Transfer liquids and gases in absolute safety at smooth, variable rates up to 450 gallons per hour!
Manostat Macrostatic andVaristalticPumps Ideal for handling acids, bases, toxic and sterile liquids and gases, these rugged, economi cal, dependable pumps give you complete freedom from danger of contamination, and cleaning problems. Fluids never come in contact with any part of the pump . . . pass only through chemically inert tubing. Changeovers are quick and simple—merely change the tubing. Completely safe— no belts, pulleys, or moving parts are exposed. You can even pump two liquids simultaneously, using two sets of smaller tubing!
72-895-07 MacroSitalticPumpfeaturescompletely enclosed Vu HP 120-volt 60-cycle AC motor with manual reset over load protection. Control knob gives variable flow capacity up to 450 gallons of water per hour. Interchangeable rollers accommodate tubing of various thicknesses. With Type A rollers (supplied) Va" wall χ y 2 ", 9/16" or %" I.D. Tubing not included Ea. $210.00 72-895-30 Type IÎ Roller, for Tubing 3/32" wall χ 9/16", % " o r 11/16" I.D Set of 2. $18.00
72-590-60 Varistaltic Pump in compact, lightweight, mod ern two-tone cabinet. Front panel knob provides conven ient, uniformly precise control of flow rate from 120 to 6300 ml. of water per minute. Pressure Head: 90 feet of water maximum. Accommodates tubing 1/16" wall, any I.D. from y8"thru %". 120-volt 60-cycle AC operation, com plete but without tubing Ea. $145.00 72-590-61 Varistaltic Pump as above, but with explosionproof air motor, precise needle valve control. For operation in locations without electrical facilities. Complete but with out tubing Ea. $175.00
GREINER Write for free descriptive bulletin
SCIENTIFIC C O R P O R A T I O N
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22 N. MOORE ST, Dept. 521, NEW YORK 13, Ν. Υ.
Circle No. 48 on Readers' Service Card VOL.
36, NO. 3, MARCH 1964
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