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Aerated Grit Chamber
Grit Removal and Handling

Removes sand and grit from wastewater using controlled aeration to separate inorganics from organics.

Division 46 – Water and Wastewater Equipment
Chain-and-Bucket Grit Collector
Grit Removal and Handling

Mechanical grit removal system using chain-driven buckets to collect and elevate settled grit particles.

Division 46 – Water and Wastewater Equipment
Chain-and-Flight Grit Collector
Grit Removal and Handling

Continuous chain-driven system that scrapes settled grit from wastewater treatment tank bottoms for removal.

Division 46 – Water and Wastewater Equipment
Grit Classifier
Grit Removal and Handling

Hydraulic separator that removes organics from captured grit using controlled upflow washing principles.

Division 46 – Water and Wastewater Equipment
Grit Washer (Washer Compactor)
Grit Removal and Handling

Mechanical equipment that washes captured grit to remove organics, producing clean sand for beneficial reuse.

Division 46 – Water and Wastewater Equipment
Inline Baffled Grit Separator
Grit Removal and Handling

Channelized grit removal system using baffles to control velocity and promote settling of inorganic particles.

Division 46 – Water and Wastewater Equipment
Traveling Bridge Grit Collector
Grit Removal and Handling

Mechanized bridge system that continuously scrapes and removes settled grit from rectangular wastewater treatment chambers.

Division 46 – Water and Wastewater Equipment
Absolute-Pressure Transmitters
Pressure Measurement

Measures pressure relative to perfect vacuum for accurate process monitoring in pumping and treatment systems.

Division 40 – Process Interconnections
Air Compressors
Aerators

Mechanical systems that compress ambient air for aeration, membrane cleaning, and pneumatic operations in treatment plants.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Air Release Valves
Air Valves

Automatic valves that release trapped air from water pipelines to maintain hydraulic efficiency.

Division 40 – Process Interconnections
Air and Vacuum Valves
Air Valves

Automatically admits air and releases vacuum in water pipelines to prevent damage and ensure safe operation.

Division 40 – Process Interconnections
Altitude Valves
Valves

Automatically controls water tank filling based on level changes for reliable municipal water storage management.

Division 40 – Process Interconnections
Aluminum Pipe
Pipe

Lightweight aluminum piping system for chemical feed lines and treated water distribution in municipal plants.

Division 40 – Process Interconnections
Aluminum Pressure Tanks
Tanks

Aluminum pressure vessels that maintain system pressure and provide surge protection in municipal water systems.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Aluminum Tanks
Tanks

Lightweight, corrosion-resistant storage vessels for water, chemicals, and biosolids in municipal treatment facilities.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Ammonia Gas Feed Systems
Gas Chemical Systems

Ammonia gas feed systems inject anhydrous ammonia for pH control and chloramine disinfection.

Division 46 – Water and Wastewater Equipment
Angle Valves
Valves

Flow control valve with 90-degree internal flow path, combining directional change and throttling functions.

Division 40 – Process Interconnections
Anti-Cavitation Valves
Valves

Specialized control valves that prevent destructive cavitation through multi-stage pressure reduction in high-pressure water applications.

Division 40 – Process Interconnections
Atmospheric Vacuum Breaker Backflow Preventers
Backflow Preventors

Simple backflow preventer that breaks vacuum conditions to protect water supply from contamination through backsiphonage.

Division 40 – Process Interconnections
Automatic Backwash Cloth Filters
Filtration

Automated cloth media filters for tertiary wastewater treatment achieving low effluent suspended solids.

Division 46 – Water and Wastewater Equipment
Automatic Straining Equipment
Filtration

Self-cleaning screens that automatically remove debris and solids from water without manual intervention.

Division 46 – Water and Wastewater Equipment
Axial-Flow / Propeller Pump
Pumps

High-capacity, low-head pumps using propeller impellers for efficient large-volume water transfer applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Backpressure Valves
Pressure Control Valves

Automatically maintains constant downstream pressure in water systems through spring-loaded flow modulation.

Division 40 – Process Interconnections
Bag Filters
Filtration

Fabric bag filters housed in pressure vessels for removing suspended solids from municipal water streams.

Division 46 – Water and Wastewater Equipment
Ball Valves
Valves

Quarter-turn shut-off valves providing reliable flow control and tight sealing in water treatment systems.

Division 40 – Process Interconnections
Band Screens
Screens

Continuous belt-driven mechanical screens that automatically remove coarse solids from municipal wastewater flows.

Division 46 – Water and Wastewater Equipment
Belt Conveyors
Bulk Material Equipment

Continuous belt systems that transport dewatered sludge, screenings, and solids within municipal treatment facilities.

Division 41 – Material Processing and Handling Equipment
Belt Filter Presses
Dewatering

Continuous mechanical dewatering system using dual filter belts to squeeze water from conditioned sludge.

Division 46 – Water and Wastewater Equipment
Bimetallic Thermometers
Temperature Measurement

Mechanical temperature measurement devices using bimetallic coils for reliable process monitoring in treatment plants.

Division 40 – Process Interconnections
Bio-towers
Biological Treatment Equipment

Tall biological reactors using plastic media to remove organics and nitrogen from wastewater efficiently.

Division 46 – Water and Wastewater Equipment
Biologically Activated Filters
Biological Treatment Equipment

Advanced filtration system combining biological treatment and physical straining for simultaneous organics and solids removal.

Division 46 – Water and Wastewater Equipment
Bolted Steel Tanks
Tanks

Field-assembled steel storage tanks using bolted panels for rapid municipal water and wastewater applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Brass Pipe
Pipe

Corrosion-resistant brass piping for chemical feeds and instrumentation in municipal water treatment plants.

Division 40 – Process Interconnections
Bronze Pipe
Pipe

Corrosion-resistant bronze piping for chemical feed systems and chlorine-contact applications in municipal water treatment.

Division 40 – Process Interconnections
Bubbler Systems
Level Measurement

Pneumatic level measurement system using compressed air flow through submerged tubes for accurate liquid depth monitoring.

Division 40 – Process Interconnections
Bucket Elevators
Bulk Material Equipment

Vertical mechanical conveyors using buckets on chains/belts to lift dewatered solids and screenings.

Division 41 – Material Processing and Handling Equipment
Butterfly Gate
Hydraulic Gates

Quarter-turn isolation gate with rotating disc for reliable on/off flow control in water treatment systems.

Division 40 – Process Interconnections
Butterfly Valves
Valves

Quarter-turn valves using rotating discs for efficient flow control and isolation in water treatment piping systems.

Division 40 – Process Interconnections
Capacitance Type Level Meters (Continuous and Point Type)
Level Measurement

Non-contact level sensors using capacitive coupling to provide continuous measurement or point detection in municipal tanks.

Division 40 – Process Interconnections
Carbon Dioxide Gas Feed Systems
Gas Chemical Systems

CO2 gas injection system for precise pH adjustment and corrosion control in municipal water distribution.

Division 46 – Water and Wastewater Equipment
Cartridge Filters
Filtration

Replaceable filter cartridges remove fine particles and suspended solids for water polishing applications.

Division 46 – Water and Wastewater Equipment
Cast Iron Pressure Tanks
Tanks

Pressurized storage tanks that maintain water system pressure and reduce pump cycling in municipal applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Catenary Bar Screens
Screens

Self-cleaning curved bar screens that remove coarse debris from municipal wastewater influent streams.

Division 46 – Water and Wastewater Equipment
Cathodic Corrosion Protection
Corrosion Protection

Electrochemical corrosion prevention system using controlled current to protect buried pipes and tanks from deterioration.

Division 40 – Process Interconnections
Centrifugal Blowers
Blowers

High-efficiency radial-flow blowers delivering pressurized air for biological treatment processes in municipal plants.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Centrifugally Cast Fiberglass-Reinforced Polymer Mortar Pipe
Pipe

Corrosion-resistant composite pipe using centrifugal casting for long-term municipal water and wastewater conveyance applications.

Division 40 – Process Interconnections
Ceramic Tanks
Tanks

Corrosion-resistant ceramic vessels for storing aggressive chemicals in municipal treatment plants.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Chain and Flight Skimmer
Scum Removal

Mechanical surface skimmer using chain-driven flights to continuously remove floating oils and scum from clarifiers.

Division 46 – Water and Wastewater Equipment
Chain-and-Rake Bar Screens
Screens

Mechanical bar screens using chain-driven rakes to continuously remove large debris from wastewater flows.

Division 46 – Water and Wastewater Equipment
Change-of-State Temperature Measurement Devices
Temperature Measurement

Mechanical temperature switches using phase-change materials for reliable alarm indication in municipal treatment processes.

Division 40 – Process Interconnections
Channel-Impeller Pump
Pumps

Large-capacity pumps with channeled impellers designed for high-flow, low-head municipal water transfer with superior solids handling.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Chemical Tablet Feeders
Dry Chemical Systems

Automated systems that dissolve chemical tablets for precise water treatment dosing applications.

Division 46 – Water and Wastewater Equipment
Chlorination Systems
Disinfection

Chemical disinfection systems that inject chlorine compounds to eliminate pathogens in municipal water supplies.

Division 46 – Water and Wastewater Equipment
Chlorine Dioxide Reactors
Gas Chemical Systems

On-site chlorine dioxide generation system for enhanced disinfection with reduced disinfection byproducts.

Division 46 – Water and Wastewater Equipment
Chlorine Gas Feed Systems
Gas Chemical Systems

Pressurized chlorine gas injection systems providing precise disinfection control for municipal water treatment applications.

Division 46 – Water and Wastewater Equipment
Chopper Pump
Pumps

Heavy-duty pumps with integrated cutting systems for handling solids-laden wastewater and sludge applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Circular Clarifiers
Clarifiers

Circular settling tanks that remove suspended solids using gravity separation and rotating collection mechanisms.

Division 46 – Water and Wastewater Equipment
Circular Gravity Thickeners
Thickening

Gravity-fed clarifier that concentrates municipal sludge through settling and mechanical raking for downstream processing.

Division 46 – Water and Wastewater Equipment
Climber-type Bar Screens
Screens

Mechanical bar screen with climbing rake that removes large debris from municipal wastewater flows.

Division 46 – Water and Wastewater Equipment
Coarse Bubble Diffusers
Diffusers

Robust air diffusion system creating large bubbles for biological treatment mixing and oxygen transfer.

Division 46 – Water and Wastewater Equipment
Coatings and Wrapping for Corrosion
Corrosion Protection

Protective barriers preventing corrosion on buried pipes, tanks, and structures in municipal treatment facilities.

Division 40 – Process Interconnections
Combination Air Valves
Air Valves

Dual-function valves that release air during filling and admit air during draining in water pipelines.

Division 40 – Process Interconnections
Comminutors
Grinding

Mechanical cutting device that shreds large solids in raw wastewater into smaller particles.

Division 46 – Water and Wastewater Equipment
Concrete Pipe
Pipe

Reinforced concrete pipe for municipal water/wastewater conveyance systems requiring durability and structural strength.

Division 40 – Process Interconnections
Cone Valves
Valves

Quarter-turn valves using conical plugs for precise flow control in water treatment applications.

Division 40 – Process Interconnections
Continuous Belt Screens
Screens

Automated screening system using continuous moving belt to remove fine debris and solids from wastewater influent.

Division 46 – Water and Wastewater Equipment
Copper Pipe
Pipe

Antimicrobial copper piping for potable water distribution and chemical feed systems in municipal treatment facilities.

Division 40 – Process Interconnections
Coriolis Flow Meters
Flow Measurement

Precision mass flow meters using oscillating tubes for accurate chemical feed and custody transfer applications.

Division 40 – Process Interconnections
Cryogenic Temperature Sensors
Temperature Measurement

Specialized sensors monitoring ultra-low temperatures in municipal cryogenic systems like liquid nitrogen odor control applications.

Division 40 – Process Interconnections
Cyclone Degritter (Hydro Cyclone)
Grit Removal and Handling

Conical vessels using centrifugal force to separate heavy grit and sand particles from municipal wastewater flows.

Division 46 – Water and Wastewater Equipment
Cylindrical Bar Screens
Screens

Rotating cylindrical screens that continuously remove coarse solids from wastewater influent streams.

Division 46 – Water and Wastewater Equipment
Deep-bed Denitrification Filters
Biological Treatment Equipment

Biological filters using carbon media to convert nitrate to nitrogen gas for advanced nutrient removal.

Division 46 – Water and Wastewater Equipment
Dewatering Centrifuges
Thickening

High-speed rotating equipment that separates water from municipal sludge using centrifugal force.

Division 46 – Water and Wastewater Equipment
Dewatering Screw Presses
Dewatering

Continuous mechanical dewatering system using screw compression to remove water from municipal biosolids and sludges.

Division 46 – Water and Wastewater Equipment
Diaphragm Metering Pump
Pumps

Precise chemical dosing pumps using flexible diaphragms for accurate feed rates in treatment applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Diaphragm Pump (Air-Operated)
Pumps

Self-priming pumps using compressed air to move chemicals and slurries without electrical connections.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Diaphragm Pump (Hydraulic)
Pumps

Hydraulic diaphragm pumps deliver precise chemical dosing through hydraulic-actuated diaphragms for municipal treatment applications.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Diaphragm Seals
Pressure Measurement

Flexible barrier systems that isolate pressure sensors from corrosive or fouling process media.

Division 40 – Process Interconnections
Diaphragm Valves
Valves

Flexible diaphragm valve providing tight shutoff and corrosion resistance for municipal water treatment applications.

Division 40 – Process Interconnections
Diaphragm-type Metering Pumps
Liquid Chemical Systems

Precision chemical dosing pumps using flexible diaphragms for accurate feed rates in treatment applications.

Division 46 – Water and Wastewater Equipment
Differential Pressure Transmitters
Pressure Measurement

Measures pressure differences across process equipment to monitor flow, level, and filter performance.

Division 40 – Process Interconnections
Differential Pressure-Type Flow Meters
Flow Measurement

Measures flow using pressure drop across restriction; reliable for steady municipal flows.

Division 40 – Process Interconnections
Diode Temperature Measurement Devices
Temperature Measurement

Solid-state temperature sensors using diode voltage characteristics for precise municipal process monitoring.

Division 40 – Process Interconnections
Direct-Acting Surge Relief Valves
Surge Protection

Spring-loaded valves that automatically open to relieve dangerous pressure surges in municipal water systems.

Division 40 – Process Interconnections
Disc Cloth Filters
Filtration

Advanced tertiary filtration system using rotating fabric discs for municipal wastewater polishing and nutrient removal.

Division 46 – Water and Wastewater Equipment
Disc Screens
Screens

Rotating perforated disc assemblies that continuously remove large solids from municipal wastewater flows.

Division 46 – Water and Wastewater Equipment
Disc Thickeners
Thickening

Rotating disc system that thickens municipal sludge by gravity settling and mechanical dewatering action.

Division 46 – Water and Wastewater Equipment
Dissolved Air Flotation (DAF)
Oil Separation

Physical separation process using microscopic air bubbles to float particles for surface skimming removal.

Division 46 – Water and Wastewater Equipment
Dissolved Air Flotation (DAF) Thickeners
Thickening

Uses pressurized air bubbles to float and concentrate waste activated sludge for volume reduction.

Division 46 – Water and Wastewater Equipment
Doppler Flow Meters
Flow Measurement

Non-invasive ultrasonic meters measuring flow velocity using frequency shifts from suspended particles in municipal pipelines.

Division 40 – Process Interconnections
Double Check Valve Assembly Backflow Preventers
Backflow Preventors

Spring-loaded dual check valve system preventing contaminated water backflow in municipal distribution networks.

Division 40 – Process Interconnections
Double Disc Check Valves
Check Valves

Dual-disc check valve that prevents backflow with reduced water hammer in municipal pumping systems.

Division 40 – Process Interconnections
Drag Chain Conveyors
Bulk Material Equipment

Enclosed chain-driven conveyors that transport screenings, grit, and biosolids in municipal treatment plants.

Division 41 – Material Processing and Handling Equipment
Drum Feed Pump
Pumps

Specialized metering pumps that draw liquid chemicals directly from drums into treatment processes.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Drum Pumps
Liquid Chemical Systems

Portable pumps that extract chemicals and fluids directly from drums for municipal treatment applications.

Division 46 – Water and Wastewater Equipment
Dry Chemical Storage Silos
Dry Chemical Systems

Bulk storage vessels for powdered treatment chemicals with gravity-fed discharge systems.

Division 46 – Water and Wastewater Equipment
Dry Chemical Weighing Systems
Dry Chemical Systems

Automated gravimetric systems that precisely measure and control dry chemical feed rates in municipal treatment plants.

Division 46 – Water and Wastewater Equipment
Dry Polymer Systems
Dry Chemical Systems

Automated systems that hydrate dry polymer powder into liquid solutions for water treatment processes.

Division 46 – Water and Wastewater Equipment
Dry-Pit Sump Pump
Pumps

Centrifugal pumps in dry chambers that lift municipal wastewater and process water via suction piping.

Division 43 – Process Gas and Liquid Handling, Purification, and Storage Equipment
Duckbill Check Valves
Check Valves

Flexible elastomer check valve that opens/closes with flow direction changes, ideal for debris-laden applications.

Division 40 – Process Interconnections
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