves on
• Two outlet ports allow connection to reference pressure gauge or pressure calibrator as well as device under test, thus eliminating a tee
• Large volume fine adjustment piston provides precise control, even at very low pressures
• Precisely vent pressure with soft seated bleed valve
• Made in U.S.A.