alert icon

Internet Explorer 8 or 9 is not supported by this website. Please use a more up to date browser.

Hide Message hide icon

Water & Wastewater Treatment

Swagelok helps water and wastewater treatment plants operate efficiently and safely with a wide selection of high-quality, corrosion-resistant fluid system products.

Jump to Section:

Water and Wastewater Treatment  

Fluid Handling Solutions for Water and Wastewater  

Engineer at a wastewater treatment plantWe can support your water or wastewater treatment plant with a broad scope of fluid system products and services. The need for clean, sustainable water supplies is as important as ever. Reliable process control helps ensure water is fit for use. We can work with you across your facility to: 

  • Minimize energy consumption and leaks by evaluating fluid systems for optimal design, performance, and integrity
  • Eliminate or extend the time between maintenance interventions so your plant can function more efficiently with fewer interruptions
  • Leverage the latest advances in materials science to outfit your facilities with stronger, corrosion-resistant solutions

Swagelok specialists can evaluate your fluid systems and develop a plan that gives you confidence you are extending the life of your most important assets. Tap into our global expertise in water and wastewater treatment applications to achieve your goals for high-quality water supplies.

Environmental Applications

Our products support a variety of wastewater and process water treatment systems for municipalities, commercial ventures, and residential developments. Common applications and areas of focus include:

  • Aeration systems
  • Chemical injection skids
  • Chlorine rooms
  • Desalination plants
  • Diesel engines
  • Filtration systems
  • Sampling systems
  • Hydraulic systems
  • Injection wells
  • Level measurement/bubbler systems
  • Lime plants
  • Oil/water separators
  • Oxygen plants
  • Piping components
  • Potable water disinfection
  • Pump flow protection
  • Reverse osmosis (RO) filtration
  • Scrubbers
  • Sludge buildings
  • Sodium hypochlorite skids
  • Pump/booster stations

Products for Water & Wastewater Treatment

Our fluid system products are supported worldwide by 200-plus authorized Swagelok sales and service center locations and backed by our Limited Lifetime Warranty. From commonly used products to custom components and assemblies, everything we design, manufacture, and assemble is to ensure the highest level of application, process, and instrumentation integrity.



Swagelok® tube fittings are easy to install, disassemble, and reassemble to get lasting leak-tight performance. Find tube fittings in 316/316L stainless steel and other alloys for corrosive environments, as well as pipe fittings, weld fittings, assembly-by-torque (AbT) fittings, metal gasket face seal fittings, PFA fittings, vacuum fittings, and flange adapters.



Our process and instrumentation valves in single-seat, ball, and other configurations provide reliability and require low maintenance. Swagelok® 40 series and 60 series ball valves are known for durability and the ability to suit a wide range of system conditions in water and wastewater treatment plants. Also, turn to us for check valves, needle and metering valves, relief valves, and plug valves.



Our pressure-reducing (spring-loaded or dome-loaded), back-pressure (spring-loaded or dome-loaded), and specialty regulators include standard and custom options to match your equipment or instrumentation needs. Also, get compact high-purity, high-flow gas regulators that allow for close spacing of system components and process lines.

Swagelok pressure gauge

Pressure Gauges

Choose from a wide selection of gauges designed for all types of pressure and service conditions. Multiple-mount configurations make our gauges convenient to install. Also, find other measurement devices, including pressure transducers, flow sensors, and thermometers.

welding system

Orbital Welding System

Weld precisely and consistently with the Swagelok® M200 orbital welding system, providing cost-effective, reliable orbital gas tungsten arc welds (GTAW) for both tubing and pipe. Make quality welds with fewer preparations than manual methods. Orbital welding also poses less of a fire hazard, helping your facility avoid incidents and injuries.

tubing and tube accessories

Tubing and Accessories

Find reliable tubing and accessories including support systems, swaging tools, tube benders, and tube cutting and preparation tools. Our catalogs are loaded with detailed product information, including materials of construction, pressure and temperature ratings, and many different tubing options so you can build systems that last.

Swagelok quick connects

Quick Connects

We offer a variety of quick connects that enable fast, simple operation without twisting, turning, or wrenching. Engineered to minimize spillage and air inclusion so you can make connections with confidence, our complete quick connects line includes full-flow, instrumentation, miniature, and PTFE-sealed options.



Avoid particulate contaminants leading to inaccurate analyzer readings or other downstream problems. Our particulate filters and coalescing filters are designed to preserve the integrity of your water treatment and sampling processes.

Sanitary hose for the life science industry

Hoses and Flexible Tubing

Find rubber hose, thermoplastic hose, and PFA and vinyl flexible tubing for practically all pressure and temperature requirements. PTFE core hose and PFA core hose from Swagelok give you more chemically resistant options for low-pressure applications. Our sales and service centers are ready to assist you with assembly and other hose management services.

Engineering Services for Water & Wastewater Treatment

Troubleshooting the exact cause of system irregularities in an expansive and intricate water and wastewater treatment facility can be a big undertaking. Swagelok field specialists are well-equipped to make sense of your treatment processes. They can also help you verify that systems are set up for optimal efficiency, safety, and to capture and maintain the highest-integrity representative samples. Swagelok® engineering services are as varied as your needs.

Design and Assembly Services

Design and Assembly Services

Receive as much design support as you need. Our sales and service center associates can follow your existing design or work with you to develop a new one. Swagelok is also your source for fabricated solutions like valve control, lubrication, and pneumatic control panels, as well as chemical dosing and metering skids. Get CAD drawings, piping and instrumentation diagrams (P&IDs), component selection and sourcing, bills of materials, and professional testing, packaging, and delivery—all from one source.

Evaluation and Advisory Services

Onsite Services

Swagelok field engineers can evaluate your fluid or sampling systems, advise on installation practices, and recommend system enhancements via detailed reports. Learn more about optimizing systems, identifying leaks, proper hose selection and routing, and where your water or wastewater treatment plant is losing energy.

Fluid System Training

Essentials Training

Certified trainers can equip teams across your organization with the knowledge and confidence to solve fluid system challenges. We can coordinate training for your entire maintenance, innovation, and mechanical engineering teams including hose, valve, and regulator selection and troubleshooting, fitting assembly, proper tube bending, as well as how to choose the right corrosion-resistant materials. In-depth, hands-on courses are taught by veteran instructors recognized for their exceptional skills.

Materials Science

Materials Science Training

Choosing the right corrosion-resistant materials helps keep fluid systems leak-tight. Learn which alloys resist corrosion and how industry standards impact your choices. Swagelok® materials science training is for engineers, supervisors, purchasing agents, technical associates, and anyone involved in the material selection process.

How We Support Water & Wastewater Treatment

Keeping wastewater plants online

Keeping Plants Online 

Our goal is to keep your water or wastewater treatment plant online with proven products and onsite services that enable more productive, safe, and efficient operations. Customers worldwide trust Swagelok field engineering teams to help them diagnose issues, maintain high-precision processes, and provide a faster return to service for vital assets. 

  • Swagelok specialists possess technical knowledge specific to the water and wastewater treatment industry and are well-versed in local regulations and governing agencies
  • Local professionals can evaluate leakage at your facility and provide you with a full detailed report, highlighting corrective actions
  • Our network of sales and service centers provides you with fast access to a skilled workforce when you need it most
  • Ask your sales and service center about one-part-number project kits (loosely assembled or fully kitted) that support easier procurement for municipalities and requestors
  • Inventory management programs are another way we are different—onsite consignment cabinets and special stocking arrangements can help your teams work more efficiently so you spend less

Combatting corrosion in wastewater treatment plants

Combatting Corrosion

Corrosion can be the result of high acidity levels in wastewater or caused by increased alkalinity, which reduces calcium carbonate solubility, leading to scaling. Both scenarios can spell costly problems for plants with fluid systems to maintain. We can support your treatment facility with corrosion-resistant materials as well as corrosion training sessions to help educate your staff on best practices and preventive measures.

  • It can be hard to find certain components composed of specific alloys. Swagelok materials scientists can help you choose between many fluid system products made from special materials like 316 stainless steel, alloy 2507, and 6 Moly alloys that provide far stronger corrosion resistance than ordinary options.
  • Our 316 stainless steel tube fittings use more nickel and chromium than is required by American Society of Testing and Materials (ASTM International) standard specifications. Enabling leak-tight performance in every application is our top priority.
  • Process inefficiencies and equipment breakdowns lead to costly downtime. Leverage our extensive knowledge of corrosive environments to solve everyday fluid system challenges—and the challenges you do not see every day.
  • We can help your teams understand the different types of corrosion and their causes. Knowing where to look—and what corrosion looks like—can help you fight back against material failures and costly repairs.

Risk reduction in wastewater treatment plants

Risk Reduction

Our product quality has been trusted for more than seven decades. We know that product quality alone will not ensure leak-tight system functionality, which is why we are willing to help design a comprehensive training plan for your staff. Investing in your people can demystify fluid systems, boost morale, reduce time and material waste, and increase productivity. We are a leader in helping to reduce risk across industries that rely on absolute fluid system integrity.

  • Not everyone can be a chemical injection skid expert—turn to our local professionals when you need custom solutions for complex equipment
  • Swagelok fluid system specialists can also help with the integration of tubing and coiled tubing throughout your water or wastewater treatment facility by instructing your crews on best practices
  • Because failure is not an option, Swagelok-trained professionals will assist your engineers and technicians in implementing a variety of strategies to preserve the safety of your fluid systems, particularly during the planning and design stages
  • Our comprehensive training programs further equip your teams with practical skills to work safer and more effectively each day


Resource Center

Swagelok valve selection

Blog: Valves 101: Basic Functions and Types

Fluid system design can be complex, requiring many considerations. It may not always be readily apparent which valve is right for your application. Do you need to stop and start flow? Or control the direction or flow level? Our experts answer some of the most common questions.

Graphic image comparing pitting corrosion and crevice corrosion in stainless steel

Blog: Minimizing Material Corrosion

There are steps companies can take to prevent rust that first require an understanding of the different types of corrosion and their causes. Knowing where to look—and what corrosion looks like—can help you fight back against material failures and costly repairs.

how to bend tubing with a Swagelok tube bender

Blog: How to Bend Tubing and When to Do It

Following best practices can help technicians avoid common defects that can compromise the integrity of even the simplest tube bends. It is important to identify where tube bends are most applicable in your systems. Doing this can save your business time, labor, and money.

industrial fluid system safety

Toolbox: Fluid System Safety Checklist (Printable)

Fluid systems can be complex, presenting an array of apparent and not-so-obvious risk areas. How can you be sure that all parts of your system are operating safely and reliably when failure is not an option? Our handy checklist is printable so you can hang it throughout your plant.

Valve Flow Coefficient Calculator

Toolbox: Cv Calculator for Valve Sizing

This calculator can be used to help select a valve with enough flow capacity for a given application. The valve flow coefficient (Cv) is a convenient way to represent flow capacity of a valve. Calculate Cv or flow based on fluid, inlet and outlet pressure, and fluid temperature.

Video: Fluid-System Expertise and Vendor-Managed Inventory Bolster Productivity

Video: Consignment Helps Carbon Capture Company Save

LanzaTech develops processes to convert industrial waste and pollution streams into product streams that can be sold on the open market. This company uses Swagelok’s vendor-managed inventory (VMI) offering to save time, lower costs, and improve its customer responsiveness.

Video: Swagelok Tube Fitting Installation

Video: Swagelok® Tube Fitting Installation

Learn the three steps to installing tube fittings from Swagelok, as well as two mistakes you should always avoid. In just a little time, you can learn practical skills that contribute to years of leak-tight performance from your fluid systems.

 Compressed Gas Leak Detection Services video

Video: Leak Detection Services

Improve efficiency and reliability throughout your water or wastewater treatment plant with Swagelok® engineering services. Get the help you need to identify fluid system leaks and quantify leak rates so you can prioritize the most critical issues.

Video: How to Rebuild or Repack Valves

Video: How to Rebuild or Repack Valves

Learn how to use our rebuilding kits for manually and remotely actuated Swagelok® valves. Each kit contains detailed instructions for adjusting or replacing the packing, or for rebuilding the valve if necessary. This video shows you how easy service can be.