Green Pumping

Manufacturers offer high-efficiency pumps for moving wastewater, sludge, and chemicals with lower demand for electricity

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Moving fluids and solids streams takes energy. High-efficiency pumping systems can help wastewater treatment plants reduce their energy bills and shrink their carbon footprint. Here are just a few of the high-efficiency pumps available from manufacturers for a wide range of pumping applications.

Chemical transfer

ProVane Motor Speed Vane pumps from Blackmer are geared to chemical transfer applications for wastewater treatment. Available in ductile iron or stainless steel models, the pumps are designed for continuous duty in low- and medium-viscosity process applications. They are also capable of low-flow, high-head applications on low-viscosity fluids where centrifugal pumps cannot effectively operate. The pumps deliver operating speeds up to 3,600 rpm and capacities from 6 to 100 gpm. 616/241-1611;

Easy to service

Eclipse pumps from Pulsafeeder Inc. have only 16 parts that are self-aligning and allow for easy maintenance. The pump can be entirely serviced from the front with minimal tools. It is magnetically driven and has zero leakage with no seal flush system. Universal motor adaptors mate up to multiple NEMA and IEC motors, and universal flanges mate to both ANSI and DIN flange connectors. The Eclipse 125 features a wider drive gear, idler gear and liner and is crafted with engineered fluoropolymer, carbon graphite and graphite-impregnated silicon carbide bearings. 585/292-8000;

Wide range of choices

Advanced Series pumps by Wilden Pump & Engineering Co. are available in diecast aluminum, stainless steel and alloy C, in sizes from one to three inches, and in flow rates 56 to 270 gpm and maximum pressures to 125 psi. The pumps are available with elastomer options that include Buna-N, Neoprene, EPDM, Polyurethane, Saniflex, Quadra-flex, PTFE, Viton and Wilflex with temperature limits -60 to 350 degrees F. 909/422-1730; www.

Control options

Series 500 hydraulic metering pumps from Neptune Chemical Pump Co. are available with four automatic control options. Electric stroke control allows control automatically by a process instrument or manually from a remote location. Pneumatic stroke control can be controlled by an instrument air signal to change stroke length. Variable speed control is controlled automatically by a process instrument using a variable-speed drive to change pump-stroke speed. Sodium hypochlorite gas bleed is a special head designed with an automatic air release valve to vent gas accumulation from chemicals that offgas. 888/363-7886;

Multiple sizes

811 Series ANSI pumps from Griswold Pump Co. have large sight glasses and magnetic drain plugs. A fusion-bonded epoxy coating on the interior surface of the power frame provides a barrier between the iron frame and oil. The pumps offer a full range of pump sizes for flow rates up to 4,000 gpm. Standard and low-flow models are available. Features include heavy-duty power frames, fully open impellers with rear adjustment capability, and a variety of mechanical seal options. The pumps are available with ductile iron, 316 stainless steel, CD4MCu and Alloy 20 liquid paths. 800/843-9222;

Electric or diesel

JSC Series Solids Handling Enviroprime por-table pumps by Thompson Pump & Manufacturing Co. Inc. range in size from 3 to 18 inches. They are designed for high flows to 11,000 gpm and heads to 330 feet and are available as diesel or electric-driven. These end-suction centrifugal pumps can handle solids up to 4 inches. The compressor-assisted dry priming system prevents blow-by from discharging onto the ground. 800/767-7310;

High flow, moderate pressure

The STV pump from Ruhrpumpen Inc. can operate at very high flow with moderate discharge pressures up to 65 psi. A contoured shaft nut matches the shroud line so that stringy materials will not catch. The pump is contoured to match internal waterways so that flow is unimpaired. For maximum efficiency, the adjustable rotor position provides for controlled impeller-casing clearance. 800/334-2553;

High head ability

Pumps 2000 America AODD by Megator Corp. include 1-, 1.5- and 2-inch designs capable of passing up to 1.5-inch solids. A fire retardant anti-static (FRAS) conductive plastic carrying an Atex M1 rating is included. Supersuction ability (27 feet, wet or dry) is due to the unit’s double-hinged diaphragms, long stroke, and self-cleaning slurry and ball valves. 800/245-6211;

Wide range of liquids

Trash Auto Prime Pumps from Global Pump Co. handle a wide range of liquids, including water, sewage and sludge that can contain solids and other material. They are completely automatic and self-priming pumps. The vortex im-peller minimizes drag for improved fuel efficiency and extended run time.

The model 6GSTAP has maximum flows of 2,000 gpm and maximum total head of 165 feet while handling solids up to three inches in diameter. It is powered by a water-cooled, 4-cylinder diesel engine. Alternative drives are available, including electric motors. The complete line of pumps includes sizes from four inches to 18 inches with maximum flows from 1,250 to 12,000 gpm and solids handling capability up to 4 inches. 866/360-7867;

Moving sludge and sewage

The Patterson Pump Co. H2O Works municipal line of wastewater pumps includes the Forceline NCS Series pump, designed for efficient pumping of sludge and raw unscreened sewage. Its self-cleaning ring prevents clogging. This field-tuned, dry-pit service pump comes in capacities from 150 gpm to 12,000 gpm, with heads in excess of 250 feet. It is available in three basic con-figurations, from 3-inch to 12-inch discharge. 706/886-2101; www.patterson


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