New handle design makes these pumps more durable. They quickly attain and hold vacuum of 25 in. (635 mm) Hg. Vacuum trigger release requires only one hand to operate and releases vacuum with the touch of an index finger. Adjustable vacuum release rate.
Smaller size (Cat. No. 6131-0010) has pumping rate of 15 cc/stroke and 3 psig (.21 bar) positive pressure at the exhaust port. Larger size (Cat. No. 6131-0020) has rate of 36 cc/stroke and 7 psig (.48 bar) positive pressure at the exhaust port. Full blank port pressure is obtained with only two strokes. Removable cover on exhaust port and trigger to release vacuum without disconnecting pumps from the line. Without vacuum gauge. Adjustable vacuum release rate controlled by trigger on pump. This economy version is ideal for field or lab use. Nozzle fits standard 1/4-in. I.D. tubing. Supplied with two-ft. length of Clear Plastic Tubing.
|No. per Pkg||1||1|
|No. per Case||4||4|