W100W Series controllers are simple and reliable entry-level controllers for use in applications where straightforward conductivity, pH, or ORP control is required.

Intuition-6® Series controls include more I/O and capabilities than the W100W Series, where more complex industrial wastewater applications are needed. It supports additional sensors such as dissolved oxygen, turbidity, or oil in water applications.

For your most advanced industrial wastewater applications, the Intuition-9® Series controllers support processes such as chrome conversion, pH adjustment and neutralization, cyanide destruction, batch treatment systems, continuous flow wastewater systems. It also offers field-changeable relay outputs and additional output options not found in other controller series.

• Non-contacting type available in either CPVC, PEEK, and polypropylene for higher temperature and pressure.
• Electrodeless (non-contacting) sensors are best for dirty and oily baths and are one of the most widely used sensors for monitoring and control in wastewater applications.

• Suitable for general use, particularly in very low conductivity aapplication and where non-contacting type sensors would not be required.

WEL Series Electrodes are cost-effective differential pH and ORP sensors that provide long-lasting and reliable performance in various industrial applications.

• A two-piece design allows for a simple and lower cost sensor cartridge replacement.
• ORP sensors are available with a gold electrode option in place of the standard platinum.

Walchem’s WDS Series Differential pH and ORP Sensors are designed to provide industrial grade performance. The differential technique utilizes two electrodes, one for the process and the other for the reference measurement.

• The differential technique utilizes two electrodes, one for the process and the other for the reference measurement.
• Sensors include a porous, easily replaceable salt bridge, should the solution become contaminated, or the salt bridge becomes clogged.

Pyxis Dissolved Oxygen (DO) Sensors use advanced fluorescence technology for accurate, maintenance-friendly oxygen measurement

• Measurements of dissolved oxygen (DO) are critical in a variety of industrial water treatment processes
  • Support life and overall process efficiency
  • Allows regulatory discharge compliance
• Applications in industrial wastewater treatment include activated sludge, aeration tanks, nutrient removal and others.
• Available in CPVC and stainless steel for both in-line and submersion applications
• Stainless steel or CPVC construction
• Flexible communication includes analog (4-20 mA) and RS-485 outputs Modbus

Pyxis Turbidity Sensors for a wide range of industrial wastewater treatment applications

• Available to meet both USA EPA 1801 and European ISO 7027 methods
• Assemblies are available for in-line tee, with a flow reservoir, and submersion with auto brushing for self-cleaning
• Stainless steel or CPVC construction
• Flexible communication includes analog (4-20 mA) and RS-485 outputs Modbus

• Use a UV-fluorescence methodology along with color and turbidity compensation for real world waters up to 150 NTU.
• Available in CPVC and stainless steel for both in-line and submersion applications including industrial wastewater monitoring and intake water monitoring.
• Flexible communication includes analog (4-20 mA) and RS-485 outputs

• Simple to operate, microprocessor control with 360:1 turndown
• Outputs to 6.3 GPH (28.6 LPH) and a maximum pressure rating to 150 PSI (1.03 MPa)
• Broad Range of liquid end materials including PVC, PP, PVDF, and Stainless Steel

• Operates at 360 strokes-per-minute, providing high resolution chemical feed and high turndown
• Outputs to 3.2 GPH (12.0 LPH) and a maximum pressure rating of 175 PSI (1.2 MPa)
• Both On/Off and simple 1 to 1 control
• Broad Range of liquid end materials including PVC, PP, and PVDF

• Operates at 1800 stroke-per-minute, resulting in high resolution and long service life
• Outputs to 6.7 GPH (30.4 LPH) and a maximum pressure rating of 290 PSI (2.0 MPa)
• Primes in seconds and holds prime reliably
• EWN-R and EWN-Y versions available
• Analog control, digital input, external stop control, simple speed & stroke length control, batch control, and auto output control with available EFS sensor
• Broad Range of liquid end materials including PVC, PP, and PVDF

• Operates with a turndown ratio of 1800 to 1, yielding a most versatile pump for use in a wide range of water treatment applications
• Outputs to 20.0 GPH (75 LPH) and a maximum pressure rating of 150 PSI (1.03 MPa)
• Operator adjustable pump seed and external input settings
• Pump can multiply or divide by a factor of 1 to 999 and has programmable 4-20 mA outputs
• Broad Range of liquid end materials including PVC, PP, PVDF, and Stainless Steel

• Digitally controlled direct-drive diaphragm pumps
• Fixed stroke length and proprietary liquid end design result in fast priming and no gas lock at any flow rate
• Operates with a turndown ratio of 1000 to 1, yielding the most versatile pump in industrial wastewater treatment
• Outputs to 80.0 GPH (300 LPH) and a maximum pressure rating of 247 PSI (1.7 MPa)
• Repeatability of ±1% and reduced power consumption by up to 70%

• Outputs up to 856 GPH (3240 LPH) and pressure ratings up to 225 PSI (1.55 MPa)
• These motor-driven pumps consist of three main sections
• Robust and oversized gear reduction design to maximize pump life
• Simple to operate with manual stroke length control and 10:1 turndown
• Motor options available for various control or environmental conditions
• Ideal for large chemical feed applications including:
  • Industrial wastewater and water
  • Chemical processing
  • Mining
  • Paper

• General Industrial Wastewater treatment applications require many chemicals in the process including:
• Fume scrubbers
• Chemical transfer
• Recirculation and filtration
• Replenishment

• ¼” to 3” size range up to 250 gallons per minute
• Air powered – no need for electrical connections
• Self-priming, can run dry or against a closed discharge valve
• Great for many industrial wastewater treatment applications including:
  • Wastewater transfer
  • Sludge transfer
  • Wastewater treatment

Walchem carries a wide range of both controller and pump parts and accessories to fit your application