Triplex Series high-pressure pumps perform in spraying, misting, filtration, cooling, dispensing and pressure-boosting applications. These self-priming, three-chamber pumps operate at flowrates of up to 1.4 gal/min (5.3 L/min) and at operating pressures of up to 150 psi (10.3 bar). They are built using co-injection molding technology, which eliminates potential leak paths and allows the units to run dry for long periods without damage.

This caustic soda pump uses a single rotating and reciprocating ceramic piston to accomplish both the pumping and valving functions. This eliminates the need for the check valves typically found in diaphragm pumps; such valves are subject to caustic soda crystallization, which affects sealing and allows backflow.

KDS EZflow 2010 is a durable, basic syringe pump that enhances the speed and efficiency of operation. It can be used for infusions ranging from 0.1 to 300 mL/h, with an accuracy of 2.5%. Its easy-to-read light-emitting diode (LED) display — which is visible from many angles — shows the flowrate in mL/h or can be toggled to show the total volume delivered in mL. A variety of syringes from 20 mL to 100 mL can be used with the unit. A rapid delivery key eliminates dead volume and excess air in the tubing prior to delivery of the fluids.

The Model VRS vertical rubber-lined sump pump handles tough slurries in chemical processing, power, and pulp and paper applications. The VRS liners, impeller and casing halves are interchangeable with those of the manufacturer’s SRL horizontal pumps, reducing parts inventory and maintenance costs. Changing the field-replaceable elastomer liners does not require a change of the entire pump casing. The pump’s impellers are built with tighter tolerances than other vertical sump pumps, improving operating efficiency and saving up to 40% in energy costs.

Cardinal transformer-oil pumps are rated for continuous-duty operation at temperatures from –40°F to 212°F. They allow thermo-siphon flow when the pump is not operating, which permits natural convection even when the pump is completely shut off. Along with a rugged split-casing design, the use of heavy-duty class 30 cast iron for the pump casing, motor enclosures, impellers and volutes extends the life of the pump. Large thrust-face sleeve bearings minimize wear and reduce maintenance.

E7 aluminum diaphragm pumps have a port size of 0.75 in. and feature a leakfree, bolted construction. Their shoe-valve design prevents blow-by when the pump is online but not in use. They employ the manufacturer’s Elima-Matic air-valve system, which ensures non-stalling, non-icing, lube-free operation. For use in lubrication, adhesive dispensing, OEM systems and many industrial applications, the E7 pumps are available with either metallic or non-metallic air sections.

Suitable for handling a broad range of fluid viscosities, the Industrial Variable Speed Pump (IVSP) features a high-torque, 3-phase variable-speed drive, an integrally mounted valveless pump head, a space-saving, DIN-designed controller, and a 3-digit LED display control module. Motor speed can be adjusted either manually via the front-panel membrane switches, or electronically using 0–20-mA, 4–20-mA or 0–10-VDC input signals. Additional control functions include start, stop, acceleration, forward and reverse.

Tacmina PZ Series electronic metering pumps operate at a capacity that can range from 1 to 1,300 mL/min, and at pressures up to 220 psi. They are available in manual control, external input and programmable models. The pumps are suitable for applications that require accurate, reliable injection of liquid chemicals, nutrients or disinfectants. They will operate on any single-phase voltage, from 94 VAC to 264 VAC, and their patented design leaves flowrates and accuracy unaffected by voltage fluctuations.

For pumping radioactive chemicals where a beta or gamma shield must be present, the KDS 310 Nano Pump syringe pump features a remote pumping unit and control box that can be located up to 6 ft away, thereby protecting the operator. The pump is used exclusively with micro-syringes in sizes from 0.5 to 250 µL. Small size, remote control and a rugged mounting arm make it suitable for use with micromanipulators, stereotaxic frames and other clamping devices. When used on a stereotaxic frame, direct injection can be performed, thus reducing the volume of sample required.

The 2- and 3-in. ported metallic models in the ARO Pro Series of diaphragm pumps are now available in additional materials of construction. Previously offered only in aluminum, the Pro Series now includes cast iron and stainless steel models. Like their aluminum counterparts, the new models feature patented air-valve technology that eliminates pump stalling by utilizing an unbalanced design — by creating an optimal pressure differential, air valves do not center, even under low air inlet pressures.