Blowers
Rotary lobe blower
Tyr rotary lobe blowers from Busch Vacuum Pumps and Systems are vacuum and low-pressure generators that operate with piston ring seals. Available in six sizes, they can be adjusted by selecting the drive and variable speed. Due to the noncontacting design, operating fluid is not required in the compression chamber. Automatic belt tensioning between the drive and blower stage eliminates manual checking and re-tensioning of the v-belts. The operating pressure, filter and gear oil level can be monitored via displays on the housing. Depending on the version, acoustic insulation reduces noise. An optional acoustic enclosure can reduce noise by another 15 to 20 dBA. 757/463-7800; www.buschusa.com.
Bi-lobe aeration blower
MB bi-lobe aeration blowers for MBBR, sludge and equalization tanks from Eurus Blower are rated to 15 psig and flows to 3,950 cfm. They have integral-shaft ductile iron impellers, dual-splash lubrication, oversized roller bearings, piston ring air seals, viton lip seals, and low vibration and noise. Packages have integrated intake filter/silencers with washable filter media, heavy-duty base/integrated discharge silencers, vibration dampers, OSHA guard and a V-belt drive with automatic belt tensioner. Options include motors, check valves, safety valves, flexible connectors and sound enclosures. 630/221-8282; www.eurusblower.com.
High-speed centrifugal blower
The Hoffman Revolution high-speed centrifugal blower from Hoffman & Lamson, Gardner Denver Products, delivers up to 45 percent energy savings, provides high reliability with little maintenance, and is factory prewired and tested in an ergonomic sound enclosure for plug-and-play operation. A small footprint reduces installation costs. It has a 1-meter certified sound rating below 80 dBA, a self-contained cooling system, air-filtration elements, high-efficiency impeller, magnetic smart bearings and blow-off valve assembly. 866/238-6393; www.hoffmanandlamson.com.
Ready-to-use blower package
Com-paK blower packages from Kaeser Compressors arrive ready for use and include a motor with automatic V-belt drive tensioning, inlet/outlet silencers, full sound enclosure, starters/drive, a full complement of sensors and an onboard controller. Units are available in wye-delta start and variable-frequency drive. All routine maintenance points are accessible from the front, and utility connections are in the back. All pipe connections and cooling air apertures are at the rear, making side-by-side installation possible. An Ethernet port and built-in Web server enable remote access and integration into wastewater treatment plant control/monitoring systems. ModBus, Profibus, Profinet and Devicenet industrial communication interfaces are available. 877/586-2691; www.kaeser.com.
Blower package system
Qube Packages from Tuthill Vacuum & Blower Systems can be used for aeration where the blower supplies oxygen to the aeration tank or pond, for basic sewage and sludge movement, and for transfer of digester gases. Packages come with a Qx rotary positive-displacement blower. A maintenance-friendly noise enclosure with easy access includes an instrument panel with process gauges, and an oil drain/level gauge accessible from the front. The mounting base includes integral fork truck pockets, automatic V-belt tensioning with belt replacement indicator and a relief valve. The package is suitable for outdoor installation and is offered with flows from 85 to 950 cfm and pressure ranges up to 18 psig. 417/865-8715; www.tuthillvacuumblower.com.
Tri-lobe blower package
Quiet Pulse blower packages from United Blower have tri-lobe blowers with pulsation control and helical gears that eliminate inlet silencers and reduce the discharge silencer size. Direct mounting of the inlet filter/silencer to the blower inlet flange eliminates flex joints. Automatic belt tensioning reduces belt slippage and wear, preventing premature blower-drive bearing failure. The design eliminates a separate inlet filter and silencer, providing smaller, lighter, maintenance-free units that allow for smaller noise enclosures. Acoustical foam provides noise attenuation; access on three sides and the roof facilitates maintenance. 770/479-3000; www.unitedblower.com.
Couplings/Fittings/Components
Screw pump components
Evoqua Water Technologies supplies original-equipment Internalift screw pump component replacements and repairs for lifting of liquids in municipal or industrial applications. Company experts provide equipment evaluations and recommend the best options to restore original pumping efficiency, extend useful life, avoid downtime and meet operating budgets. Turnkey services include removal or rehabilitation of existing equipment and installation of new equipment or components. 262/521-8442; www.evoqua.com.
Pump-motor alignment solution
The tab@lign tablet-based solution for pump-motor alignment from LUDECA combines PRÜFTECHNIK laser measurement technology with a tablet or smartphone device. The app runs on Apple and Android mobile devices and can be downloaded free from the Apple App Store or Google Play. 305/591-8935; www.ludeca.com.
Expansion joint
The 233-L and 234-L all-rubber high-lateral expansion joints from Proco Products operate at up to 145 psig (nominal size dependent) or up to 250 degrees F (elastomer dependent). They can be specified for numerous piping system requirements. They are constructed of various elastomers with rubber-impregnated polyester tire cord and a reinforcing ring at the top of the arch to provide stability in large lateral offset conditions. The four-arch design can offer up to 8 inches of lateral offset, providing savings when attaching to a pipe system next to water tanks and reservoirs. 800/344-3246; www.procoproducts.com.
Union fittings
Dialectric union fittings from the SIGMA Corporation are designed for installation between pipes made from dissimilar metals, preventing corrosion from galvanic and stray current. Ranging from 1/2 to 2 inches, they have a female iron pipe thread to solder connection and are certified to UPC standards. The unions are compliant with the No Lead Plumbing Law. The insulator insert is made from PSU 3010. The EPDM gasket is designed for standard temperature applications of up to 180 degrees F at 250 psi. 800/999-2550; www.sigmaco.com.
Grooved couplings
Advanced Groove System (AGS) couplings from Victaulic have a two-piece housing and a wedge-shaped groove that delivers pressure ratings up to 350 psi. A typical large-diameter joint that requires several hours to weld can be installed in less than an hour. The devices simplify installation by providing visual confirmation of proper assembly. Installation is complete when housing segments meet metal-to-metal and torque requirements have been met. The couplings create a union at every joint for easy access to the piping system for maintenance and system retrofits. Couplings are available for pipe up to 60 inches in diameter. 610/559-3300; www.victaulic.com.
Drives
Versatile drive unit
The ACQ550 drive from ABB is available in ratings from 1 to 550 hp and seamlessly integrates as a NEMA 1, NEMA 12 or outdoor-rated NEMA 3R solution. A library of preprogrammed startup assistants provide commissioning for submersible, centrifugal or positive-displacement pumps, and application macros simplify configuration of inputs, outputs and parameters. 800/752-0696; www.abb.com.
NEMA 3R-rated drive
The VLT AQUA Drive from Danfoss VLT Drives is available in a NEMA/UL Type 3R rating, in addition to a NEMA/UL Type 4X enclosure. The new enclosure rating protects against rain, sleet and ice formation. With all cast aluminum parts, drives are inherently NEMA 3R, so there is no need for a separate enclosure. The range of standard I/O can be expanded through factory- or field-installable option cards. Each drive provides simple out-of-the-box operation. 800/432-6367; www.danfossdrives.com.
Medium-voltage AC drive
MV1000 medium-voltage AC drives from Yaskawa America combine compact modular design, high efficiency, low harmonics and high mean time between failures in a drive compatible with 1000 series low-voltage AC drive products. Smart Harmonics reduces input total harmonic distortion (THD) to less than 2.5 percent without filters, exceeding the requirements of IEEE 519-1992 by almost 50 percent. They also provide galvanic isolation between power input and output. They use two 5-volt step bridges per phase to generate a 17-level line-to-line voltage output delivered to the motor. The near sinusoidal waveform results in low THD voltage, low torque ripple and ideal low-speed torque without output filters. They are available in 2.4 kV models with outputs from 200 to 2,750 hp, and 4.16 kV models with outputs from 300 to 5,000 hp. 414/856-2496; www.yaskawa.com.
Motor and Pump Controls
Paddlewheel flow controller
The Type 8032 intelligent paddlewheel switch with backlit display from Burkert Fluid Control Systems can be used in clear, neutral or aggressive liquids to switch a valve and to establish a monitoring system or an on/off control loop. The switching points can be programmed with the three-key keypad under the display, or from an external source over a 4-20 mA loop. The device comes standard with on/off output or with external setpoints and process value outputs. The remote-mount version has a transistor output only. The connection to the process in the piping is done with the quarter-turn technique of the inline fittings. 949/223-3100; www.burkert-usa.com.
SCADA-enabled pump controller
The TCU pump controller from Data Flow Systems combines automated pump control functions with SCADA communications for fixed-speed and VFD applications. It is designed to automate up to three pumps or can be linked in series to accommodate any number of pumps. It has an intuitive operator interface and expandable I/O interface; no PLC knowledge is required. The HOA switches are fail-safe and remain functional even with loss of power. The unit is SCADA-ready with open Modbus RTU and ASCII protocols and is available with integrated radio, networking, auto-dialer or Verizon cellular communications. It comes with a backup battery and charger and configuration software. 321/259-5009; www.dataflowsys.com.
Valve controller
The Hexacon Model III toxic gas multi-actuator valve controller from Halogen Valve Systems has an OLED information display and optional programmable relay interface module to provide clear, timely informational outputs. An optional second battery allows quick, reliable valve closures. A microprocessor system measures and applies a torque of 30 or 50 ft-lbs for test or emergency valve closures for cylinder and ton container valves. Fire codes recognize and approve the automatic-closing fail-safe shut-off valve system in place of a scrubber. The SCADA option system provides 26 information streams like activation status and error codes by actuator to allow quick corrective action. 877/476-4222; www.halogenvalve.com.
Modular telemetry control panel
TCOM SCADA modular telemetry control panels from Orenco Controls combine the functions of relays, timers and meters in a single device used to control booster stations, reservoirs and community wells. They can also be used as a SCADA patch, connecting peripheral equipment to an existing SCADA system. Panels include built-in communication protocols supported by most existing SCADA systems. They have color touch screens with built-in programming and real-time data acquisition and control over an Internet, cell or phone line connection. TCOM Viewer software is free and works on Windows PC computers, providing an easy-to-understand user interface along with remote access and control, plus the ability to retrieve, sort and graph data. 800/348-9843; www.orencocontrols.com.
Wireless pump control platform
The Radioline wireless platform from Phoenix Contact offers wire replacement for simple I/O and serial communication. It has simple I/O-to-I/O communication without programming software. More advanced configurations, such as high-speed serial communication, network topologies up to 250 nodes, nonintrusive diagnostics and 128-bit AES encryption, can be accessed via the free programming software. It is available in two variants, 2.4 GHz and 900 MHz, allowing for applications to span distances from a few hundred feet to multiple miles. It is suited for simple wire replacement, pump control, sensing, flow and temperature monitoring, and PC/PLC/RTU interface applications. 800/322-3225; www.phoenixcontact.com.
Pump control/level monitor
The PD6000 pump control/level monitor from Precision Digital Corporation includes multi-pump alternation control to increase pump life by distributing loads. The unit has an informative, dual-line, six-digit display that can be customized to meet plant application needs. A 24 VDC power supply is available to power almost any level transmitter. The unit fits a standard 1/8 DIN panel cutout or can be field-mounted in a variety of enclosures. The NEMA 4X IP65 front keeps out water, dirt, dust and grime. MeterView Pro software is available free online and allows for easy programming and simple-to-configure monitoring and data logging. 800/343-1001; www.predig.com.
Efficient control station
ECO SMART STATION control systems from PRIMEX Controls provide a safe, energy-efficient solution for optimum pump control using the latest in VFD technology. The EnergyView Controller with kW Logix Software uses an Efficiency Auto-Tune algorithm that searches for the pump speed (Hz) that consumes the least energy per gallons of liquid pumped. The pump motor power is monitored by the VFDs and transmitted to the controller. No power meters are required. The auto-tune program accounts for the reduction in flow and head characteristics of the pump resulting from speed reductions to determine the best efficiency frequency (BEF). When the BEF is found, the pumps operate at that speed during every cycle. This ECO mode of operation is efficient during low and normal inflows to the pump station. 844/477-4639; www.primexcontrols.com.
Pumps
Air diaphragm pump
The lubrication-free 1-inch air diaphragm pump from All-Flo Pump Company has a non-stall/freeze air system. Engineered for fluid and chemical compatibility, the bolted design offers ease of maintenance and leak-free operation. It is available in a variety of materials and options. A Max-Pass valve system allows operation under conditions from clean fluids to slurries to solids up to 3/4 inch. Pump sizes range from 1/4 to 3 inches. 440/354-1700; www.all-flo.com.
Peristaltic metering pump
The M-2 ProSeries-M peristaltic metering pump from Blue-White Industries offers several pump tube material options, providing treatment with a variety of aggressive and viscous chemicals. It delivers chemical with smooth, quiet, low-velocity pumping action and has an intelligent control system that permits connection to SCADA systems and other remote controllers. Optional SCADA communications command and status capabilities include start, stop, prime, setpoint speed, motor status and others. Available protocols include Profibus DPV1, Modbus RTU, Modbus-TCP, EtherNet/IP and Profinet RT I/O. A Tube Failure Detection system detects noncompatible fluid in the pump head, shutting down the pump and sending an alarm. It has feed rates from 0.01 to 15 gph, pressures to 125 psi and a 200-1 turndown ratio. It is NSF Listed Std.61. 714/893-8529; www.blue-white.com.
Mobile rotary lobe pump
Mobile rotary lobe self-priming, valveless, positive-displacement pumps from Boerger are used for rapid deployment of floodwater, stormwater, domestic wastewater, industrial effluents and biosolids, spills, and digester and lagoon clean up. Twenty pump models in six series are offered with pulsation-free operation, fully reversible rotation, dry-run capabilities and flow rates to 5,000 gpm. All wear parts can be replaced through the front cover without removal of piping or drive systems. 612/435-7300; www.boerger.com.
Diaphragm metering pump
ProCam diaphragm metering pumps from Bran+Luebbe, An SPX Brand, are designed for applications such as pH control, flocculation and fluoridation. Available in five models with flow rates from 1.3 to 132 gph they are suitable for pressures up to 290 psi. They are hermetically closed pumps containing a mechanically operated PTFE double diaphragm that can be constantly monitored. Wet-end material is 316SS or PVC standard. They can be configured with multiple heads linked together and driven by a single motor for chemical blending or dilution. Other options include automated flow control and electronic diaphragm condition monitoring. 800/252-5200; www.spxft.com.
Double diaphragm pump
The 25000 Series electric double diaphragm pump from Edson Pumps can create vacuum lift and discharge pressures comparable to small peristaltic systems. Components can be cleaned and replaced in minutes with virtually no tools. 508/995-9711; www.edsonpumps.com.
Replacement grinder pump
The Upgrade progressive cavity replacement grinder pump from Environment One Corporation is designed to fit nearly any other grinder pump wetwell. It includes slide rails, pump/motor, float switches, piping and motor control devices. All solids are ground into fine particles that pass easily through the pump, check valves and small-diameter pipelines. The unit is designed not to jam and for minimum wear to the grinding mechanism. It comes with a self-contained level control system, eliminating float switches. It is automatically activated and runs for very short periods. The 1 1/4-inch slide face discharge connection is adaptable to any existing discharge piping. The internal check valve assembly is custom designed for non-clog, trouble-free operation. 518/579-3068; www.eone.com.
Wastewater pumping system
The Experior wastewater pumping system from Flygt – a Xylem Brand, offers energy savings in a package that is easy to install and operate. Adaptive N-technology allows the impeller to move axially upward when necessary to permit bulky or tough debris to pass through, reducing stress on the shaft, seals and bearings. It is available with efficient motors optimized for wastewater pumping. SmartRun intelligent controls enable programming to optimize energy use. 704/409-9700; www.flygtus.com.
Air skimmer
The Geyser Air Skimmer (GAS) from Geyser Pump Tech skims from a large surface area. Its pulse engine has an adjustable pulse rate to minimize waste scum flow and allow time for scum backfill. It has an adjustable suction level and pulse rate and can use an existing aeration blower for retrofit to existing clarifiers. It has no moving parts and is easily removed and disassembled for cleaning. 614/398-0960; www.geyser-pump.com.
Above-ground lift station
The ReliaSource 8x9 above-ground lift station from Gorman-Rupp Company includes Gorman-Rupp pumps, controls and enclosures. It is fully assembled and rigorously tested to operating conditions. 419/755-1011; www.grpumps.com.
Sewage pump
The 3SD submersible, non-clog sewage pump from Goulds Water Technology – a xylem brand, combines dual hard-face mechanical seals with a 300-series stainless steel keyed shaft motor for defense against environmental conditions. It has a cast-iron, two-vane semi-open, non-clog impeller with pumpout vanes for mechanical seal protection. The pump is balanced for smooth operation, has a seal sensor probe and can run dry without damaging the inner components. It comes in single- and three-phase options, with a range of 1.5 to 5 hp, supporting several hydraulic requirements. It is UL and CSA certified. 866/325-4210; www.goulds.com.
Submersible shredder pump
S4SHR and S4SHR-LP 4-inch hydraulic submersible shredder pumps from Hydra-Tech Pumps are designed to rip and shear solids with a 360-degree shredding action. The carbide tipped impeller and hardened macerator suction plate work together to produce a violent shredding action that keeps the discharge open. The S4SHR is suited for municipal, industrial, agricultural and institutional applications. The S4SHR-LP is narrower at 21.5 inches, allowing it to fit through most manholes. A guide rail assembly is available for stationary applications. Combined with HT15 to HT35 power units, the pumps are capable of flows up to 810 gpm. The variable-speed hydraulic drive can be used where electric power is hazardous or impractical. 570/645-3779; www.hydra-tech.com.
Axial-flow recirculation pump
The Model AXP axial-flow recirculation pump from Landia pumps large liquid quantities at low head. Designed with a sturdy planetary gear system for high efficiency, it pumps wastewater at low energy cost. With a propeller designed for efficiency the pump can be used to recycle activated sludge from aeration zones into anoxic zones. It has a reliable triple-stage sealing system. Its propeller and volute insert are made of stainless steel. 919/466-0603; www.landiainc.com.
Diaphragm dosing pump
The MEMDOS LP motor-driven diaphragm dosing pump from Lutz-JESCO America Corp. offers capacities to 270 gph and pressures to 232 psig. It uses a 115 VAC 60 Hz power supply and operates at greater than 90 percent motor efficiency. It includes dosing control and diaphragm rupture inputs, batch dosing with interval and timer functions, infinitely adjustable stroke frequency from 0 to 100 percent, and external control via standard signal 0/4-20 mA. It is available in PVC, PVDF, polypropylene and stainless steel construction and with an Ethernet interface. It can be outfitted with a double-diaphragm system. 800/554-2762; www.lutzjescoamerica.com.
General utility pump
General utility pumps from Moyno suit water sampling and chemical applications. Design simplicity reduces maintenance and downtime. Accurate, repeatable, nonpulsating, low-shear flow handles multiple applications. The compact units (flows to 50 gpm and pressures to 600 psi) are offered in motorized and nonmotorized models. Packing or mechanical seals are available. 877/486-6966; www.moyno.com.
Regenerative turbine pump
Regenerative turbine pumps from MTH Pumps can reach pressures from 10 to 1,000 psi at low flow rates, making them well-suited for water sampling where samples from many locations need to be moved to one central location. Custom-sized for required pressure and flow to guarantee efficient performance, the pumps can distribute water hundreds of feet to testing sites throughout a treatment facility. They can also be used for pressure boosting, such as for spray/washdown, seal flushing and dust control. With the ability to handle 20 percent vapor by volume, they can generate micro-bubbles for dissolved air flotation processes. 630/552-4115; www.mthpumps.com.
Mechanical metering pump
The 7000 Series mechanical metering pumps from Neptune Chemical Pump Company are designed for dosing of alum and ferric chloride in treatment applications. The self-priming, mechanically actuated pumps eliminate contour plates on the liquid side of the diaphragm, resulting in a simple, straight-through valve and head design that allows improved flow characteristics. They handle clear liquids with viscosities from water-like to 5,000 cPs. The capacity is manually adjustable via micrometer dial while the pump is running, allowing the pump to produce flows from 10 to 450 gph at head pressures up to 150 psi. The liquid ends are constructed of PVC. Explosion-proof, variable-frequency drive and wash-down duty motor options are available. 215/699-8700; www.neptune1.com.
Sludge cake conveying system
NEMOBF/SF positive displacement pumps from NETZSCH Pumps North America convey dewatered sludge from filter presses or centrifuges. The customizable rectangular hopper and force-feed chamber provide direct entry into the rotor and stator. The coupling rod incorporates a positioned feed screw auger that extends over the joints and is always positioned opposite the open cavity of the stator. This gives sludge cake the shortest possible route into the open cavity, improving chamber filling. The Friction Loss Reduction System achieves considerable pressure reduction, lowering operating costs and improving service life. A ring nozzle delivers a continuous, even, 360-degree layer of water or polymer within the pipeline for friction loss reduction and pressure reductions up to 50 percent. 610/363-8010; www.netzschusa.com.
Positive displacement pump
The Double Disc positive displacement pump from Penn Valley Pump Co. eliminates high maintenance costs with a Maintain-in-Place hinged housing that allows servicing without disturbing piping. It eliminates packing glands and mechanical seals, providing clean, leak-free installation. It does not rely on close tolerances to generate flow and so offers an extremely low wear rate. It can run dry without damage and is routinely used for sludge-handling applications, including dewatering feed, thickened sludge, digested sludge, primary sludge, scum, septage and lime slurry. It is self-priming, with flow rates from 1 to 1,300 gpm and handles up to 2-inch solids and line-size semi-solids. 215/343-8750; www.pennvalleypump.com.
Electric actuator
CMA Series electric modulating actuators from Rotork Instruments are sized for linear, quarter-turn and rotary control valve and pump applications requiring precise position control and continuous modulation. They are powered by single-phase or direct-current supplies, eliminating air hoses and compressors. Setup and configuration is easy via push buttons and an internal six-segment LCD display. Resolution is 0.25 percent on linear and quarter-turn applications and 2 degrees on the multi-turn configuration. The devices have permanently lubricated and maintenance-free drive trains, 4-20 mA loop-powered feedback signals, and digital communication options including HART, Foundation Fieldbus, Profibus, Pakscan, RIRO and Modbus. 336/659-3493; www.rotork.com.
Vertical turbine pump
VTP (Vertical Turbine) pumps from Ruhrpumpen operate in wells or sumps. The bowl assembly consists of a suction case or bell, one or more pump bowls, and a discharge case. It has API 610 latest edition construction (VS1 type), oversized bowl shaft sizing, and collet-mounted impellers, with a capacity of up to 60,000 gpm, head up to 2,500 feet, and a maximum pressure of 1,080 psi. 918/627-8400; www.ruhrpumpen.com.
Tube-mounted screw pump
The self-contained Archimedian Tube-Mounted Screw Pump (TMSP) from Schreiber turns inside a stationary support tube, allowing it to transport return activated sludge at low rpm, eliminating floc shearing. It can be set at a fixed angle, or the lower end can be hoist-supported, allowing the pump angle to be varied. The variable pumping capacity, which can be modulated even at constant speed by adjusting the pump angle, eliminates variable-frequency drives. The optional hoist facilitates access for maintenance. The self-aligning lower support bearing is a single-row, spherical roller bearing designed for radial and thrust forces. The lower bearing lubrication system uses a transparent oil reservoir and a gravity supply tube that eliminates a grease and recovery system. 205/655-7466; www.schreiberwater.com.
Cake pump system
The piping-contained cake transfer system from seepex replaces the open-air cake transfer method using conveyors. The pitch, diameter and speed of the auger that pushes the cake into the pumping element can be adjusted to match the application, while load cells automate the process. The hopper is fitted with sensors that detect the increase in weight and adjust the speed accordingly, saving energy. The system is also fitted with a pressure sensor, dry-running protection sensor and a boundary layer injection system. An engineered control panel ensures properly functioning components. 877/806-4152; www.seepex.com.
Peristaltic pump
Masterflex peristaltic pumps from Thermo Scientific eliminate the risk of vapor lock, as the chemicals being pumped are confined to elastomer tubing and never contact the pump itself. They deliver optimal chemical resistance to high-strength chemical oxidants like sodium hypochlorite, aggressive materials like ferric chloride, polymers and other shear-sensitive products, and highly viscous and abrasive materials like lime slurries. Rollers on the pump head rotor squeeze the tubing, generating vacuum that propels the solution through the tube at a specified rate. Scale does not build up in the pump because there are no valves or seats exposed to the fluid stream. The pumps offer simple operation and a large practical turndown and capacity range with one variable, single-speed adjustment. When the pump stops, the occluded portion of the tube stays squeezed shut with no siphoning effect. 800/637-3739; www.thermoscientific.com.
Screw centrifugal pump
Triton screw centrifugal pumps from Vaughan Company handle thick biosolids, large or stringy solids, shear-sensitive fluids and delicate or highly abrasive materials. They offer steep performance curves, non-overloading power characteristics, heavy-duty power frames and a flushless mechanical seal. A water-flushed mechanical seal or packing is available. 888/249-2467; www.chopperpumps.com.
Horizontal-end suction pump
The 1600 vortex close-coupled horizontal-end suction pump from Vertiflo Pump Co. has back pullout construction, a fully recessed vortex impeller and an external impeller adjustment. It has capacities up to 1,600 gpm and 170 feet TDH and can operate in temperatures up to 250 degrees F. It is available in cast iron, 316 stainless steel fitted, all 316 stainless steel, Alloy 20 and CD4MCu. 513/530-0888; www.vertiflopump.com.
Valves
Air valve
AirPro Max air valves from Henry Pratt Company have a body shape that fits a smaller valve vault. Their float/linkage design is suitable for higher pressures. The design prevents seat leakage and float mechanism failures and has close-tolerance machined parts, stainless trim, and standard hoods or threaded caps. The valves have a large orifice to break vacuum, or a small orifice for air release under pressure. Both can be combined to allow maximum pumping efficiency and protection from pipeline damage due to vacuum‑induced collapse or surge‑induced breaks. 877/436-7977; www.henrypratt.com.