MPI offers an extensive portfolio of valves, water control gates and pipe and fittings for any plant or municipal project
Clean Water, Clear Solutions: Comprehensive Water & Wastewater Treatment Services
At McWane Plant & Industrial, we specialize in delivering innovative, reliable, and sustainable solutions for both water and wastewater treatment facilities. Our systems are engineered to meet the highest standards of performance, safety, and environmental compliance—ensuring clean water for communities and industries alike.
From intake to outfall, our treatment solutions cover every stage of the process. Whether it's advanced filtration, disinfection, or sludge management, our technologies are designed to optimize efficiency and reduce operational costs. Our wastewater systems include extended aeration, clarifiers, tertiary filtration, and sludge handling—each component tailored to meet the specific needs of your facility.
We also offer a full suite of cast iron sluice gates, valves, and flow control products built for durability in high-debris and corrosive environments. With decades of experience and a commitment to innovation, we help municipalities and industrial clients modernize their infrastructure and meet evolving regulatory demands.
Explore how our integrated approach to water and wastewater treatment can help you protect public health, preserve natural resources, and future-proof your operations.
Water & Wastewater Treatment Plants Overview
Water and wastewater treatment plants are essential facilities that cleanse used water—whether drinking supply or sewage—before it is returned to the environment or reused. These plants employ a suite of physical, chemical, and biological processes to remove pollutants, ensuring compliance with safety standards and protecting public health, ecosystems, and water resources.
Core Benefits
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Public Health & Safety: Eliminates pathogens like bacteria and viruses to prevent waterborne diseases.
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Ecosystem Protection: Reduces nutrient loads and toxic chemicals to prevent eutrophication and preserve aquatic habitats.
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Water Reuse & Sustainability: Enables treated water for irrigation, industry, groundwater recharge, and even potable reuse in advanced systems.
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Resource Recovery: Produces biogas from sludge and recovers nutrients for fertilizer or energy use.
Typical Treatment Processes
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Screening & Sedimentation: Removes solids and suspended matter.
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Primary Treatment: Coagulation/flocculation and settling tanks remove fine particles.
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Secondary Treatment: Biological digestion (e.g., activated sludge, MBBR) converts organic pollutants and removes nutrients.
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Tertiary Treatment: Advanced removal via filtration, advanced oxidation, and disinfection (chlorine, UV, ozone).
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Sludge Handling: Dewatering, digestion, and safe disposal—or conversion to biosolids and biogas.
Plant Applications
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Municipal Systems: Process everyday sewage for safe discharge and reuse.
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Industrial Treatment: Tailored for effluents from food, chemical, and manufacturing sectors.
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Rural & Decentralized: On-site systems (package plants, wetlands, MBBR) serving remote communities.
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Advanced Reuse: High-grade treatment (RO, microfiltration, UV) for potable reuse or aquifer replenishment.
Why This Matters
Effective treatment systems:
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Protect public health, drastically reducing waterborne disease risks.
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Support sustainable water management, especially in water-scarce regions.
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Reduce environmental impact, conserving ecosystems and groundwater quality.
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Drive economic & social value via resource recovery (energy, nutrients), compliance, and community trust.
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Butterfly Valves
McWane Plant & Industrial offers a comprehensive range of AWWA C504 butterfly valves engineered for reliable flow control in water, wastewater, and industrial applications. Available in sizes from 3" to 72" and pressure classes CL150B to CL250B, our portfolio includes resilient seated, seat-on-disc, seat-on-body, and high-performance butterfly valves. Designed for durability and bubble-tight, bidirectional shutoff for the most demanding applicaitons. With NSF 61/372 certification MPI butterfly valves deliver proven performance and easy actuation integration.
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Gate Valves
McWane Plant & Industrial offers a full line of AWWA-compliant gate valves engineered for durability, performance, and long service life in waterworks and industrial applications. Our portfolio includes resilient seated gate valves (C509 full wall and C515 reduced wall), rotating disc gate valves with self-cleaning seating surfaces, solid wedge gate valves in NRS and OS&Y configurations, and rugged double disc gate valves meeting AWWA C500 standards. Designed for smooth operation and minimal maintenance, MPI gate valves are available in a wide range of sizes and end connections to meet the demands of municipal, and infrastructure projects.
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Check Valves
McWane Plant & Industrial’s AWWA and Ken-Flex Check Valves deliver dependable backflow prevention for water and wastewater applicaitons. Designed in conformance with AWWA C508, our swing check valves are available in 2"–36" sizes and can be equipped with lever-and-spring or lever-and-weight options for enhanced disc control. The Ken-Flex Resilient Hinged Check Valve offers a simplified, maintenance-free solution ideal for dirty water applications, minimizing common issues found in traditional swing check designs. Built for durability and quiet, non-slam operation, our check valves ensure long-lasting performance in demanding environments.
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Eccentric Plug Valves
McWane Plant & Industrial’s Eccentric Plug Valves (EPVs) provide reliable flow control for water, wastewater, and industrial systems, featuring a full-flow body, nickel-welded seat, and Buna-N encapsulated plug for long-lasting performance. Designed to meet AWWA C517 standards, these valves are available in sizes from 3" to 48" with manual, electric, pneumatic, or hydraulic actuation options—delivering durable, low-maintenance shutoff in demanding environments.
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Heavy Duty Cast Slide Gates
Cast Sluice Gates are used in applications where safety and reliable performance are essential (dams, tidal environments, water treatment plants) and where outstanding product longevity is desired. Waterman cast gates are preferred for high-head and high debris environments as well as for critical gateways in treatment plants.
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Fabricated Slide Gates
Fabricated gates are engineered for excellent sealing while providing maximum resistance to corrosion.
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Rectangular Butterfly Gates
VBG Series Rectangular Butterfly Gates allow water control in restricted spaces that prohibit use of a traditional gate, and are also widely specified in applications where a drip-tight seal is required.
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Stop Logs & Stop Gates
Stop Logs are a simple and economical way to stop flows or regulate levels in channels and canals. Waterman Stop Gates are a simple and economical way to stop flows in channels and canals.
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Telescoping Valves
Used in tanks, lagoons, and treatment plants for drawing surface water from one holding area to another or for regulating fluid levels between tanks.
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Hydrostatic Pressure Relief Valves
Used to equalize pressure between groundwater and within tanks and digesters to prevent tank floating.
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Gate Lifts & Controls
MPI offers a complete range of lifting and actuating devices – both manual and automated – to control our gates and valves. Our engineers can recommend the correct Waterman lift to meet or exceed the standards set by AWWA.