Versatile sizing
Flygt submersible wastewater pumps from ITT Water & Wastewater range from 3- to 32-inch discharge with integral motors from 2 hp to beyond 1,000 hp. N-Technology solids-handling pumps can handle sludge with up to 8 percent solids and are available in hardened cast iron and 25 percent chrome cast iron. These N-Pumps deliver clog-free operation with sustained high operating efficiency and reduced energy consumption. Flygt submersible mixers and low-head, flow generation pumps are constructed of stainless steel and range from 1 hp to 40 hp. 203/380-4700; www. ittwww.com.
Submersible solids pumps
Submersible solids-handling pumps from Chicago Pump Co. are designed for wastewater, sewage, sludge and light slurry applications. They offer high-efficiency semi-open and enclosed impellers, rugged cast iron design, and silicon carbide seals. Moisture detection sensors and thermal overload protection are standard.
Dry-pit submersible models use closed-loop cooling and are rated for continuous non-submerged operation under full load. Wet-pit submersible models are available with the Easy-Life guide rail system. Free-standing and portable models are available. Motors are designed, manufactured and tested per NEMA MG-1 for Design B motors and are equipped with the Modu-Cab modular cap and cable system for ease of servicing or replacement. 630/236-5700; www.chicagopump.com.
Solids Transfer
The 2000 HS System from Moyno Inc. is designed as a cost-effective alternative for dewatered sludge transfer in municipal wastewater treatment. It has an integral hopper with a twin-screw auger feeder and Moyno G4 progressing cavity pump that handles semi-dry, high solids, dewatered municipal sludge to greater than 50 percent solids. The system uses a non-pulsing flow, which significantly lowers operating pressures. Its twin-screw feeder supplies a constant pressurized feed rate to the pump, resulting in a 100 percent cavity fill rate. 877/486-6966; www.moyno.com.
Electraulic Actuators
Electraulic Actuators from REXA use hydraulics to eliminate mechanical gears. The remote mount electronics and watertight cylinder allow for limited submersion installations. Each self-contained electro-hydraulic unit includes a motor, pump, oil, actuation cylinder and controls. The only required inputs are the control signal and power source; available outputs include position indication, limit switches and alarm relays.
The actuators can be mounted on ball valves, butterfly valves, plug valves, gate valves and dampers. Typical applications include: effluent valve, RAS valve, WAS valve, backwash valve, ozone/oxygen flow control, dissolved oxygen flow, aeration blowers, flare dampers, metering valves, influent valve, sludge line to filter press, air scour valve, and altitude valve. 508/584-1199; www.rexa.com.
Grinder system
The MultiCrusher twin-shaft grinder from Boerger LLC is designed as a robust, reliable unit for downstream protection of pumps and other equipment. With external gear reduction, the unit is suited for applications from gross solids handling to fine particle-size control. The company offers many construction and design configurations, including external stone catchers and control panels. When used in tandem with the company’s rotary lobe pump technology, benefits include identical quenched mechanical seals and other components that allow consolidated parts inventories. With Maintenance In Place (MIP) features, inspection and maintenance can be performed without disconnecting piping or drives. 877/726-3743; www.boerger-pumps.com.
Easy Installation
GF Piping Systems has introduced the Type 369 Wafer Check Valve in sizes up to 12 inches for water and wastewater treatment. The valve eliminates the need for glue or tools for installation – it is simply inserted between two standard ANSI or ISO/DIN flanges for easy installation or removal in the field. Centering eyelets provide easy fitting.
A spring option available in either 316 SS or Hastelloy C allows valve operation in the horizontal position. The unit also incorporates a swinging, flap-type door that enhances flow characteristics. The valve is available in sizes from 1 1/2 to 12 inches and with a PVC body and EPDM or FPM seals. It meets ANSI and ISO/DIN standards. A specially designed sealing Q ring makes it compatible with flat or serrated flanges. 800/854-4090; www.gfpiping.com.
Efficient size reduction
The Sewer Chewer Severe-Duty Grinder from Yeomans Chicago Corp. is designed for efficient solids size reduction in wastewater and sludge handling. A twin shaft arrangement and patented cutter design have low headloss characteristics. A variety of motor and mounting options are available. TEFC gear motors are standard; explosion-proof and submersible (IP68, FM Listed) models are available. Standard NEMA 4X controllers provide digital keypad-type operator interface for user-configurable control and operation. 630/236-5500; www.yccpump.com.
Flow reduction gates
Cast iron gates from Hydro Gate have an efficient reinforcement design that withstands high pressure and a precision-machined wedging system for leakage control for unseating heads. The silicon bronze seating faces provide corrosion-resistant sealing surfaces. Durable design, including self-cleaning metallic seating faces, makes the gate effective where large buildup of particulates and solids is a concern. 800/678-8228; www.hydrogate.com.
Plug and play
The complete mobile skid-mounted decanter centrifuge system from Alfa Laval is a plug-and-play solution for reducing sludge volumes. It allows for rapid and easy installation on site and includes all essential components for dewatering and thickening biosolids. The layout reduces floor-space requirements and eases maintenance. Automatic operation eliminates continuous attendance, and the central control panel enables trouble-free operation and built-in safety. The system can be customized. 866/253-2528; www.alfalaval.us/wastewater.
Gentle mixing
DME 375 and 940 pumps from Grundfos Digital Dosing cover most dosing needs with capacities from 0.00066 up to 248 gph. Offering turndown ratios of up to 1:1000, the pumps deliver a broad spectrum of doses. Simple, logical user-interface displays make it easy to set the required dose in any of 14 preprogrammed languages. Adjustable suction speed makes dosing of viscous fluids reliable and precise, and the design delivers a full stroke length every time, helping to prevent gas buildup and providing a gentle, even mix. 913/227-3400; www.grundfos.us/industry.
Packaged pumping
The ReliaSource 8x12 packaged pumping system from The Gorman-Rupp Co. is the latest in the company’s line of fully engineered, assembled and tested lift stations. The configuration accommodates Gorman-Rupp Super T Series, Ultra V Series or VS Series pumps and has interior walls that allow for sophisticated controls. Side access panels and a removable roof enable easy maintenance. 419/755-1011; www.grpumps.com.
Large grinder
The Channel Monster XD 3.0 sewage grinder from JWC Environmental stands 13 feet tall, weighs 9,300 pounds and produces 7 tons of cutting force at peak loads. It combines rotating screen drums and a Muffin Monster grinder to shred solids while processing up to 59 mgd. The grinder shreds rags, plastics, wood and trash so particles flow easily through pumps and pipelines. The unit has multiple motors: a 15-hp grinder and 1-hp motor for the drums. The grinder has 3-inch hex drive shafts and stainless steel coil drums with 0.5-inch-diameter rod. The design includes larger cutters, shafts and housings to process heavy debris and first-flush storm loading. 800/331-2277; www.jwce.com.
Custom-designed
Wastewater lift stations from Romtec Utilities are custom-designed. The system includes a 6-foot-diameter precast concrete wet well with a Thern crane, safety hatch and pump disconnect panel mounted on the wet well’s precast concrete top. Within the wet well are two submersible pumps by ITT Flygt and level sensing probes and pump guide rails for lowering and lifting the pumps for maintenance. 541/496-9678; www.romtecutilities.com.
Dry motor chamber
WILO Pumps with HC-Type motors from WILO USA LLC have a dry motor chamber cooled by a hermetically sealed, water/glycol-filled cooling system. (The motors are sometimes referred to as jacketed.) Waste heat is dissipated by way of a labyrinth high-efficiency heat exchanger. The motors have cooling bearings with 50 percent higher bearing capacity. They are available in discharge diameters from 3 to 10 inches, and in sizes from 6 hp to 31 hp. 866/476-0323; www.wilo-emu-usa.com.
Automatic filtration
The Series DF fabric filtration system from Serfilco automatically indexes media for continuous filtration, even with varying input or solids content. Contaminated solution is pumped to a diffuser tray that distributes flow across the full width of the filter bed. Particle separation starts immediately via gravity flow through the media to the clean reservoir below the conveyor frame.
Filtered solution can then gravity drain to waste or be returned to the process by a pump. Consumed fabric is advanced to the sludge box as fresh media and simultane-ously indexed to the solution flow. The unit is available in carbon steel, 316 stainless steel, CPVC or polypropylene, in sizes from 1.5 to 113 square feet of filter surface area and flow rates to 650 gpm at 80 micron. 800/323-5431; www.serfilco.com.
Dual diaphragm pump
The Dual Diaphragm Pump from Pumps 2000 is a redesign of the AODD and is suitable for all wastewater applications. Features include patented diaphragm and valves and an air motor that is stall-free and kept running with low air consumption and no oil lubrication. The plastic design is light and resists deterioration even in low-pH locations. 412/963-9200; www.pumps2000usa.com.
Small-diameter solution
The TSP submersible pump with level sensor mount from EPG Companies is designed for small-diameter vertical wells. It can be installed in wells as small as 4 inches in diameter. It offers stainless steel construction for corrosion resistance and E-Glide bearings for extended life and is powered by Franklin Electric motors.
Flow rates range from 2 to 1,200 gpm. A SurePump vertical sump drainer (VSD) provides a sealed unit, ensuring that liquid flow is drawn past the motor for optimum cooling, and facilitating drawdown to the bottom of the vessel. The standard vent valve system purges air from the sump drainer, preventing pump air lock. 800/443-7426; www.epgco.com.
Standby lift station pump
An innovative pump station design from Thompson Pump & Manufacturing lets municipalities and utilities replace traditional emergency backup systems (generator with automatic transfer switch) with a diesel-driven dry prime pump. This independent unit is designed to be more cost-effective for handling pump station problems, such as sewage pump failures. The diesel dry prime pump also can supplement lift station pumps during maintenance or emergency repairs.
The system meets U.S. EPA sound standards at 76dBa or below at 23 feet. The unit is available in 3- to 18-inch sizes with flows to 11,000 gpm, heads to 430 feet, and solids handling to 4.25 inches. It has automatic start/stop systems using floats or transducers and includes automatic monitoring and notification that the backup pump is running. 800/767-7310; www.thompsonpump.com.
Pump and vector drive
Seepex Inc. has released an integrated drive for its line of metering and general transfer progressive cavity pumps. The pump integrates pumps with a single reduction gear reducer, a four-pole, TEFC, inverter-rated 1/2-hp electric induction motor and vector-type, variable-frequency drive in a NEMA 4 enclosure. External or special fabricated control enclosures are not required for high pressure or run-dry applications. The pump and drive combination can cover a performance band of 0.08 gph to 4.7 gpm and pressures to 360 psi. 937/864-7150; www.seepex.com.
Sludge-handling pumps
The 6100CT Series cup-type recessed impeller pumps from Morris Pumps, a division of Yeomans Chicago Corp., are designed for high-grit sludge handling. Features include high-chrome iron construction, reversible casing, bi-directional impeller, replaceable suction cover and rear liner, machined registered fits with O-ring sealed interfaces, stainless steel shaft with hardened stainless steel sleeve, universal stuffing box with packing or mechanical seal. The vortex pump design provides large solids-passing capacity and reduced abrasive wear. Heat-treated 28 percent high-chrome iron offers consistent hardness throughout the pump castings, eliminating soft spots and irregular hardness patterns. 630/236-6900; www.morrispumps.com.
Vacuum feed valve
The OV-110 Omni-Valve vacuum chemical feed valve from Hydro Instruments features a direct linear-drive design and 3-inch captured v-notch valve stem to automatically control chemical feed rates (gaseous or liquid) using any desired control method. 215/453-3102; www.hydro instruments.com.
Single source
The SW Series of submersible water pumps from Charles Austen Pumps Ltd. complements its Enviro air pump/blower, enabling users to single source both types of pumps in sewage treatment plants. Designed for use inside a treatment tank, the pumps feature a strike-resistant and anti-corrosive stainless steel or plastic casing. Performance ranges from 2,500 L/hr up to 20,000 L/hr. Models SW4500F and SW7000F include float switches for applications that require the pump to start and stop automatically. www.charlesausten.com.
Variable-speed pumping
The H20 Drive from SJE-Rhombus is designed for variable-speed pumping applications and features integrated Advanced Pumping Software designed to read discharge pressure and adjust pump speed to maintain constant output pressure without the need for a PLC or separate controller. The drive is available from 5 hp to 150 hp at 200-230 volts and 5 hp to 500 hp at 380-480 volts, and can be set for single or multiple pump operation. The standard drive is supplied in NEMA 1 enclosure with pressure transducer and can be customized for specific requirements. 888/342-5753; www.sjerhombus.com.
Plug valve
The Cam-Centric plug valve from Val-Matic is designed to handle wastewater and industrial slurry. The vee-type packing is field adjustable and replaceable without removal of the actuator. Both the packing and stainless steel radial bearings are protected by grit seals in the upper and lower bearing journals. The 100 percent port flow design minimizes turbulence, head loss and energy consumption. Sizes range from 1/2 inch to 48 inches with either flange or mechanical joint end connections. 630/941-7600; www.valmatic.com.
Valve actuator
The quarter-turn Limitorque QX smart electronic valve actuator from Flowserve Corp. is designed to enhance safety and reduce downtime through improved diagnostics, built-in self-test and LimiGard fault protection. Its brushless DC motors are engineered to eliminate sparks, reduce mechanical and electrical noise and dissipate heat. The LCD screen can be rotated 180 degrees and is available in 10 languages. 972/443-6500; www.flowserve.com.
Floating ball valves
Floating ball valves from Innovative Pressure Technologies feature a two-way floating ball design to deliver reliable operation in most on/off applications up to 10,000 psi. 814/833-5200; www.inpressure.com.
Non-clog pumps
Non-clog pumps from Griffin Pump & Equipment Inc. can deliver flows up to 17,000 gpm with head capacities of 240 feet. The impeller can handle stringy materials and 3-inch solids, while the large cleanout port facilitates debris removal without having to disassemble the suction pipe or hose. Options include vacuum assist or compressor prime, electric or diesel engines, internal fuel tanks for 24-hour operation, trailer mount and sound attenuation. 866/770-8100; www.griffinpump.com.
Centrifugal pumps
E, F and G Series centrifugal pumps from Griswold Pump Co. provide up to 3,000 gpm and heads up to 310 feet in a broad range of sizes and configurations. The pumps are equipped with either close-coupled NEMA electric motors or are frame-mounted with coupling to electric motors, engines, steam turbines or belt drives. Key features include bronze shaft sleeve, bronze wearing rings, carbon, ceramic, Buna and stainless steel mechanical shaft seal components and a single-piece, enclosed impeller made of cast bronze and keyed to the shaft. 800/843-9222; www.griswoldpump.com.
Metering pumps
The Tacmina PZ Series electronic metering pumps from Neptune Chemical Pump Co. Inc. are available in a range of sizes and pressures, from 1 to 1,300 mL/min at pressures up to 220 psi. The pulse metering pumps are available in manual control, external input and programmable models. Models PZD-32/52 and all PZiG models have built-in calibration and allow accurate direct entry of feed rate in mL/min. Control features are onboard every programmable pump, including pH and residual chlorine control. 215/699-8700; www.neptune1.com.
Self-primers
Vaughan Co. offers self-priming Chopper Pumps for lift stations, scum wells, portable cleanouts, or retrofits of clogging pumps. A high-efficiency chopper impeller design allows priming up to 25 feet and flows up to 6,000 gpm. 360/249-4042; www.chopper pumps.com.
Vacuum pump inlet traps
Vacuum pump inlet traps from MV Products can be customized to match specific pumps or pump and blower packages. The traps are designed for vacuum systems ranging from less than 1 cfm to greater than 5,000 cfm. PosiTrap can hold from one to four filter elements, while the Multi-Trap features a knockdown stage and up to six separate stages, each holding multiple elements. Filter media include activated charcoal, Sodasorb, Resisorb, stainless steel and copper gauze, molecular sieve, activated alumina and pleated polypropylene. 978/667-2393; www.massvac.com.
Motor control
The Square D Model 6 low-voltage motor control center offers increased plant floor intelligence and motor protection with the Schneider Electric TeSys T motor management controller. In addition to monitoring a motor’s current, power consumption and voltage, data communications protocols like CANopen, Device-Net, Ethernet, Modbus and Pro-fibus are built into the TeSys T controller and feed information back to centralized process control via on-board I/O, allowing facility management to make critical adjustments to maintain uptime.
The controller is Ethernet-enabled — an advantage for a plant that requires Ethernet capability at the individual motor starter level. The TeSys T controller monitors the current state of motors that power pumps, blowers, fans, compressors and conveyors. It can alert centralized process control if there is a problem with a motor or if a problem is imminent.
The controller can be configured via laptop PC for specific applications and to monitor current or voltage parameters. It has six discrete inputs and three relay outputs, along with an RJ45 port for connecting a laptop PC or the optional TeSys T expansion module, which monitors voltage and features four additional logic inputs. A door-mounted human machine interface (HMI) is also available. 800/392-8781; www. schneider-electric.us.
